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-rw-r--r--arch/arc/include/uapi/asm/sigcontext.h1
-rw-r--r--arch/arc/kernel/signal.c43
-rw-r--r--arch/arc/kernel/vmlinux.lds.S2
-rw-r--r--arch/arm/include/asm/cpuidle.h5
-rw-r--r--arch/powerpc/include/asm/jump_label.h2
-rw-r--r--arch/powerpc/kernel/signal_64.c9
-rw-r--r--arch/powerpc/mm/mem.c1
-rw-r--r--arch/powerpc/perf/core-book3s.c2
-rw-r--r--arch/riscv/Kconfig18
-rw-r--r--arch/riscv/Kconfig.socs1
-rw-r--r--arch/riscv/Makefile2
-rw-r--r--arch/riscv/boot/dts/microchip/Makefile1
-rw-r--r--arch/riscv/boot/dts/sifive/Makefile1
-rw-r--r--arch/riscv/boot/dts/sifive/fu740-c000.dtsi2
-rw-r--r--arch/riscv/include/asm/alternative-macros.h4
-rw-r--r--arch/riscv/include/asm/pgtable.h5
-rw-r--r--arch/riscv/kernel/traps.c13
-rw-r--r--arch/riscv/kernel/vmlinux-xip.lds.S15
-rw-r--r--arch/riscv/mm/kasan_init.c10
-rw-r--r--arch/s390/kernel/entry.S4
-rw-r--r--arch/x86/Makefile5
-rw-r--r--arch/x86/events/intel/uncore_snbep.c9
-rw-r--r--arch/x86/kernel/cpu/perfctr-watchdog.c4
-rw-r--r--arch/x86/kvm/cpuid.c1
-rw-r--r--arch/x86/kvm/lapic.c20
-rw-r--r--arch/x86/kvm/mmu/mmu.c26
-rw-r--r--arch/x86/kvm/mmu/paging_tmpl.h14
-rw-r--r--arch/x86/kvm/svm/avic.c6
-rw-r--r--arch/x86/kvm/svm/sev.c26
-rw-r--r--arch/x86/kvm/trace.h6
-rw-r--r--arch/x86/kvm/vmx/vmx.c1
-rw-r--r--arch/x86/kvm/x86.c25
-rw-r--r--arch/x86/pci/fixup.c44
33 files changed, 253 insertions, 75 deletions
diff --git a/arch/arc/include/uapi/asm/sigcontext.h b/arch/arc/include/uapi/asm/sigcontext.h
index 95f8a4380e11..7a5449dfcb29 100644
--- a/arch/arc/include/uapi/asm/sigcontext.h
+++ b/arch/arc/include/uapi/asm/sigcontext.h
@@ -18,6 +18,7 @@
*/
struct sigcontext {
struct user_regs_struct regs;
+ struct user_regs_arcv2 v2abi;
};
#endif /* _ASM_ARC_SIGCONTEXT_H */
diff --git a/arch/arc/kernel/signal.c b/arch/arc/kernel/signal.c
index b3ccb9e5ffe4..cb2f88502baf 100644
--- a/arch/arc/kernel/signal.c
+++ b/arch/arc/kernel/signal.c
@@ -61,6 +61,41 @@ struct rt_sigframe {
unsigned int sigret_magic;
};
+static int save_arcv2_regs(struct sigcontext *mctx, struct pt_regs *regs)
+{
+ int err = 0;
+#ifndef CONFIG_ISA_ARCOMPACT
+ struct user_regs_arcv2 v2abi;
+
+ v2abi.r30 = regs->r30;
+#ifdef CONFIG_ARC_HAS_ACCL_REGS
+ v2abi.r58 = regs->r58;
+ v2abi.r59 = regs->r59;
+#else
+ v2abi.r58 = v2abi.r59 = 0;
+#endif
+ err = __copy_to_user(&mctx->v2abi, &v2abi, sizeof(v2abi));
+#endif
+ return err;
+}
+
+static int restore_arcv2_regs(struct sigcontext *mctx, struct pt_regs *regs)
+{
+ int err = 0;
+#ifndef CONFIG_ISA_ARCOMPACT
+ struct user_regs_arcv2 v2abi;
+
+ err = __copy_from_user(&v2abi, &mctx->v2abi, sizeof(v2abi));
+
+ regs->r30 = v2abi.r30;
+#ifdef CONFIG_ARC_HAS_ACCL_REGS
+ regs->r58 = v2abi.r58;
+ regs->r59 = v2abi.r59;
+#endif
+#endif
+ return err;
+}
+
static int
stash_usr_regs(struct rt_sigframe __user *sf, struct pt_regs *regs,
sigset_t *set)
@@ -94,6 +129,10 @@ stash_usr_regs(struct rt_sigframe __user *sf, struct pt_regs *regs,
err = __copy_to_user(&(sf->uc.uc_mcontext.regs.scratch), &uregs.scratch,
sizeof(sf->uc.uc_mcontext.regs.scratch));
+
+ if (is_isa_arcv2())
+ err |= save_arcv2_regs(&(sf->uc.uc_mcontext), regs);
+
err |= __copy_to_user(&sf->uc.uc_sigmask, set, sizeof(sigset_t));
return err ? -EFAULT : 0;
@@ -109,6 +148,10 @@ static int restore_usr_regs(struct pt_regs *regs, struct rt_sigframe __user *sf)
err |= __copy_from_user(&uregs.scratch,
&(sf->uc.uc_mcontext.regs.scratch),
sizeof(sf->uc.uc_mcontext.regs.scratch));
+
+ if (is_isa_arcv2())
+ err |= restore_arcv2_regs(&(sf->uc.uc_mcontext), regs);
+
if (err)
return -EFAULT;
diff --git a/arch/arc/kernel/vmlinux.lds.S b/arch/arc/kernel/vmlinux.lds.S
index 33ce59d91461..e2146a8da195 100644
--- a/arch/arc/kernel/vmlinux.lds.S
+++ b/arch/arc/kernel/vmlinux.lds.S
@@ -57,7 +57,6 @@ SECTIONS
.init.ramfs : { INIT_RAM_FS }
. = ALIGN(PAGE_SIZE);
- _stext = .;
HEAD_TEXT_SECTION
INIT_TEXT_SECTION(L1_CACHE_BYTES)
@@ -83,6 +82,7 @@ SECTIONS
.text : {
_text = .;
+ _stext = .;
TEXT_TEXT
SCHED_TEXT
CPUIDLE_TEXT
diff --git a/arch/arm/include/asm/cpuidle.h b/arch/arm/include/asm/cpuidle.h
index 0d67ed682e07..bc4ffa7ca04c 100644
--- a/arch/arm/include/asm/cpuidle.h
+++ b/arch/arm/include/asm/cpuidle.h
@@ -7,9 +7,11 @@
#ifdef CONFIG_CPU_IDLE
extern int arm_cpuidle_simple_enter(struct cpuidle_device *dev,
struct cpuidle_driver *drv, int index);
+#define __cpuidle_method_section __used __section("__cpuidle_method_of_table")
#else
static inline int arm_cpuidle_simple_enter(struct cpuidle_device *dev,
struct cpuidle_driver *drv, int index) { return -ENODEV; }
+#define __cpuidle_method_section __maybe_unused /* drop silently */
#endif
/* Common ARM WFI state */
@@ -42,8 +44,7 @@ struct of_cpuidle_method {
#define CPUIDLE_METHOD_OF_DECLARE(name, _method, _ops) \
static const struct of_cpuidle_method __cpuidle_method_of_table_##name \
- __used __section("__cpuidle_method_of_table") \
- = { .method = _method, .ops = _ops }
+ __cpuidle_method_section = { .method = _method, .ops = _ops }
extern int arm_cpuidle_suspend(int index);
diff --git a/arch/powerpc/include/asm/jump_label.h b/arch/powerpc/include/asm/jump_label.h
index 2d5c6bec2b4f..93ce3ec25387 100644
--- a/arch/powerpc/include/asm/jump_label.h
+++ b/arch/powerpc/include/asm/jump_label.h
@@ -50,7 +50,7 @@ l_yes:
1098: nop; \
.pushsection __jump_table, "aw"; \
.long 1098b - ., LABEL - .; \
- FTR_ENTRY_LONG KEY; \
+ FTR_ENTRY_LONG KEY - .; \
.popsection
#endif
diff --git a/arch/powerpc/kernel/signal_64.c b/arch/powerpc/kernel/signal_64.c
index dca66481d0c2..f9e1f5428b9e 100644
--- a/arch/powerpc/kernel/signal_64.c
+++ b/arch/powerpc/kernel/signal_64.c
@@ -902,6 +902,10 @@ int handle_rt_signal64(struct ksignal *ksig, sigset_t *set,
unsafe_copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set), badframe_block);
user_write_access_end();
+ /* Save the siginfo outside of the unsafe block. */
+ if (copy_siginfo_to_user(&frame->info, &ksig->info))
+ goto badframe;
+
/* Make sure signal handler doesn't get spurious FP exceptions */
tsk->thread.fp_state.fpscr = 0;
@@ -915,11 +919,6 @@ int handle_rt_signal64(struct ksignal *ksig, sigset_t *set,
regs->nip = (unsigned long) &frame->tramp[0];
}
-
- /* Save the siginfo outside of the unsafe block. */
- if (copy_siginfo_to_user(&frame->info, &ksig->info))
- goto badframe;
-
/* Allocate a dummy caller frame for the signal handler. */
newsp = ((unsigned long)frame) - __SIGNAL_FRAMESIZE;
err |= put_user(regs->gpr[1], (unsigned long __user *)newsp);
diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c
index 043bbeaf407c..a6b36a40897a 100644
--- a/arch/powerpc/mm/mem.c
+++ b/arch/powerpc/mm/mem.c
@@ -20,6 +20,7 @@
#include <asm/machdep.h>
#include <asm/rtas.h>
#include <asm/kasan.h>
+#include <asm/sparsemem.h>
#include <asm/svm.h>
#include <mm/mmu_decl.h>
diff --git a/arch/powerpc/perf/core-book3s.c b/arch/powerpc/perf/core-book3s.c
index 16d4d1b6a1ff..51622411a7cc 100644
--- a/arch/powerpc/perf/core-book3s.c
+++ b/arch/powerpc/perf/core-book3s.c
@@ -2254,7 +2254,7 @@ unsigned long perf_instruction_pointer(struct pt_regs *regs)
bool use_siar = regs_use_siar(regs);
unsigned long siar = mfspr(SPRN_SIAR);
- if (ppmu->flags & PPMU_P10_DD1) {
+ if (ppmu && (ppmu->flags & PPMU_P10_DD1)) {
if (siar)
return siar;
else
diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
index c5914e70a0fd..18ec0f9bb8d5 100644
--- a/arch/riscv/Kconfig
+++ b/arch/riscv/Kconfig
@@ -61,11 +61,11 @@ config RISCV
select GENERIC_TIME_VSYSCALL if MMU && 64BIT
select HANDLE_DOMAIN_IRQ
select HAVE_ARCH_AUDITSYSCALL
- select HAVE_ARCH_JUMP_LABEL
- select HAVE_ARCH_JUMP_LABEL_RELATIVE
+ select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL
+ select HAVE_ARCH_JUMP_LABEL_RELATIVE if !XIP_KERNEL
select HAVE_ARCH_KASAN if MMU && 64BIT
select HAVE_ARCH_KASAN_VMALLOC if MMU && 64BIT
- select HAVE_ARCH_KGDB
+ select HAVE_ARCH_KGDB if !XIP_KERNEL
select HAVE_ARCH_KGDB_QXFER_PKT
select HAVE_ARCH_MMAP_RND_BITS if MMU
select HAVE_ARCH_SECCOMP_FILTER
@@ -80,9 +80,9 @@ config RISCV
select HAVE_GCC_PLUGINS
select HAVE_GENERIC_VDSO if MMU && 64BIT
select HAVE_IRQ_TIME_ACCOUNTING
- select HAVE_KPROBES
- select HAVE_KPROBES_ON_FTRACE
- select HAVE_KRETPROBES
+ select HAVE_KPROBES if !XIP_KERNEL
+ select HAVE_KPROBES_ON_FTRACE if !XIP_KERNEL
+ select HAVE_KRETPROBES if !XIP_KERNEL
select HAVE_PCI
select HAVE_PERF_EVENTS
select HAVE_PERF_REGS
@@ -231,11 +231,11 @@ config ARCH_RV64I
bool "RV64I"
select 64BIT
select ARCH_SUPPORTS_INT128 if CC_HAS_INT128 && GCC_VERSION >= 50000
- select HAVE_DYNAMIC_FTRACE if MMU && $(cc-option,-fpatchable-function-entry=8)
+ select HAVE_DYNAMIC_FTRACE if !XIP_KERNEL && MMU && $(cc-option,-fpatchable-function-entry=8)
select HAVE_DYNAMIC_FTRACE_WITH_REGS if HAVE_DYNAMIC_FTRACE
- select HAVE_FTRACE_MCOUNT_RECORD
+ select HAVE_FTRACE_MCOUNT_RECORD if !XIP_KERNEL
select HAVE_FUNCTION_GRAPH_TRACER
- select HAVE_FUNCTION_TRACER
+ select HAVE_FUNCTION_TRACER if !XIP_KERNEL
select SWIOTLB if MMU
endchoice
diff --git a/arch/riscv/Kconfig.socs b/arch/riscv/Kconfig.socs
index ed963761fbd2..30676ebb16eb 100644
--- a/arch/riscv/Kconfig.socs
+++ b/arch/riscv/Kconfig.socs
@@ -14,6 +14,7 @@ config SOC_SIFIVE
select CLK_SIFIVE
select CLK_SIFIVE_PRCI
select SIFIVE_PLIC
+ select RISCV_ERRATA_ALTERNATIVE
select ERRATA_SIFIVE
help
This enables support for SiFive SoC platform hardware.
diff --git a/arch/riscv/Makefile b/arch/riscv/Makefile
index 4be020695428..99ecd8bcfd77 100644
--- a/arch/riscv/Makefile
+++ b/arch/riscv/Makefile
@@ -16,7 +16,7 @@ ifeq ($(CONFIG_DYNAMIC_FTRACE),y)
CC_FLAGS_FTRACE := -fpatchable-function-entry=8
endif
-ifeq ($(CONFIG_64BIT)$(CONFIG_CMODEL_MEDLOW),yy)
+ifeq ($(CONFIG_CMODEL_MEDLOW),y)
KBUILD_CFLAGS_MODULE += -mcmodel=medany
endif
diff --git a/arch/riscv/boot/dts/microchip/Makefile b/arch/riscv/boot/dts/microchip/Makefile
index 622b12771fd3..855c1502d912 100644
--- a/arch/riscv/boot/dts/microchip/Makefile
+++ b/arch/riscv/boot/dts/microchip/Makefile
@@ -1,2 +1,3 @@
# SPDX-License-Identifier: GPL-2.0
dtb-$(CONFIG_SOC_MICROCHIP_POLARFIRE) += microchip-mpfs-icicle-kit.dtb
+obj-$(CONFIG_BUILTIN_DTB) += $(addsuffix .o, $(dtb-y))
diff --git a/arch/riscv/boot/dts/sifive/Makefile b/arch/riscv/boot/dts/sifive/Makefile
index 74c47fe9fc22..d90e4eb0ade8 100644
--- a/arch/riscv/boot/dts/sifive/Makefile
+++ b/arch/riscv/boot/dts/sifive/Makefile
@@ -1,3 +1,4 @@
# SPDX-License-Identifier: GPL-2.0
dtb-$(CONFIG_SOC_SIFIVE) += hifive-unleashed-a00.dtb \
hifive-unmatched-a00.dtb
+obj-$(CONFIG_BUILTIN_DTB) += $(addsuffix .o, $(dtb-y))
diff --git a/arch/riscv/boot/dts/sifive/fu740-c000.dtsi b/arch/riscv/boot/dts/sifive/fu740-c000.dtsi
index 8eef82e4199f..abbb960f90a0 100644
--- a/arch/riscv/boot/dts/sifive/fu740-c000.dtsi
+++ b/arch/riscv/boot/dts/sifive/fu740-c000.dtsi
@@ -273,7 +273,7 @@
cache-size = <2097152>;
cache-unified;
interrupt-parent = <&plic0>;
- interrupts = <19 20 21 22>;
+ interrupts = <19 21 22 20>;
reg = <0x0 0x2010000 0x0 0x1000>;
};
gpio: gpio@10060000 {
diff --git a/arch/riscv/include/asm/alternative-macros.h b/arch/riscv/include/asm/alternative-macros.h
index 88c08705f64a..67406c376389 100644
--- a/arch/riscv/include/asm/alternative-macros.h
+++ b/arch/riscv/include/asm/alternative-macros.h
@@ -51,7 +51,7 @@
REG_ASM " " newlen "\n" \
".word " errata_id "\n"
-#define ALT_NEW_CONSTENT(vendor_id, errata_id, enable, new_c) \
+#define ALT_NEW_CONTENT(vendor_id, errata_id, enable, new_c) \
".if " __stringify(enable) " == 1\n" \
".pushsection .alternative, \"a\"\n" \
ALT_ENTRY("886b", "888f", __stringify(vendor_id), __stringify(errata_id), "889f - 888f") \
@@ -69,7 +69,7 @@
"886 :\n" \
old_c "\n" \
"887 :\n" \
- ALT_NEW_CONSTENT(vendor_id, errata_id, enable, new_c)
+ ALT_NEW_CONTENT(vendor_id, errata_id, enable, new_c)
#define _ALTERNATIVE_CFG(old_c, new_c, vendor_id, errata_id, CONFIG_k) \
__ALTERNATIVE_CFG(old_c, new_c, vendor_id, errata_id, IS_ENABLED(CONFIG_k))
diff --git a/arch/riscv/include/asm/pgtable.h b/arch/riscv/include/asm/pgtable.h
index 9469f464e71a..380cd3a7e548 100644
--- a/arch/riscv/include/asm/pgtable.h
+++ b/arch/riscv/include/asm/pgtable.h
@@ -30,9 +30,8 @@
#define BPF_JIT_REGION_SIZE (SZ_128M)
#ifdef CONFIG_64BIT
-/* KASLR should leave at least 128MB for BPF after the kernel */
-#define BPF_JIT_REGION_START PFN_ALIGN((unsigned long)&_end)
-#define BPF_JIT_REGION_END (BPF_JIT_REGION_START + BPF_JIT_REGION_SIZE)
+#define BPF_JIT_REGION_START (BPF_JIT_REGION_END - BPF_JIT_REGION_SIZE)
+#define BPF_JIT_REGION_END (MODULES_END)
#else
#define BPF_JIT_REGION_START (PAGE_OFFSET - BPF_JIT_REGION_SIZE)
#define BPF_JIT_REGION_END (VMALLOC_END)
diff --git a/arch/riscv/kernel/traps.c b/arch/riscv/kernel/traps.c
index 0721b9798595..7bc88d8aab97 100644
--- a/arch/riscv/kernel/traps.c
+++ b/arch/riscv/kernel/traps.c
@@ -86,8 +86,13 @@ static void do_trap_error(struct pt_regs *regs, int signo, int code,
}
}
+#if defined (CONFIG_XIP_KERNEL) && defined (CONFIG_RISCV_ERRATA_ALTERNATIVE)
+#define __trap_section __section(".xip.traps")
+#else
+#define __trap_section
+#endif
#define DO_ERROR_INFO(name, signo, code, str) \
-asmlinkage __visible void name(struct pt_regs *regs) \
+asmlinkage __visible __trap_section void name(struct pt_regs *regs) \
{ \
do_trap_error(regs, signo, code, regs->epc, "Oops - " str); \
}
@@ -111,7 +116,7 @@ DO_ERROR_INFO(do_trap_store_misaligned,
int handle_misaligned_load(struct pt_regs *regs);
int handle_misaligned_store(struct pt_regs *regs);
-asmlinkage void do_trap_load_misaligned(struct pt_regs *regs)
+asmlinkage void __trap_section do_trap_load_misaligned(struct pt_regs *regs)
{
if (!handle_misaligned_load(regs))
return;
@@ -119,7 +124,7 @@ asmlinkage void do_trap_load_misaligned(struct pt_regs *regs)
"Oops - load address misaligned");
}
-asmlinkage void do_trap_store_misaligned(struct pt_regs *regs)
+asmlinkage void __trap_section do_trap_store_misaligned(struct pt_regs *regs)
{
if (!handle_misaligned_store(regs))
return;
@@ -146,7 +151,7 @@ static inline unsigned long get_break_insn_length(unsigned long pc)
return GET_INSN_LENGTH(insn);
}
-asmlinkage __visible void do_trap_break(struct pt_regs *regs)
+asmlinkage __visible __trap_section void do_trap_break(struct pt_regs *regs)
{
#ifdef CONFIG_KPROBES
if (kprobe_single_step_handler(regs))
diff --git a/arch/riscv/kernel/vmlinux-xip.lds.S b/arch/riscv/kernel/vmlinux-xip.lds.S
index 4b29b9917f99..a3ff09c4c3f9 100644
--- a/arch/riscv/kernel/vmlinux-xip.lds.S
+++ b/arch/riscv/kernel/vmlinux-xip.lds.S
@@ -99,9 +99,22 @@ SECTIONS
}
PERCPU_SECTION(L1_CACHE_BYTES)
- . = ALIGN(PAGE_SIZE);
+ . = ALIGN(8);
+ .alternative : {
+ __alt_start = .;
+ *(.alternative)
+ __alt_end = .;
+ }
__init_end = .;
+ . = ALIGN(16);
+ .xip.traps : {
+ __xip_traps_start = .;
+ *(.xip.traps)
+ __xip_traps_end = .;
+ }
+
+ . = ALIGN(PAGE_SIZE);
.sdata : {
__global_pointer$ = . + 0x800;
*(.sdata*)
diff --git a/arch/riscv/mm/kasan_init.c b/arch/riscv/mm/kasan_init.c
index 9daacae93e33..d7189c8714a9 100644
--- a/arch/riscv/mm/kasan_init.c
+++ b/arch/riscv/mm/kasan_init.c
@@ -169,7 +169,7 @@ static void __init kasan_shallow_populate(void *start, void *end)
void __init kasan_init(void)
{
- phys_addr_t _start, _end;
+ phys_addr_t p_start, p_end;
u64 i;
/*
@@ -189,9 +189,9 @@ void __init kasan_init(void)
(void *)kasan_mem_to_shadow((void *)VMALLOC_END));
/* Populate the linear mapping */
- for_each_mem_range(i, &_start, &_end) {
- void *start = (void *)__va(_start);
- void *end = (void *)__va(_end);
+ for_each_mem_range(i, &p_start, &p_end) {
+ void *start = (void *)__va(p_start);
+ void *end = (void *)__va(p_end);
if (start >= end)
break;
@@ -201,7 +201,7 @@ void __init kasan_init(void)
/* Populate kernel, BPF, modules mapping */
kasan_populate(kasan_mem_to_shadow((const void *)MODULES_VADDR),
- kasan_mem_to_shadow((const void *)BPF_JIT_REGION_END));
+ kasan_mem_to_shadow((const void *)MODULES_VADDR + SZ_2G));
for (i = 0; i < PTRS_PER_PTE; i++)
set_pte(&kasan_early_shadow_pte[i],
diff --git a/arch/s390/kernel/entry.S b/arch/s390/kernel/entry.S
index 12de7a9c85b3..9cc71ca9a88f 100644
--- a/arch/s390/kernel/entry.S
+++ b/arch/s390/kernel/entry.S
@@ -651,9 +651,9 @@ ENDPROC(stack_overflow)
.Lcleanup_sie_mcck:
larl %r13,.Lsie_entry
slgr %r9,%r13
- larl %r13,.Lsie_skip
+ lghi %r13,.Lsie_skip - .Lsie_entry
clgr %r9,%r13
- jh .Lcleanup_sie_int
+ jhe .Lcleanup_sie_int
oi __LC_CPU_FLAGS+7, _CIF_MCCK_GUEST
.Lcleanup_sie_int:
BPENTER __SF_SIE_FLAGS(%r15),(_TIF_ISOLATE_BP|_TIF_ISOLATE_BP_GUEST)
diff --git a/arch/x86/Makefile b/arch/x86/Makefile
index 307529417021..cb5e8d39cac1 100644
--- a/arch/x86/Makefile
+++ b/arch/x86/Makefile
@@ -200,8 +200,9 @@ endif
KBUILD_LDFLAGS += -m elf_$(UTS_MACHINE)
ifdef CONFIG_LTO_CLANG
-KBUILD_LDFLAGS += -plugin-opt=-code-model=kernel \
- -plugin-opt=-stack-alignment=$(if $(CONFIG_X86_32),4,8)
+ifeq ($(shell test $(CONFIG_LLD_VERSION) -lt 130000; echo $$?),0)
+KBUILD_LDFLAGS += -plugin-opt=-stack-alignment=$(if $(CONFIG_X86_32),4,8)
+endif
endif
ifdef CONFIG_X86_NEED_RELOCS
diff --git a/arch/x86/events/intel/uncore_snbep.c b/arch/x86/events/intel/uncore_snbep.c
index 63f097289a84..3a75a2c601c2 100644
--- a/arch/x86/events/intel/uncore_snbep.c
+++ b/arch/x86/events/intel/uncore_snbep.c
@@ -1406,6 +1406,8 @@ static int snbep_pci2phy_map_init(int devid, int nodeid_loc, int idmap_loc, bool
die_id = i;
else
die_id = topology_phys_to_logical_pkg(i);
+ if (die_id < 0)
+ die_id = -ENODEV;
map->pbus_to_dieid[bus] = die_id;
break;
}
@@ -1452,14 +1454,14 @@ static int snbep_pci2phy_map_init(int devid, int nodeid_loc, int idmap_loc, bool
i = -1;
if (reverse) {
for (bus = 255; bus >= 0; bus--) {
- if (map->pbus_to_dieid[bus] >= 0)
+ if (map->pbus_to_dieid[bus] != -1)
i = map->pbus_to_dieid[bus];
else
map->pbus_to_dieid[bus] = i;
}
} else {
for (bus = 0; bus <= 255; bus++) {
- if (map->pbus_to_dieid[bus] >= 0)
+ if (map->pbus_to_dieid[bus] != -1)
i = map->pbus_to_dieid[bus];
else
map->pbus_to_dieid[bus] = i;
@@ -5097,9 +5099,10 @@ static struct intel_uncore_type icx_uncore_m2m = {
.perf_ctr = SNR_M2M_PCI_PMON_CTR0,
.event_ctl = SNR_M2M_PCI_PMON_CTL0,
.event_mask = SNBEP_PMON_RAW_EVENT_MASK,
+ .event_mask_ext = SNR_M2M_PCI_PMON_UMASK_EXT,
.box_ctl = SNR_M2M_PCI_PMON_BOX_CTL,
.ops = &snr_m2m_uncore_pci_ops,
- .format_group = &skx_uncore_format_group,
+ .format_group = &snr_m2m_uncore_format_group,
};
static struct attribute *icx_upi_uncore_formats_attr[] = {
diff --git a/arch/x86/kernel/cpu/perfctr-watchdog.c b/arch/x86/kernel/cpu/perfctr-watchdog.c
index 3ef5868ac588..7aecb2fc3186 100644
--- a/arch/x86/kernel/cpu/perfctr-watchdog.c
+++ b/arch/x86/kernel/cpu/perfctr-watchdog.c
@@ -63,7 +63,7 @@ static inline unsigned int nmi_perfctr_msr_to_bit(unsigned int msr)
case 15:
return msr - MSR_P4_BPU_PERFCTR0;
}
- fallthrough;
+ break;
case X86_VENDOR_ZHAOXIN:
case X86_VENDOR_CENTAUR:
return msr - MSR_ARCH_PERFMON_PERFCTR0;
@@ -96,7 +96,7 @@ static inline unsigned int nmi_evntsel_msr_to_bit(unsigned int msr)
case 15:
return msr - MSR_P4_BSU_ESCR0;
}
- fallthrough;
+ break;
case X86_VENDOR_ZHAOXIN:
case X86_VENDOR_CENTAUR:
return msr - MSR_ARCH_PERFMON_EVENTSEL0;
diff --git a/arch/x86/kvm/cpuid.c b/arch/x86/kvm/cpuid.c
index 9a48f138832d..b4da665bb892 100644
--- a/arch/x86/kvm/cpuid.c
+++ b/arch/x86/kvm/cpuid.c
@@ -655,6 +655,7 @@ static int __do_cpuid_func_emulated(struct kvm_cpuid_array *array, u32 func)
if (kvm_cpu_cap_has(X86_FEATURE_RDTSCP))
entry->ecx = F(RDPID);
++array->nent;
+ break;
default:
break;
}
diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c
index 8120e8614b92..17fa4ab1b834 100644
--- a/arch/x86/kvm/lapic.c
+++ b/arch/x86/kvm/lapic.c
@@ -1410,6 +1410,9 @@ int kvm_lapic_reg_read(struct kvm_lapic *apic, u32 offset, int len,
if (!apic_x2apic_mode(apic))
valid_reg_mask |= APIC_REG_MASK(APIC_ARBPRI);
+ if (alignment + len > 4)
+ return 1;
+
if (offset > 0x3f0 || !(valid_reg_mask & APIC_REG_MASK(offset)))
return 1;
@@ -1494,6 +1497,15 @@ static void limit_periodic_timer_frequency(struct kvm_lapic *apic)
static void cancel_hv_timer(struct kvm_lapic *apic);
+static void cancel_apic_timer(struct kvm_lapic *apic)
+{
+ hrtimer_cancel(&apic->lapic_timer.timer);
+ preempt_disable();
+ if (apic->lapic_timer.hv_timer_in_use)
+ cancel_hv_timer(apic);
+ preempt_enable();
+}
+
static void apic_update_lvtt(struct kvm_lapic *apic)
{
u32 timer_mode = kvm_lapic_get_reg(apic, APIC_LVTT) &
@@ -1502,11 +1514,7 @@ static void apic_update_lvtt(struct kvm_lapic *apic)
if (apic->lapic_timer.timer_mode != timer_mode) {
if (apic_lvtt_tscdeadline(apic) != (timer_mode ==
APIC_LVT_TIMER_TSCDEADLINE)) {
- hrtimer_cancel(&apic->lapic_timer.timer);
- preempt_disable();
- if (apic->lapic_timer.hv_timer_in_use)
- cancel_hv_timer(apic);
- preempt_enable();
+ cancel_apic_timer(apic);
kvm_lapic_set_reg(apic, APIC_TMICT, 0);
apic->lapic_timer.period = 0;
apic->lapic_timer.tscdeadline = 0;
@@ -2092,7 +2100,7 @@ int kvm_lapic_reg_write(struct kvm_lapic *apic, u32 reg, u32 val)
if (apic_lvtt_tscdeadline(apic))
break;
- hrtimer_cancel(&apic->lapic_timer.timer);
+ cancel_apic_timer(apic);
kvm_lapic_set_reg(apic, APIC_TMICT, val);
start_apic_timer(apic);
break;
diff --git a/arch/x86/kvm/mmu/mmu.c b/arch/x86/kvm/mmu/mmu.c
index 0144c40d09c7..8d5876dfc6b7 100644
--- a/arch/x86/kvm/mmu/mmu.c
+++ b/arch/x86/kvm/mmu/mmu.c
@@ -4739,9 +4739,33 @@ static void init_kvm_softmmu(struct kvm_vcpu *vcpu)
context->inject_page_fault = kvm_inject_page_fault;
}
+static union kvm_mmu_role kvm_calc_nested_mmu_role(struct kvm_vcpu *vcpu)
+{
+ union kvm_mmu_role role = kvm_calc_shadow_root_page_role_common(vcpu, false);
+
+ /*
+ * Nested MMUs are used only for walking L2's gva->gpa, they never have
+ * shadow pages of their own and so "direct" has no meaning. Set it
+ * to "true" to try to detect bogus usage of the nested MMU.
+ */
+ role.base.direct = true;
+
+ if (!is_paging(vcpu))
+ role.base.level = 0;
+ else if (is_long_mode(vcpu))
+ role.base.level = is_la57_mode(vcpu) ? PT64_ROOT_5LEVEL :
+ PT64_ROOT_4LEVEL;
+ else if (is_pae(vcpu))
+ role.base.level = PT32E_ROOT_LEVEL;
+ else
+ role.base.level = PT32_ROOT_LEVEL;
+
+ return role;
+}
+
static void init_kvm_nested_mmu(struct kvm_vcpu *vcpu)
{
- union kvm_mmu_role new_role = kvm_calc_mmu_role_common(vcpu, false);
+ union kvm_mmu_role new_role = kvm_calc_nested_mmu_role(vcpu);
struct kvm_mmu *g_context = &vcpu->arch.nested_mmu;
if (new_role.as_u64 == g_context->mmu_role.as_u64)
diff --git a/arch/x86/kvm/mmu/paging_tmpl.h b/arch/x86/kvm/mmu/paging_tmpl.h
index 70b7e44e3035..823a5919f9fa 100644
--- a/arch/x86/kvm/mmu/paging_tmpl.h
+++ b/arch/x86/kvm/mmu/paging_tmpl.h
@@ -90,8 +90,8 @@ struct guest_walker {
gpa_t pte_gpa[PT_MAX_FULL_LEVELS];
pt_element_t __user *ptep_user[PT_MAX_FULL_LEVELS];
bool pte_writable[PT_MAX_FULL_LEVELS];
- unsigned pt_access;
- unsigned pte_access;
+ unsigned int pt_access[PT_MAX_FULL_LEVELS];
+ unsigned int pte_access;
gfn_t gfn;
struct x86_exception fault;
};
@@ -418,13 +418,15 @@ retry_walk:
}
walker->ptes[walker->level - 1] = pte;
+
+ /* Convert to ACC_*_MASK flags for struct guest_walker. */
+ walker->pt_access[walker->level - 1] = FNAME(gpte_access)(pt_access ^ walk_nx_mask);
} while (!is_last_gpte(mmu, walker->level, pte));
pte_pkey = FNAME(gpte_pkeys)(vcpu, pte);
accessed_dirty = have_ad ? pte_access & PT_GUEST_ACCESSED_MASK : 0;
/* Convert to ACC_*_MASK flags for struct guest_walker. */
- walker->pt_access = FNAME(gpte_access)(pt_access ^ walk_nx_mask);
walker->pte_access = FNAME(gpte_access)(pte_access ^ walk_nx_mask);
errcode = permission_fault(vcpu, mmu, walker->pte_access, pte_pkey, access);
if (unlikely(errcode))
@@ -463,7 +465,8 @@ retry_walk:
}
pgprintk("%s: pte %llx pte_access %x pt_access %x\n",
- __func__, (u64)pte, walker->pte_access, walker->pt_access);
+ __func__, (u64)pte, walker->pte_access,
+ walker->pt_access[walker->level - 1]);
return 1;
error:
@@ -643,7 +646,7 @@ static int FNAME(fetch)(struct kvm_vcpu *vcpu, gpa_t addr,
bool huge_page_disallowed = exec && nx_huge_page_workaround_enabled;
struct kvm_mmu_page *sp = NULL;
struct kvm_shadow_walk_iterator it;
- unsigned direct_access, access = gw->pt_access;
+ unsigned int direct_access, access;
int top_level, level, req_level, ret;
gfn_t base_gfn = gw->gfn;
@@ -675,6 +678,7 @@ static int FNAME(fetch)(struct kvm_vcpu *vcpu, gpa_t addr,
sp = NULL;
if (!is_shadow_present_pte(*it.sptep)) {
table_gfn = gw->table_gfn[it.level - 2];
+ access = gw->pt_access[it.level - 2];
sp = kvm_mmu_get_page(vcpu, table_gfn, addr, it.level-1,
false, access);
}
diff --git a/arch/x86/kvm/svm/avic.c b/arch/x86/kvm/svm/avic.c
index 0e62e6a2438c..5e7e920113f3 100644
--- a/arch/x86/kvm/svm/avic.c
+++ b/arch/x86/kvm/svm/avic.c
@@ -221,7 +221,7 @@ static u64 *avic_get_physical_id_entry(struct kvm_vcpu *vcpu,
return &avic_physical_id_table[index];
}
-/**
+/*
* Note:
* AVIC hardware walks the nested page table to check permissions,
* but does not use the SPA address specified in the leaf page
@@ -764,7 +764,7 @@ out:
return ret;
}
-/**
+/*
* Note:
* The HW cannot support posting multicast/broadcast
* interrupts to a vCPU. So, we still use legacy interrupt
@@ -1005,7 +1005,7 @@ void avic_vcpu_put(struct kvm_vcpu *vcpu)
WRITE_ONCE(*(svm->avic_physical_id_cache), entry);
}
-/**
+/*
* This function is called during VCPU halt/unhalt.
*/
static void avic_set_running(struct kvm_vcpu *vcpu, bool is_run)
diff --git a/arch/x86/kvm/svm/sev.c b/arch/x86/kvm/svm/sev.c
index 5bc887e9a986..8d36f0c73071 100644
--- a/arch/x86/kvm/svm/sev.c
+++ b/arch/x86/kvm/svm/sev.c
@@ -199,9 +199,19 @@ static void sev_asid_free(struct kvm_sev_info *sev)
sev->misc_cg = NULL;
}
-static void sev_unbind_asid(struct kvm *kvm, unsigned int handle)
+static void sev_decommission(unsigned int handle)
{
struct sev_data_decommission decommission;
+
+ if (!handle)
+ return;
+
+ decommission.handle = handle;
+ sev_guest_decommission(&decommission, NULL);
+}
+
+static void sev_unbind_asid(struct kvm *kvm, unsigned int handle)
+{
struct sev_data_deactivate deactivate;
if (!handle)
@@ -214,9 +224,7 @@ static void sev_unbind_asid(struct kvm *kvm, unsigned int handle)
sev_guest_deactivate(&deactivate, NULL);
up_read(&sev_deactivate_lock);
- /* decommission handle */
- decommission.handle = handle;
- sev_guest_decommission(&decommission, NULL);
+ sev_decommission(handle);
}
static int sev_guest_init(struct kvm *kvm, struct kvm_sev_cmd *argp)
@@ -341,8 +349,10 @@ static int sev_launch_start(struct kvm *kvm, struct kvm_sev_cmd *argp)
/* Bind ASID to this guest */
ret = sev_bind_asid(kvm, start.handle, error);
- if (ret)
+ if (ret) {
+ sev_decommission(start.handle);
goto e_free_session;
+ }
/* return handle to userspace */
params.handle = start.handle;
@@ -1103,10 +1113,9 @@ __sev_send_start_query_session_length(struct kvm *kvm, struct kvm_sev_cmd *argp,
struct sev_data_send_start data;
int ret;
+ memset(&data, 0, sizeof(data));
data.handle = sev->handle;
ret = sev_issue_cmd(kvm, SEV_CMD_SEND_START, &data, &argp->error);
- if (ret < 0)
- return ret;
params->session_len = data.session_len;
if (copy_to_user((void __user *)(uintptr_t)argp->data, params,
@@ -1215,10 +1224,9 @@ __sev_send_update_data_query_lengths(struct kvm *kvm, struct kvm_sev_cmd *argp,
struct sev_data_send_update_data data;
int ret;
+ memset(&data, 0, sizeof(data));
data.handle = sev->handle;
ret = sev_issue_cmd(kvm, SEV_CMD_SEND_UPDATE_DATA, &data, &argp->error);
- if (ret < 0)
- return ret;
params->hdr_len = data.hdr_len;
params->trans_len = data.trans_len;
diff --git a/arch/x86/kvm/trace.h b/arch/x86/kvm/trace.h
index a61c015870e3..4f839148948b 100644
--- a/arch/x86/kvm/trace.h
+++ b/arch/x86/kvm/trace.h
@@ -1550,16 +1550,16 @@ TRACE_EVENT(kvm_nested_vmenter_failed,
TP_ARGS(msg, err),
TP_STRUCT__entry(
- __field(const char *, msg)
+ __string(msg, msg)
__field(u32, err)
),
TP_fast_assign(
- __entry->msg = msg;
+ __assign_str(msg, msg);
__entry->err = err;
),
- TP_printk("%s%s", __entry->msg, !__entry->err ? "" :
+ TP_printk("%s%s", __get_str(msg), !__entry->err ? "" :
__print_symbolic(__entry->err, VMX_VMENTER_INSTRUCTION_ERRORS))
);
diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
index 50b42d7a8a11..c2a779b688e6 100644
--- a/arch/x86/kvm/vmx/vmx.c
+++ b/arch/x86/kvm/vmx/vmx.c
@@ -6247,6 +6247,7 @@ void vmx_set_virtual_apic_mode(struct kvm_vcpu *vcpu)
switch (kvm_get_apic_mode(vcpu)) {
case LAPIC_MODE_INVALID:
WARN_ONCE(true, "Invalid local APIC state");
+ break;
case LAPIC_MODE_DISABLED:
break;
case LAPIC_MODE_XAPIC:
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index b594275d49b5..e0f4a46649d7 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -3072,6 +3072,19 @@ static void kvm_vcpu_flush_tlb_all(struct kvm_vcpu *vcpu)
static void kvm_vcpu_flush_tlb_guest(struct kvm_vcpu *vcpu)
{
++vcpu->stat.tlb_flush;
+
+ if (!tdp_enabled) {
+ /*
+ * A TLB flush on behalf of the guest is equivalent to
+ * INVPCID(all), toggling CR4.PGE, etc., which requires
+ * a forced sync of the shadow page tables. Unload the
+ * entire MMU here and the subsequent load will sync the
+ * shadow page tables, and also flush the TLB.
+ */
+ kvm_mmu_unload(vcpu);
+ return;
+ }
+
static_call(kvm_x86_tlb_flush_guest)(vcpu);
}
@@ -3101,9 +3114,11 @@ static void record_steal_time(struct kvm_vcpu *vcpu)
* expensive IPIs.
*/
if (guest_pv_has(vcpu, KVM_FEATURE_PV_TLB_FLUSH)) {
+ u8 st_preempted = xchg(&st->preempted, 0);
+
trace_kvm_pv_tlb_flush(vcpu->vcpu_id,
- st->preempted & KVM_VCPU_FLUSH_TLB);
- if (xchg(&st->preempted, 0) & KVM_VCPU_FLUSH_TLB)
+ st_preempted & KVM_VCPU_FLUSH_TLB);
+ if (st_preempted & KVM_VCPU_FLUSH_TLB)
kvm_vcpu_flush_tlb_guest(vcpu);
} else {
st->preempted = 0;
@@ -7091,7 +7106,10 @@ static unsigned emulator_get_hflags(struct x86_emulate_ctxt *ctxt)
static void emulator_set_hflags(struct x86_emulate_ctxt *ctxt, unsigned emul_flags)
{
- emul_to_vcpu(ctxt)->arch.hflags = emul_flags;
+ struct kvm_vcpu *vcpu = emul_to_vcpu(ctxt);
+
+ vcpu->arch.hflags = emul_flags;
+ kvm_mmu_reset_context(vcpu);
}
static int emulator_pre_leave_smm(struct x86_emulate_ctxt *ctxt,
@@ -8243,6 +8261,7 @@ void kvm_arch_exit(void)
kvm_x86_ops.hardware_enable = NULL;
kvm_mmu_module_exit();
free_percpu(user_return_msrs);
+ kmem_cache_destroy(x86_emulator_cache);
kmem_cache_destroy(x86_fpu_cache);
#ifdef CONFIG_KVM_XEN
static_key_deferred_flush(&kvm_xen_enabled);
diff --git a/arch/x86/pci/fixup.c b/arch/x86/pci/fixup.c
index 02dc64625e64..2edd86649468 100644
--- a/arch/x86/pci/fixup.c
+++ b/arch/x86/pci/fixup.c
@@ -779,4 +779,48 @@ DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_AMD, 0x1571, pci_amd_enable_64bit_bar);
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_AMD, 0x15b1, pci_amd_enable_64bit_bar);
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_AMD, 0x1601, pci_amd_enable_64bit_bar);
+#define RS690_LOWER_TOP_OF_DRAM2 0x30
+#define RS690_LOWER_TOP_OF_DRAM2_VALID 0x1
+#define RS690_UPPER_TOP_OF_DRAM2 0x31
+#define RS690_HTIU_NB_INDEX 0xA8
+#define RS690_HTIU_NB_INDEX_WR_ENABLE 0x100
+#define RS690_HTIU_NB_DATA 0xAC
+
+/*
+ * Some BIOS implementations support RAM above 4GB, but do not configure the
+ * PCI host to respond to bus master accesses for these addresses. These
+ * implementations set the TOP_OF_DRAM_SLOT1 register correctly, so PCI DMA
+ * works as expected for addresses below 4GB.
+ *
+ * Reference: "AMD RS690 ASIC Family Register Reference Guide" (pg. 2-57)
+ * https://www.amd.com/system/files/TechDocs/43372_rs690_rrg_3.00o.pdf
+ */
+static void rs690_fix_64bit_dma(struct pci_dev *pdev)
+{
+ u32 val = 0;
+ phys_addr_t top_of_dram = __pa(high_memory - 1) + 1;
+
+ if (top_of_dram <= (1ULL << 32))
+ return;
+
+ pci_write_config_dword(pdev, RS690_HTIU_NB_INDEX,
+ RS690_LOWER_TOP_OF_DRAM2);
+ pci_read_config_dword(pdev, RS690_HTIU_NB_DATA, &val);
+
+ if (val)
+ return;
+
+ pci_info(pdev, "Adjusting top of DRAM to %pa for 64-bit DMA support\n", &top_of_dram);
+
+ pci_write_config_dword(pdev, RS690_HTIU_NB_INDEX,
+ RS690_UPPER_TOP_OF_DRAM2 | RS690_HTIU_NB_INDEX_WR_ENABLE);
+ pci_write_config_dword(pdev, RS690_HTIU_NB_DATA, top_of_dram >> 32);
+
+ pci_write_config_dword(pdev, RS690_HTIU_NB_INDEX,
+ RS690_LOWER_TOP_OF_DRAM2 | RS690_HTIU_NB_INDEX_WR_ENABLE);
+ pci_write_config_dword(pdev, RS690_HTIU_NB_DATA,
+ top_of_dram | RS690_LOWER_TOP_OF_DRAM2_VALID);
+}
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x7910, rs690_fix_64bit_dma);
+
#endif