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2022-10-13selftests/bpf: Use sys_pidfd_open() helper when possibleHou Tao
SYS_pidfd_open may be undefined for old glibc, so using sys_pidfd_open() helper defined in task_local_storage_helpers.h instead to fix potential build failure. And according to commit 7615d9e1780e ("arch: wire-up pidfd_open()"), the syscall number of pidfd_open is always 434 except for alpha architure, so update the definition of __NR_pidfd_open accordingly. Signed-off-by: Hou Tao <houtao1@huawei.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20221011071249.3471760-1-houtao@huaweicloud.com
2022-10-13Merge branch 'libbpf: fix fuzzer-reported issues'Andrii Nakryiko
Shung-Hsi Yu says: ==================== Hi, this patch set fixes several fuzzer-reported issues of libbpf when dealing with (malformed) BPF object file: - patch #1 fix out-of-bound heap write reported by oss-fuzz (currently incorrectly marked as fixed) - patch #2 and #3 fix null-pointer dereference found by locally-run fuzzer. v2: - Rebase to bpf-next - Move elf_getshdrnum() closer to where it's result is used in patch #1, as suggested by Andrii - Touch up the comment in bpf_object__elf_collect(), replacing mention of e_shnum with elf_getshdrnum() - Minor wording change in commit message of patch #1 to for better readability - Remove extra note that comes after commit message in patch #1 v1: https://lore.kernel.org/bpf/20221007174816.17536-1-shung-hsi.yu@suse.com/ ==================== Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
2022-10-13Merge branch 'Fix bugs found by ASAN when running selftests'Andrii Nakryiko
Xu Kuohai says: ==================== From: Xu Kuohai <xukuohai@huawei.com> This series fixes bugs found by ASAN when running bpf selftests on arm64. v4: - Address Andrii's suggestions v3: https://lore.kernel.org/bpf/5311e154-c2d4-91a5-ccb8-f5adede579ed@huawei.com - Fix error failure of case test_xdp_adjust_tail_grow exposed by this series v2: https://lore.kernel.org/bpf/20221010070454.577433-1-xukuohai@huaweicloud.com - Rebase and fix conflict v1: https://lore.kernel.org/bpf/20221009131830.395569-1-xukuohai@huaweicloud.com ==================== Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
2022-10-13libbpf: Fix null-pointer dereference in find_prog_by_sec_insn()Shung-Hsi Yu
When there are no program sections, obj->programs is left unallocated, and find_prog_by_sec_insn()'s search lands on &obj->programs[0] == NULL, and will cause null-pointer dereference in the following access to prog->sec_idx. Guard the search with obj->nr_programs similar to what's being done in __bpf_program__iter() to prevent null-pointer access from happening. Fixes: db2b8b06423c ("libbpf: Support CO-RE relocations for multi-prog sections") Signed-off-by: Shung-Hsi Yu <shung-hsi.yu@suse.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20221012022353.7350-4-shung-hsi.yu@suse.com
2022-10-13libbpf: Deal with section with no data gracefullyShung-Hsi Yu
ELF section data pointer returned by libelf may be NULL (if section has SHT_NOBITS), so null check section data pointer before attempting to copy license and kversion section. Fixes: cb1e5e961991 ("bpf tools: Collect version and license from ELF sections") Signed-off-by: Shung-Hsi Yu <shung-hsi.yu@suse.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20221012022353.7350-3-shung-hsi.yu@suse.com
2022-10-13libbpf: Use elf_getshdrnum() instead of e_shnumShung-Hsi Yu
This commit replace e_shnum with the elf_getshdrnum() helper to fix two oss-fuzz-reported heap-buffer overflow in __bpf_object__open. Both reports are incorrectly marked as fixed and while still being reproducible in the latest libbpf. # clusterfuzz-testcase-minimized-bpf-object-fuzzer-5747922482888704 libbpf: loading object 'fuzz-object' from buffer libbpf: sec_cnt is 0 libbpf: elf: section(1) .data, size 0, link 538976288, flags 2020202020202020, type=2 libbpf: elf: section(2) .data, size 32, link 538976288, flags 202020202020ff20, type=1 ================================================================= ==13==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x6020000000c0 at pc 0x0000005a7b46 bp 0x7ffd12214af0 sp 0x7ffd12214ae8 WRITE of size 4 at 0x6020000000c0 thread T0 SCARINESS: 46 (4-byte-write-heap-buffer-overflow-far-from-bounds) #0 0x5a7b45 in bpf_object__elf_collect /src/libbpf/src/libbpf.c:3414:24 #1 0x5733c0 in bpf_object_open /src/libbpf/src/libbpf.c:7223:16 #2 0x5739fd in bpf_object__open_mem /src/libbpf/src/libbpf.c:7263:20 ... The issue lie in libbpf's direct use of e_shnum field in ELF header as the section header count. Where as libelf implemented an extra logic that, when e_shnum == 0 && e_shoff != 0, will use sh_size member of the initial section header as the real section header count (part of ELF spec to accommodate situation where section header counter is larger than SHN_LORESERVE). The above inconsistency lead to libbpf writing into a zero-entry calloc area. So intead of using e_shnum directly, use the elf_getshdrnum() helper provided by libelf to retrieve the section header counter into sec_cnt. Fixes: 0d6988e16a12 ("libbpf: Fix section counting logic") Fixes: 25bbbd7a444b ("libbpf: Remove assumptions about uniqueness of .rodata/.data/.bss maps") Signed-off-by: Shung-Hsi Yu <shung-hsi.yu@suse.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=40868 Link: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=40957 Link: https://lore.kernel.org/bpf/20221012022353.7350-2-shung-hsi.yu@suse.com
2022-10-13selftest/bpf: Fix error usage of ASSERT_OK in xdp_adjust_tail.cXu Kuohai
xdp_adjust_tail.c calls ASSERT_OK() to check the return value of bpf_prog_test_load(), but the condition is not correct. Fix it. Fixes: 791cad025051 ("bpf: selftests: Get rid of CHECK macro in xdp_adjust_tail.c") Signed-off-by: Xu Kuohai <xukuohai@huawei.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Acked-by: Martin KaFai Lau <martin.lau@kernel.org> Link: https://lore.kernel.org/bpf/20221011120108.782373-7-xukuohai@huaweicloud.com
2022-10-13selftests/bpf: Fix error failure of case test_xdp_adjust_tail_growXu Kuohai
test_xdp_adjust_tail_grow failed with ipv6: test_xdp_adjust_tail_grow:FAIL:ipv6 unexpected error: -28 (errno 28) The reason is that this test case tests ipv4 before ipv6, and when ipv4 test finished, topts.data_size_out was set to 54, which is smaller than the ipv6 output data size 114, so ipv6 test fails with NOSPC error. Fix it by reset topts.data_size_out to sizeof(buf) before testing ipv6. Fixes: 04fcb5f9a104 ("selftests/bpf: Migrate from bpf_prog_test_run") Signed-off-by: Xu Kuohai <xukuohai@huawei.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Acked-by: Martin KaFai Lau <martin.lau@kernel.org> Link: https://lore.kernel.org/bpf/20221011120108.782373-6-xukuohai@huaweicloud.com
2022-10-13selftest/bpf: Fix memory leak in kprobe_multi_testXu Kuohai
The get_syms() function in kprobe_multi_test.c does not free the string memory allocated by sscanf correctly. Fix it. Fixes: 5b6c7e5c4434 ("selftests/bpf: Add attach bench test") Signed-off-by: Xu Kuohai <xukuohai@huawei.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Acked-by: Jiri Olsa <jolsa@kernel.org> Acked-by: Martin KaFai Lau <martin.lau@kernel.org> Link: https://lore.kernel.org/bpf/20221011120108.782373-5-xukuohai@huaweicloud.com
2022-10-13selftests/bpf: Fix memory leak caused by not destroying skeletonXu Kuohai
Some test cases does not destroy skeleton object correctly, causing ASAN to report memory leak warning. Fix it. Fixes: 0ef6740e9777 ("selftests/bpf: Add tests for kptr_ref refcounting") Fixes: 1642a3945e22 ("selftests/bpf: Add struct argument tests with fentry/fexit programs.") Signed-off-by: Xu Kuohai <xukuohai@huawei.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Acked-by: Martin KaFai Lau <martin.lau@kernel.org> Link: https://lore.kernel.org/bpf/20221011120108.782373-4-xukuohai@huaweicloud.com
2022-10-13libbpf: Fix memory leak in parse_usdt_arg()Xu Kuohai
In the arm64 version of parse_usdt_arg(), when sscanf returns 2, reg_name is allocated but not freed. Fix it. Fixes: 0f8619929c57 ("libbpf: Usdt aarch64 arg parsing support") Signed-off-by: Xu Kuohai <xukuohai@huawei.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Acked-by: Martin KaFai Lau <martin.lau@kernel.org> Link: https://lore.kernel.org/bpf/20221011120108.782373-3-xukuohai@huaweicloud.com
2022-10-13libbpf: Fix use-after-free in btf_dump_name_dupsXu Kuohai
ASAN reports an use-after-free in btf_dump_name_dups: ERROR: AddressSanitizer: heap-use-after-free on address 0xffff927006db at pc 0xaaaab5dfb618 bp 0xffffdd89b890 sp 0xffffdd89b928 READ of size 2 at 0xffff927006db thread T0 #0 0xaaaab5dfb614 in __interceptor_strcmp.part.0 (test_progs+0x21b614) #1 0xaaaab635f144 in str_equal_fn tools/lib/bpf/btf_dump.c:127 #2 0xaaaab635e3e0 in hashmap_find_entry tools/lib/bpf/hashmap.c:143 #3 0xaaaab635e72c in hashmap__find tools/lib/bpf/hashmap.c:212 #4 0xaaaab6362258 in btf_dump_name_dups tools/lib/bpf/btf_dump.c:1525 #5 0xaaaab636240c in btf_dump_resolve_name tools/lib/bpf/btf_dump.c:1552 #6 0xaaaab6362598 in btf_dump_type_name tools/lib/bpf/btf_dump.c:1567 #7 0xaaaab6360b48 in btf_dump_emit_struct_def tools/lib/bpf/btf_dump.c:912 #8 0xaaaab6360630 in btf_dump_emit_type tools/lib/bpf/btf_dump.c:798 #9 0xaaaab635f720 in btf_dump__dump_type tools/lib/bpf/btf_dump.c:282 #10 0xaaaab608523c in test_btf_dump_incremental tools/testing/selftests/bpf/prog_tests/btf_dump.c:236 #11 0xaaaab6097530 in test_btf_dump tools/testing/selftests/bpf/prog_tests/btf_dump.c:875 #12 0xaaaab6314ed0 in run_one_test tools/testing/selftests/bpf/test_progs.c:1062 #13 0xaaaab631a0a8 in main tools/testing/selftests/bpf/test_progs.c:1697 #14 0xffff9676d214 in __libc_start_main ../csu/libc-start.c:308 #15 0xaaaab5d65990 (test_progs+0x185990) 0xffff927006db is located 11 bytes inside of 16-byte region [0xffff927006d0,0xffff927006e0) freed by thread T0 here: #0 0xaaaab5e2c7c4 in realloc (test_progs+0x24c7c4) #1 0xaaaab634f4a0 in libbpf_reallocarray tools/lib/bpf/libbpf_internal.h:191 #2 0xaaaab634f840 in libbpf_add_mem tools/lib/bpf/btf.c:163 #3 0xaaaab636643c in strset_add_str_mem tools/lib/bpf/strset.c:106 #4 0xaaaab6366560 in strset__add_str tools/lib/bpf/strset.c:157 #5 0xaaaab6352d70 in btf__add_str tools/lib/bpf/btf.c:1519 #6 0xaaaab6353e10 in btf__add_field tools/lib/bpf/btf.c:2032 #7 0xaaaab6084fcc in test_btf_dump_incremental tools/testing/selftests/bpf/prog_tests/btf_dump.c:232 #8 0xaaaab6097530 in test_btf_dump tools/testing/selftests/bpf/prog_tests/btf_dump.c:875 #9 0xaaaab6314ed0 in run_one_test tools/testing/selftests/bpf/test_progs.c:1062 #10 0xaaaab631a0a8 in main tools/testing/selftests/bpf/test_progs.c:1697 #11 0xffff9676d214 in __libc_start_main ../csu/libc-start.c:308 #12 0xaaaab5d65990 (test_progs+0x185990) previously allocated by thread T0 here: #0 0xaaaab5e2c7c4 in realloc (test_progs+0x24c7c4) #1 0xaaaab634f4a0 in libbpf_reallocarray tools/lib/bpf/libbpf_internal.h:191 #2 0xaaaab634f840 in libbpf_add_mem tools/lib/bpf/btf.c:163 #3 0xaaaab636643c in strset_add_str_mem tools/lib/bpf/strset.c:106 #4 0xaaaab6366560 in strset__add_str tools/lib/bpf/strset.c:157 #5 0xaaaab6352d70 in btf__add_str tools/lib/bpf/btf.c:1519 #6 0xaaaab6353ff0 in btf_add_enum_common tools/lib/bpf/btf.c:2070 #7 0xaaaab6354080 in btf__add_enum tools/lib/bpf/btf.c:2102 #8 0xaaaab6082f50 in test_btf_dump_incremental tools/testing/selftests/bpf/prog_tests/btf_dump.c:162 #9 0xaaaab6097530 in test_btf_dump tools/testing/selftests/bpf/prog_tests/btf_dump.c:875 #10 0xaaaab6314ed0 in run_one_test tools/testing/selftests/bpf/test_progs.c:1062 #11 0xaaaab631a0a8 in main tools/testing/selftests/bpf/test_progs.c:1697 #12 0xffff9676d214 in __libc_start_main ../csu/libc-start.c:308 #13 0xaaaab5d65990 (test_progs+0x185990) The reason is that the key stored in hash table name_map is a string address, and the string memory is allocated by realloc() function, when the memory is resized by realloc() later, the old memory may be freed, so the address stored in name_map references to a freed memory, causing use-after-free. Fix it by storing duplicated string address in name_map. Fixes: 919d2b1dbb07 ("libbpf: Allow modification of BTF and add btf__add_str API") Signed-off-by: Xu Kuohai <xukuohai@huawei.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Acked-by: Martin KaFai Lau <martin.lau@kernel.org> Link: https://lore.kernel.org/bpf/20221011120108.782373-2-xukuohai@huaweicloud.com
2022-10-13selftests/bpf: S/iptables/iptables-legacy/ in the bpf_nf and xdp_synproxy testMartin KaFai Lau
The recent vm image in CI has reported error in selftests that use the iptables command. Manu Bretelle has pointed out the difference in the recent vm image that the iptables is sym-linked to the iptables-nft. With this knowledge, I can also reproduce the CI error by manually running with the 'iptables-nft'. This patch is to replace the iptables command with iptables-legacy to unblock the CI tests. Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Acked-by: David Vernet <void@manifault.com> Link: https://lore.kernel.org/bpf/20221012221235.3529719-1-martin.lau@linux.dev
2022-10-11selftests/bpf: Alphabetize DENYLISTsDavid Vernet
The DENYLIST and DENYLIST.s390x files are used to specify testcases which should not be run on CI. Currently, testcases are appended to the end of these files as needed. This can make it a pain to resolve merge conflicts. This patch alphabetizes the DENYLIST files to ease this burden. Signed-off-by: David Vernet <void@manifault.com> Acked-by: Daniel Müller <deso@posteo.net> Link: https://lore.kernel.org/r/20221011165255.774014-1-void@manifault.com Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
2022-10-10Merge branch 'Add _opts variant for bpf_*_get_fd_by_id()'Andrii Nakryiko
Roberto Sassu says: ==================== From: Roberto Sassu <roberto.sassu@huawei.com> Add the _opts variant for bpf_*_get_fd_by_id() functions, to be able to pass to the kernel more options, when requesting a fd of an eBPF object. Pass the options through a newly introduced structure, bpf_get_fd_by_id_opts, which currently contains open_flags (the other two members are for compatibility and for padding). open_flags allows the caller to request specific permissions to access a map (e.g. read-only). This is useful for example in the situation where a map is write-protected. Besides patches 2-6, which introduce the new variants and the data structure, patch 1 fixes the LIBBPF_1.0.0 declaration in libbpf.map. Changelog v1: - Don't CC stable kernel mailing list for patch 1 (suggested by Andrii) - Rename bpf_get_fd_opts struct to bpf_get_fd_by_id_opts (suggested by Andrii) - Move declaration of _opts variants after non-opts variants (suggested by Andrii) - Correctly initialize bpf_map_info, fix style issues, use map from skeleton, check valid fd in the test (suggested by Andrii) - Rename libbpf_get_fd_opts test to libbpf_get_fd_by_id_opts ==================== Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
2022-10-10selftests/bpf: Add tests for _opts variants of bpf_*_get_fd_by_id()Roberto Sassu
Introduce the data_input map, write-protected with a small eBPF program implementing the lsm/bpf_map hook. Then, ensure that bpf_map_get_fd_by_id() and bpf_map_get_fd_by_id_opts() with NULL opts don't succeed due to requesting read-write access to the write-protected map. Also, ensure that bpf_map_get_fd_by_id_opts() with open_flags in opts set to BPF_F_RDONLY instead succeeds. After obtaining a read-only fd, ensure that only map lookup succeeds and not update. Ensure that update works only with the read-write fd obtained at program loading time, when the write protection was not yet enabled. Finally, ensure that the other _opts variants of bpf_*_get_fd_by_id() don't work if the BPF_F_RDONLY flag is set in opts (due to the kernel not handling the open_flags member of bpf_attr). Signed-off-by: Roberto Sassu <roberto.sassu@huawei.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20221006110736.84253-7-roberto.sassu@huaweicloud.com
2022-10-10libbpf: Introduce bpf_link_get_fd_by_id_opts()Roberto Sassu
Introduce bpf_link_get_fd_by_id_opts(), for symmetry with bpf_map_get_fd_by_id_opts(), to let the caller pass the newly introduced data structure bpf_get_fd_by_id_opts. Keep the existing bpf_link_get_fd_by_id(), and call bpf_link_get_fd_by_id_opts() with NULL as opts argument, to prevent setting open_flags. Currently, the kernel does not support non-zero open_flags for bpf_link_get_fd_by_id_opts(), and a call with them will result in an error returned by the bpf() system call. The caller should always pass zero open_flags. Signed-off-by: Roberto Sassu <roberto.sassu@huawei.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20221006110736.84253-6-roberto.sassu@huaweicloud.com
2022-10-10libbpf: Introduce bpf_btf_get_fd_by_id_opts()Roberto Sassu
Introduce bpf_btf_get_fd_by_id_opts(), for symmetry with bpf_map_get_fd_by_id_opts(), to let the caller pass the newly introduced data structure bpf_get_fd_by_id_opts. Keep the existing bpf_btf_get_fd_by_id(), and call bpf_btf_get_fd_by_id_opts() with NULL as opts argument, to prevent setting open_flags. Currently, the kernel does not support non-zero open_flags for bpf_btf_get_fd_by_id_opts(), and a call with them will result in an error returned by the bpf() system call. The caller should always pass zero open_flags. Signed-off-by: Roberto Sassu <roberto.sassu@huawei.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20221006110736.84253-5-roberto.sassu@huaweicloud.com
2022-10-10libbpf: Introduce bpf_prog_get_fd_by_id_opts()Roberto Sassu
Introduce bpf_prog_get_fd_by_id_opts(), for symmetry with bpf_map_get_fd_by_id_opts(), to let the caller pass the newly introduced data structure bpf_get_fd_by_id_opts. Keep the existing bpf_prog_get_fd_by_id(), and call bpf_prog_get_fd_by_id_opts() with NULL as opts argument, to prevent setting open_flags. Currently, the kernel does not support non-zero open_flags for bpf_prog_get_fd_by_id_opts(), and a call with them will result in an error returned by the bpf() system call. The caller should always pass zero open_flags. Signed-off-by: Roberto Sassu <roberto.sassu@huawei.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20221006110736.84253-4-roberto.sassu@huaweicloud.com
2022-10-10libbpf: Introduce bpf_get_fd_by_id_opts and bpf_map_get_fd_by_id_opts()Roberto Sassu
Define a new data structure called bpf_get_fd_by_id_opts, with the member open_flags, to be used by callers of the _opts variants of bpf_*_get_fd_by_id() to specify the permissions needed for the file descriptor to be obtained. Also, introduce bpf_map_get_fd_by_id_opts(), to let the caller pass a bpf_get_fd_by_id_opts structure. Finally, keep the existing bpf_map_get_fd_by_id(), and call bpf_map_get_fd_by_id_opts() with NULL as opts argument, to request read-write permissions (current behavior). Signed-off-by: Roberto Sassu <roberto.sassu@huawei.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20221006110736.84253-3-roberto.sassu@huaweicloud.com
2022-10-10libbpf: Fix LIBBPF_1.0.0 declaration in libbpf.mapRoberto Sassu
Add the missing LIBBPF_0.8.0 at the end of the LIBBPF_1.0.0 declaration, similarly to other version declarations. Signed-off-by: Roberto Sassu <roberto.sassu@huawei.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20221006110736.84253-2-roberto.sassu@huaweicloud.com
2022-10-07bpf, x64: Remove unnecessary check on existence of SSE2Jie Meng
SSE2 and hence lfence are architectural in x86-64 and no need to check whether they're supported in CPU. SSE2's CPUID flag is still set to maintain backward compatibility with older code or code shared with x86, but bpf_jit_comp.c is compiled under x86-64 exclusively so the check is redundant. Signed-off-by: Jie Meng <jmeng@fb.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: KP Singh <kpsingh@kernel.org> Link: https://lore.kernel.org/bpf/20221005170039.3936894-1-jmeng@fb.com
2022-10-06selftests/bpf: Add missing bpf_iter_vma_offset__destroy callJiri Olsa
Adding missing bpf_iter_vma_offset__destroy call and using in-skeletin link pointer so we don't need extra bpf_link__destroy call. Fixes: b3e1331eb925 ("selftests/bpf: Test parameterized task BPF iterators.") Cc: Kui-Feng Lee <kuifeng@fb.com> Signed-off-by: Jiri Olsa <jolsa@kernel.org> Link: https://lore.kernel.org/r/20221006083106.117987-1-jolsa@kernel.org Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
2022-10-06selftests/bpf: Add selftest deny_namespace to s390x deny listYonghong Song
BPF CI reported that selftest deny_namespace failed with s390x. test_unpriv_userns_create_no_bpf:PASS:no-bpf unpriv new user ns 0 nsec test_deny_namespace:PASS:skel load 0 nsec libbpf: prog 'test_userns_create': failed to attach: ERROR: strerror_r(-524)=22 libbpf: prog 'test_userns_create': failed to auto-attach: -524 test_deny_namespace:FAIL:attach unexpected error: -524 (errno 524) #57/1 deny_namespace/unpriv_userns_create_no_bpf:FAIL #57 deny_namespace:FAIL BPF program test_userns_create is a BPF LSM type program which is based on trampoline and s390x does not support s390x. Let add the test to x390x deny list to avoid this failure in BPF CI. Signed-off-by: Yonghong Song <yhs@fb.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Link: https://lore.kernel.org/r/20221006053429.3549165-1-yhs@fb.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2022-10-06scripts/bpf_doc.py: update logic to not assume sequential enum valuesAndrii Nakryiko
Relax bpf_doc.py's expectation of all BPF_FUNC_xxx enumerators having sequential values increasing by one. Instead, only make sure that relative order of BPF helper descriptions in comments matches enumerators definitions order. Also additionally make sure that helper IDs are not duplicated. And also make sure that for cases when we have multiple descriptions for the same BPF helper (e.g., for bpf_get_socket_cookie()), all such descriptions are grouped together. Such checks should capture all the same (and more) issues in upstream UAPI headers, but also handle backported kernels correctly. Reported-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Reviewed-by: Quentin Monnet <quentin@isovalent.com> Link: https://lore.kernel.org/r/20221006042452.2089843-2-andrii@kernel.org Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2022-10-06bpf: explicitly define BPF_FUNC_xxx integer valuesAndrii Nakryiko
Historically enum bpf_func_id's BPF_FUNC_xxx enumerators relied on implicit sequential values being assigned by compiler. This is convenient, as new BPF helpers are always added at the very end, but it also has its downsides, some of them being: - with over 200 helpers now it's very hard to know what's each helper's ID, which is often important to know when working with BPF assembly (e.g., by dumping raw bpf assembly instructions with llvm-objdump -d command). it's possible to work around this by looking into vmlinux.h, dumping /sys/btf/kernel/vmlinux, looking at libbpf-provided bpf_helper_defs.h, etc. But it always feels like an unnecessary step and one should be able to quickly figure this out from UAPI header. - when backporting and cherry-picking only some BPF helpers onto older kernels it's important to be able to skip some enum values for helpers that weren't backported, but preserve absolute integer IDs to keep BPF helper IDs stable so that BPF programs stay portable across upstream and backported kernels. While neither problem is insurmountable, they come up frequently enough and are annoying enough to warrant improving the situation. And for the backporting the problem can easily go unnoticed for a while, especially if backport is done with people not very familiar with BPF subsystem overall. Anyways, it's easy to fix this by making sure that __BPF_FUNC_MAPPER macro provides explicit helper IDs. Unfortunately that would potentially break existing users that use UAPI-exposed __BPF_FUNC_MAPPER and are expected to pass macro that accepts only symbolic helper identifier (e.g., map_lookup_elem for bpf_map_lookup_elem() helper). As such, we need to introduce a new macro (___BPF_FUNC_MAPPER) which would specify both identifier and integer ID, but in such a way as to allow existing __BPF_FUNC_MAPPER be expressed in terms of new ___BPF_FUNC_MAPPER macro. And that's what this patch is doing. To avoid duplication and allow __BPF_FUNC_MAPPER stay *exactly* the same, ___BPF_FUNC_MAPPER accepts arbitrary "context" arguments, which can be used to pass any extra macros, arguments, and whatnot. In our case we use this to pass original user-provided macro that expects single argument and __BPF_FUNC_MAPPER is using it's own three-argument __BPF_FUNC_MAPPER_APPLY intermediate macro to impedance-match new and old "callback" macros. Once we resolve this, we use new ___BPF_FUNC_MAPPER to define enum bpf_func_id with explicit values. The other users of __BPF_FUNC_MAPPER in kernel (namely in kernel/bpf/disasm.c) are kept exactly the same both as demonstration that backwards compat works, but also to avoid unnecessary code churn. Note that new ___BPF_FUNC_MAPPER() doesn't forcefully insert comma between values, as that might not be appropriate in all possible cases where ___BPF_FUNC_MAPPER might be used by users. This doesn't reduce usability, as it's trivial to insert that comma inside "callback" macro. To validate all the manually specified IDs are exactly right, we used BTF to compare before and after values: $ bpftool btf dump file ~/linux-build/default/vmlinux | rg bpf_func_id -A 211 > after.txt $ git stash # stach UAPI changes $ make -j90 ... re-building kernel without UAPI changes ... $ bpftool btf dump file ~/linux-build/default/vmlinux | rg bpf_func_id -A 211 > before.txt $ diff -u before.txt after.txt --- before.txt 2022-10-05 10:48:18.119195916 -0700 +++ after.txt 2022-10-05 10:46:49.446615025 -0700 @@ -1,4 +1,4 @@ -[14576] ENUM 'bpf_func_id' encoding=UNSIGNED size=4 vlen=211 +[9560] ENUM 'bpf_func_id' encoding=UNSIGNED size=4 vlen=211 'BPF_FUNC_unspec' val=0 'BPF_FUNC_map_lookup_elem' val=1 'BPF_FUNC_map_update_elem' val=2 As can be seen from diff above, the only thing that changed was resulting BTF type ID of ENUM bpf_func_id, not any of the enumerators, their names or integer values. The only other place that needed fixing was scripts/bpf_doc.py used to generate man pages and bpf_helper_defs.h header for libbpf and selftests. That script is tightly-coupled to exact shape of ___BPF_FUNC_MAPPER macro definition, so had to be trivially adapted. Cc: Quentin Monnet <quentin@isovalent.com> Reported-by: Andrea Terzolo <andrea.terzolo@polito.it> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Reviewed-by: Quentin Monnet <quentin@isovalent.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Acked-by: Toke Høiland-Jørgensen <toke@redhat.com> Link: https://lore.kernel.org/r/20221006042452.2089843-1-andrii@kernel.org Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2022-10-05selftests/bpf: add BPF object fixup step to veristatAndrii Nakryiko
Add a step to attempt to "fix up" BPF object file to make it possible to successfully load it. E.g., set non-zero size for BPF maps that expect max_entries set, but BPF object file itself doesn't have declarative max_entries values specified. Another issue was with automatic map pinning. Pinning has no effect on BPF verification process itself but can interfere when validating multiple related programs and object files, so veristat disabled all the pinning explicitly. In the future more such fix up heuristics could be added to accommodate common patterns encountered in practice. Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/r/20221005161450.1064469-3-andrii@kernel.org Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2022-10-05selftests/bpf: avoid reporting +100% difference in veristat for actual 0%Andrii Nakryiko
In special case when both base and comparison values are 0, veristat currently reports "+0 (+100%)" difference, which is quite confusing. Fix it up to be "+0 (+0%)". Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/r/20221005161450.1064469-2-andrii@kernel.org Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2022-10-05selftests/bpf: allow requesting log level 2 in test_verifierAndrii Nakryiko
Log level 1 on successfully verified programs are basically equivalent to log level 4 (stats-only), so it's useful to be able to request more verbose logs at log level 2. Teach test_verifier to recognize -vv as "very verbose" mode switch and use log level 2 in such mode. Also force verifier stats regradless of -v or -vv, they are very minimal and useful to be always emitted in verbose mode. Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/r/20221005161450.1064469-1-andrii@kernel.org Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2022-10-05selftests/bpf: Test btf dump for struct with padding only fieldsEduard Zingerman
Structures with zero regular fields but some padding constitute a special case in btf_dump.c:btf_dump_emit_struct_def with regards to newline before closing '}'. Signed-off-by: Eduard Zingerman <eddyz87@gmail.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20221001104425.415768-2-eddyz87@gmail.com
2022-10-05bpftool: Print newline before '}' for struct with padding only fieldsEduard Zingerman
btf_dump_emit_struct_def attempts to print empty structures at a single line, e.g. `struct empty {}`. However, it has to account for a case when there are no regular but some padding fields in the struct. In such case `vlen` would be zero, but size would be non-zero. E.g. here is struct bpf_timer from vmlinux.h before this patch: struct bpf_timer { long: 64; long: 64;}; And after this patch: struct bpf_dynptr { long: 64; long: 64; }; Signed-off-by: Eduard Zingerman <eddyz87@gmail.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20221001104425.415768-1-eddyz87@gmail.com
2022-10-04Merge tag 'net-next-6.1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next Pull networking updates from Jakub Kicinski: "Core: - Introduce and use a single page frag cache for allocating small skb heads, clawing back the 10-20% performance regression in UDP flood test from previous fixes. - Run packets which already went thru HW coalescing thru SW GRO. This significantly improves TCP segment coalescing and simplifies deployments as different workloads benefit from HW or SW GRO. - Shrink the size of the base zero-copy send structure. - Move TCP init under a new slow / sleepable version of DO_ONCE(). BPF: - Add BPF-specific, any-context-safe memory allocator. - Add helpers/kfuncs for PKCS#7 signature verification from BPF programs. - Define a new map type and related helpers for user space -> kernel communication over a ring buffer (BPF_MAP_TYPE_USER_RINGBUF). - Allow targeting BPF iterators to loop through resources of one task/thread. - Add ability to call selected destructive functions. Expose crash_kexec() to allow BPF to trigger a kernel dump. Use CAP_SYS_BOOT check on the loading process to judge permissions. - Enable BPF to collect custom hierarchical cgroup stats efficiently by integrating with the rstat framework. - Support struct arguments for trampoline based programs. Only structs with size <= 16B and x86 are supported. - Invoke cgroup/connect{4,6} programs for unprivileged ICMP ping sockets (instead of just TCP and UDP sockets). - Add a helper for accessing CLOCK_TAI for time sensitive network related programs. - Support accessing network tunnel metadata's flags. - Make TCP SYN ACK RTO tunable by BPF programs with TCP Fast Open. - Add support for writing to Netfilter's nf_conn:mark. Protocols: - WiFi: more Extremely High Throughput (EHT) and Multi-Link Operation (MLO) work (802.11be, WiFi 7). - vsock: improve support for SO_RCVLOWAT. - SMC: support SO_REUSEPORT. - Netlink: define and document how to use netlink in a "modern" way. Support reporting missing attributes via extended ACK. - IPSec: support collect metadata mode for xfrm interfaces. - TCPv6: send consistent autoflowlabel in SYN_RECV state and RST packets. - TCP: introduce optional per-netns connection hash table to allow better isolation between namespaces (opt-in, at the cost of memory and cache pressure). - MPTCP: support TCP_FASTOPEN_CONNECT. - Add NEXT-C-SID support in Segment Routing (SRv6) End behavior. - Adjust IP_UNICAST_IF sockopt behavior for connected UDP sockets. - Open vSwitch: - Allow specifying ifindex of new interfaces. - Allow conntrack and metering in non-initial user namespace. - TLS: support the Korean ARIA-GCM crypto algorithm. - Remove DECnet support. Driver API: - Allow selecting the conduit interface used by each port in DSA switches, at runtime. - Ethernet Power Sourcing Equipment and Power Device support. - Add tc-taprio support for queueMaxSDU parameter, i.e. setting per traffic class max frame size for time-based packet schedules. - Support PHY rate matching - adapting between differing host-side and link-side speeds. - Introduce QUSGMII PHY mode and 1000BASE-KX interface mode. - Validate OF (device tree) nodes for DSA shared ports; make phylink-related properties mandatory on DSA and CPU ports. Enforcing more uniformity should allow transitioning to phylink. - Require that flash component name used during update matches one of the components for which version is reported by info_get(). - Remove "weight" argument from driver-facing NAPI API as much as possible. It's one of those magic knobs which seemed like a good idea at the time but is too indirect to use in practice. - Support offload of TLS connections with 256 bit keys. New hardware / drivers: - Ethernet: - Microchip KSZ9896 6-port Gigabit Ethernet Switch - Renesas Ethernet AVB (EtherAVB-IF) Gen4 SoCs - Analog Devices ADIN1110 and ADIN2111 industrial single pair Ethernet (10BASE-T1L) MAC+PHY. - Rockchip RV1126 Gigabit Ethernet (a version of stmmac IP). - Ethernet SFPs / modules: - RollBall / Hilink / Turris 10G copper SFPs - HALNy GPON module - WiFi: - CYW43439 SDIO chipset (brcmfmac) - CYW89459 PCIe chipset (brcmfmac) - BCM4378 on Apple platforms (brcmfmac) Drivers: - CAN: - gs_usb: HW timestamp support - Ethernet PHYs: - lan8814: cable diagnostics - Ethernet NICs: - Intel (100G): - implement control of FCS/CRC stripping - port splitting via devlink - L2TPv3 filtering offload - nVidia/Mellanox: - tunnel offload for sub-functions - MACSec offload, w/ Extended packet number and replay window offload - significantly restructure, and optimize the AF_XDP support, align the behavior with other vendors - Huawei: - configuring DSCP map for traffic class selection - querying standard FEC statistics - querying SerDes lane number via ethtool - Marvell/Cavium: - egress priority flow control - MACSec offload - AMD/SolarFlare: - PTP over IPv6 and raw Ethernet - small / embedded: - ax88772: convert to phylink (to support SFP cages) - altera: tse: convert to phylink - ftgmac100: support fixed link - enetc: standard Ethtool counters - macb: ZynqMP SGMII dynamic configuration support - tsnep: support multi-queue and use page pool - lan743x: Rx IP & TCP checksum offload - igc: add xdp frags support to ndo_xdp_xmit - Ethernet high-speed switches: - Marvell (prestera): - support SPAN port features (traffic mirroring) - nexthop object offloading - Microchip (sparx5): - multicast forwarding offload - QoS queuing offload (tc-mqprio, tc-tbf, tc-ets) - Ethernet embedded switches: - Marvell (mv88e6xxx): - support RGMII cmode - NXP (felix): - standardized ethtool counters - Microchip (lan966x): - QoS queuing offload (tc-mqprio, tc-tbf, tc-cbs, tc-ets) - traffic policing and mirroring - link aggregation / bonding offload - QUSGMII PHY mode support - Qualcomm 802.11ax WiFi (ath11k): - cold boot calibration support on WCN6750 - support to connect to a non-transmit MBSSID AP profile - enable remain-on-channel support on WCN6750 - Wake-on-WLAN support for WCN6750 - support to provide transmit power from firmware via nl80211 - support to get power save duration for each client - spectral scan support for 160 MHz - MediaTek WiFi (mt76): - WiFi-to-Ethernet bridging offload for MT7986 chips - RealTek WiFi (rtw89): - P2P support" * tag 'net-next-6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1864 commits) eth: pse: add missing static inlines once: rename _SLOW to _SLEEPABLE net: pse-pd: add regulator based PSE driver dt-bindings: net: pse-dt: add bindings for regulator based PoDL PSE controller ethtool: add interface to interact with Ethernet Power Equipment net: mdiobus: search for PSE nodes by parsing PHY nodes. net: mdiobus: fwnode_mdiobus_register_phy() rework error handling net: add framework to support Ethernet PSE and PDs devices dt-bindings: net: phy: add PoDL PSE property net: marvell: prestera: Propagate nh state from hw to kernel net: marvell: prestera: Add neighbour cache accounting net: marvell: prestera: add stub handler neighbour events net: marvell: prestera: Add heplers to interact with fib_notifier_info net: marvell: prestera: Add length macros for prestera_ip_addr net: marvell: prestera: add delayed wq and flush wq on deinit net: marvell: prestera: Add strict cleanup of fib arbiter net: marvell: prestera: Add cleanup of allocated fib_nodes net: marvell: prestera: Add router nexthops ABI eth: octeon: fix build after netif_napi_add() changes net/mlx5: E-Switch, Return EBUSY if can't get mode lock ...
2022-10-04Merge tag 'landlock-6.1-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mic/linux Pull landlock updates from Mickaël Salaün: "Improve user help for Landlock (documentation and sample)" * tag 'landlock-6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mic/linux: landlock: Fix documentation style landlock: Slightly improve documentation and fix spelling samples/landlock: Print hints about ABI versions
2022-10-04Merge tag 'audit-pr-20221003' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit Pull audit updates from Paul Moore: "Six audit patches for v6.1, most are pretty trivial, but a quick list of the highlights are below: - Only free the audit proctitle information on task exit. This allows us to cache the information and improve performance slightly. - Use the time_after() macro to do time comparisons instead of doing it directly and potentially causing ourselves problems when the timer wraps. - Convert an audit_context state comparison from a relative enum comparison, e.g. (x < y), to a not-equal comparison to ensure that we are not caught out at some unknown point in the future by an enum shuffle. - A handful of small cleanups such as tidying up comments and removing unused declarations" * tag 'audit-pr-20221003' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit: audit: remove selinux_audit_rule_update() declaration audit: use time_after to compare time audit: free audit_proctitle only on task exit audit: explicitly check audit_context->context enum value audit: audit_context pid unused, context enum comment fix audit: fix repeated words in comments
2022-10-04Merge tag 'x86_cleanups_for_v6.1_rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 cleanups from Borislav Petkov: - The usual round of smaller fixes and cleanups all over the tree * tag 'x86_cleanups_for_v6.1_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/cpu: Include the header of init_ia32_feat_ctl()'s prototype x86/uaccess: Improve __try_cmpxchg64_user_asm() for x86_32 x86: Fix various duplicate-word comment typos x86/boot: Remove superfluous type casting from arch/x86/boot/bitops.h
2022-10-04Merge tag 'x86_cache_for_v6.1_rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 cache resource control updates from Borislav Petkov: - More work by James Morse to disentangle the resctrl filesystem generic code from the architectural one with the endgoal of plugging ARM's MPAM implementation into it too so that the user interface remains the same - Properly restore the MSR_MISC_FEATURE_CONTROL value instead of blindly overwriting it to 0 * tag 'x86_cache_for_v6.1_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (22 commits) x86/resctrl: Make resctrl_arch_rmid_read() return values in bytes x86/resctrl: Add resctrl_rmid_realloc_limit to abstract x86's boot_cpu_data x86/resctrl: Rename and change the units of resctrl_cqm_threshold x86/resctrl: Move get_corrected_mbm_count() into resctrl_arch_rmid_read() x86/resctrl: Move mbm_overflow_count() into resctrl_arch_rmid_read() x86/resctrl: Pass the required parameters into resctrl_arch_rmid_read() x86/resctrl: Abstract __rmid_read() x86/resctrl: Allow per-rmid arch private storage to be reset x86/resctrl: Add per-rmid arch private storage for overflow and chunks x86/resctrl: Calculate bandwidth from the previous __mon_event_count() chunks x86/resctrl: Allow update_mba_bw() to update controls directly x86/resctrl: Remove architecture copy of mbps_val x86/resctrl: Switch over to the resctrl mbps_val list x86/resctrl: Create mba_sc configuration in the rdt_domain x86/resctrl: Abstract and use supports_mba_mbps() x86/resctrl: Remove set_mba_sc()s control array re-initialisation x86/resctrl: Add domain offline callback for resctrl work x86/resctrl: Group struct rdt_hw_domain cleanup x86/resctrl: Add domain online callback for resctrl work x86/resctrl: Merge mon_capable and mon_enabled ...
2022-10-04Merge tag 'x86_microcode_for_v6.1_rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x75 microcode loader updates from Borislav Petkov: - Get rid of a single ksize() usage - By popular demand, print the previous microcode revision an update was done over - Remove more code related to the now gone MICROCODE_OLD_INTERFACE - Document the problems stemming from microcode late loading * tag 'x86_microcode_for_v6.1_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/microcode/AMD: Track patch allocation size explicitly x86/microcode: Print previous version of microcode after reload x86/microcode: Remove ->request_microcode_user() x86/microcode: Document the whole late loading problem
2022-10-04Merge tag 'x86_paravirt_for_v6.1_rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 paravirt fix from Borislav Petkov: - Ensure paravirt patching site descriptors are aligned properly so that code can do proper arithmetic with their addresses * tag 'x86_paravirt_for_v6.1_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/paravirt: Ensure proper alignment
2022-10-04Merge tag 'x86_misc_for_v6.1_rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull misc x86 fixes from Borislav Petkov: - Drop misleading "RIP" from the opcodes dumping message - Correct APM entry's Konfig help text * tag 'x86_misc_for_v6.1_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/dumpstack: Don't mention RIP in "Code: " x86/Kconfig: Specify idle=poll instead of no-hlt
2022-10-04Merge tag 'x86_asm_for_v6.1_rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 asm update from Borislav Petkov: - Use the __builtin_ffs/ctzl() compiler builtins for the constant argument case in the kernel's optimized ffs()/ffz() helpers in order to make use of the compiler's constant folding optmization passes. * tag 'x86_asm_for_v6.1_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/asm/bitops: Use __builtin_ctzl() to evaluate constant expressions x86/asm/bitops: Use __builtin_ffs() to evaluate constant expressions
2022-10-04Merge tag 'x86_core_for_v6.1_rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 core fixes from Borislav Petkov: - Make sure an INT3 is slapped after every unconditional retpoline JMP as both vendors suggest - Clean up pciserial a bit * tag 'x86_core_for_v6.1_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86,retpoline: Be sure to emit INT3 after JMP *%\reg x86/earlyprintk: Clean up pciserial
2022-10-04Merge tag 'x86_apic_for_v6.1_rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 APIC update from Borislav Petkov: - Add support for locking the APIC in X2APIC mode to prevent SGX enclave leaks * tag 'x86_apic_for_v6.1_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/apic: Don't disable x2APIC if locked
2022-10-04Merge tag 'ras_core_for_v6.1_rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 RAS updates from Borislav Petkov: - Fix the APEI MCE callback handler to consult the hardware about the granularity of the memory error instead of hard-coding it - Offline memory pages on Intel machines after 2 errors reported per page * tag 'ras_core_for_v6.1_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/mce: Retrieve poison range from hardware RAS/CEC: Reduce offline page threshold for Intel systems
2022-10-04Merge tag 'x86_cpu_for_v6.1_rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 cpu updates from Borislav Petkov: - Print the CPU number at segfault time. The number printed is not always accurate (preemption is enabled at that time) but the print string contains "likely" and after a lot of back'n'forth on this, this was the consensus that was reached. See thread at [1]. - After a *lot* of testing and polishing, finally the clear_user() improvements to inline REP; STOSB by default Link: https://lore.kernel.org/r/5d62c1d0-7425-d5bb-ecb5-1dc3b4d7d245@intel.com [1] * tag 'x86_cpu_for_v6.1_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/mm: Print likely CPU at segfault time x86/clear_user: Make it faster
2022-10-04Merge tag 'x86_sgx_for_v6.1_rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 SGX update from Borislav Petkov: - Improve the documentation of a couple of SGX functions handling backing storage * tag 'x86_sgx_for_v6.1_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/sgx: Improve comments for sgx_encl_lookup/alloc_backing()
2022-10-04Merge tag 'x86_timers_for_v6.1_rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 RTC cleanups from Borislav Petkov: - Cleanup x86/rtc.c and delete duplicated functionality in favor of using the respective functionality from the RTC library * tag 'x86_timers_for_v6.1_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/rtc: Rename mach_set_rtc_mmss() to mach_set_cmos_time() x86/rtc: Rewrite & simplify mach_get_cmos_time() by deleting duplicated functionality
2022-10-04Merge tag 'x86_platform_for_v6.1_rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 platform update from Borislav Petkov: "A single x86/platform improvement when the kernel is running as an ACRN guest: - Get TSC and CPU frequency from CPUID leaf 0x40000010 when the kernel is running as a guest on the ACRN hypervisor" * tag 'x86_platform_for_v6.1_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/acrn: Set up timekeeping
2022-10-04Merge tag 'edac_updates_for_v6.1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras Pull EDAC updates from Borislav Petkov: - Add support for Skylake-S CPUs to ie31200_edac - Improve error decoding speed of the Intel drivers by avoiding the ACPI facilities but doing decoding in the driver itself - Other misc improvements to the Intel drivers - The usual cleanups and fixlets all over EDAC land * tag 'edac_updates_for_v6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras: EDAC/i7300: Correct the i7300_exit() function name in comment x86/sb_edac: Add row column translation for Broadwell EDAC/i10nm: Print an extra register set of retry_rd_err_log EDAC/i10nm: Retrieve and print retry_rd_err_log registers for HBM EDAC/skx_common: Add ChipSelect ADXL component EDAC/ppc_4xx: Reorder symbols to get rid of a few forward declarations EDAC: Remove obsolete declarations in edac_module.h EDAC/i10nm: Add driver decoder for Ice Lake and Tremont CPUs EDAC/skx_common: Make output format similar EDAC/skx_common: Use driver decoder first EDAC/mc: Drop duplicated dimm->nr_pages debug printout EDAC/mc: Replace spaces with tabs in memtype flags definition EDAC/wq: Remove unneeded flush_workqueue() EDAC/ie31200: Add Skylake-S support
2022-10-04Merge branches 'edac-drivers' and 'edac-misc' into edac-updates-for-v6.1Borislav Petkov
Combine all queued EDAC changes for submission into v6.1: * edac-drivers: EDAC/ie31200: Add Skylake-S support * edac-misc: EDAC/i7300: Correct the i7300_exit() function name in comment x86/sb_edac: Add row column translation for Broadwell EDAC/i10nm: Print an extra register set of retry_rd_err_log EDAC/i10nm: Retrieve and print retry_rd_err_log registers for HBM EDAC/skx_common: Add ChipSelect ADXL component EDAC/ppc_4xx: Reorder symbols to get rid of a few forward declarations EDAC: Remove obsolete declarations in edac_module.h EDAC/i10nm: Add driver decoder for Ice Lake and Tremont CPUs EDAC/skx_common: Make output format similar EDAC/skx_common: Use driver decoder first EDAC/mc: Drop duplicated dimm->nr_pages debug printout EDAC/mc: Replace spaces with tabs in memtype flags definition EDAC/wq: Remove unneeded flush_workqueue() Signed-off-by: Borislav Petkov <bp@suse.de>
2022-10-03eth: pse: add missing static inlinesJakub Kicinski
build bot reports missing 'static inline' qualifiers in the header. Reported-by: kernel test robot <lkp@intel.com> Fixes: 18ff0bcda6d1 ("ethtool: add interface to interact with Ethernet Power Equipment") Reviewed-by: Oleksij Rempel <o.rempel@pengutronix.de> Link: https://lore.kernel.org/r/20221004040327.2034878-1-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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