kernel/linux.git/tools/arch/x86/include/uapi, branch v6.6.131

perf/benchmark: fix seccomp_unotify benchmark for 32-bit

2023-10-19T00:47:18+00:00

Commit 7d5cb68af638 (perf/benchmark: add a new benchmark for seccom_unotify) added a reference to __NR_seccomp into perf. This is fine as it added also a definition of __NR_seccomp for 64-bit. But it failed to do so for 32-bit as instead of ifndef, ifdef was used. Fix this typo (so fix the build of perf on 32-bit). Fixes: 7d5cb68af638 (perf/benchmark: add a new benchmark for seccom_unotify) Cc: Andrei Vagin Cc: "Peter Zijlstra (Intel)" Cc: Kees Cook Signed-off-by: "Jiri Slaby (SUSE)" Link: https://lore.kernel.org/r/20231017083019.31733-1-jirislaby@kernel.org Signed-off-by: Kees Cook

perf/benchmark: add a new benchmark for seccom_unotify

2023-07-17T23:08:08+00:00

The benchmark is similar to the pipe benchmark. It creates two processes, one is calling syscalls, and another process is handling them via seccomp user notifications. It measures the time required to run a specified number of interations. $ ./perf bench sched seccomp-notify --sync-mode --loop 1000000 # Running 'sched/seccomp-notify' benchmark: # Executed 1000000 system calls Total time: 2.769 [sec] 2.769629 usecs/op 361059 ops/sec $ ./perf bench sched seccomp-notify # Running 'sched/seccomp-notify' benchmark: # Executed 1000000 system calls Total time: 8.571 [sec] 8.571119 usecs/op 116670 ops/sec Signed-off-by: Andrei Vagin Acked-by: "Peter Zijlstra (Intel)" Link: https://lore.kernel.org/r/20230308073201.3102738-7-avagin@google.com Link: https://lore.kernel.org/r/20230630051953.454638-1-avagin@gmail.com [kees: Added PRIu64 format string] Signed-off-by: Kees Cook

perf bench syscall: Fix __NR_execve undeclared build error

2023-05-19T15:08:00+00:00

The __NR_execve definition for i386 was deleted by mistake in the commit ece7f7c0507c ("perf bench syscall: Add fork syscall benchmark"), add it to fix the build error on i386. Fixes: ece7f7c0507cc147 ("perf bench syscall: Add fork syscall benchmark") Reported-by: Linux Kernel Functional Testing Signed-off-by: Tiezhu Yang Tested-by: Naresh Kamboju Cc: Adrian Hunter Cc: Alexander Shishkin Cc: Ian Rogers Cc: Ingo Molnar Cc: Jiri Olsa Cc: Mark Rutland Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Tiezhu Yang Cc: loongson-kernel@lists.loongnix.cn Closes: https://lore.kernel.org/all/CA+G9fYvgBR1iB0CorM8OC4AM_w_tFzyQKHc+rF6qPzJL=TbfDQ@mail.gmail.com/ Link: https://lore.kernel.org/r/1684480657-2375-1-git-send-email-yangtiezhu@loongson.cn Signed-off-by: Arnaldo Carvalho de Melo

tools headers UAPI: Sync arch prctl headers with the kernel sources

2023-05-17T14:23:43+00:00

To pick the changes in this cset: a03c376ebaf38394 ("x86/arch_prctl: Add AMX feature numbers as ABI constants") 23e5d9ec2bab53c4 ("x86/mm/iommu/sva: Make LAM and SVA mutually exclusive") 2f8794bd087e7958 ("x86/mm: Provide arch_prctl() interface for LAM") This picks these new prctls in a third range, that was also added to the tools/perf/trace/beauty/arch_prctl.c beautifier. $ tools/perf/trace/beauty/x86_arch_prctl.sh > /tmp/before $ cp arch/x86/include/uapi/asm/prctl.h tools/arch/x86/include/uapi/asm/prctl.h $ tools/perf/trace/beauty/x86_arch_prctl.sh > /tmp/after $ diff -u /tmp/before /tmp/after @@ -20,3 +20,11 @@ [0x2003 - 0x2001]= "MAP_VDSO_64", }; +#define x86_arch_prctl_codes_3_offset 0x4001 +static const char *x86_arch_prctl_codes_3[] = { + [0x4001 - 0x4001]= "GET_UNTAG_MASK", + [0x4002 - 0x4001]= "ENABLE_TAGGED_ADDR", + [0x4003 - 0x4001]= "GET_MAX_TAG_BITS", + [0x4004 - 0x4001]= "FORCE_TAGGED_SVA", +}; + $ With this 'perf trace' can translate those numbers into strings and use the strings in filter expressions: # perf trace -e prctl 0.000 ( 0.011 ms): DOM Worker/3722622 prctl(option: SET_NAME, arg2: 0x7f9c014b7df5) = 0 0.032 ( 0.002 ms): DOM Worker/3722622 prctl(option: SET_NAME, arg2: 0x7f9bb6b51580) = 0 5.452 ( 0.003 ms): StreamT~ns #30/3722623 prctl(option: SET_NAME, arg2: 0x7f9bdbdfeb70) = 0 5.468 ( 0.002 ms): StreamT~ns #30/3722623 prctl(option: SET_NAME, arg2: 0x7f9bdbdfea70) = 0 24.494 ( 0.009 ms): IndexedDB #556/3722624 prctl(option: SET_NAME, arg2: 0x7f562a32ae28) = 0 24.540 ( 0.002 ms): IndexedDB #556/3722624 prctl(option: SET_NAME, arg2: 0x7f563c6d4b30) = 0 670.281 ( 0.008 ms): systemd-userwo/3722339 prctl(option: SET_NAME, arg2: 0x564be30805c8) = 0 670.293 ( 0.002 ms): systemd-userwo/3722339 prctl(option: SET_NAME, arg2: 0x564be30800f0) = 0 ^C# This addresses this perf build warning: Warning: Kernel ABI header at 'tools/arch/x86/include/uapi/asm/prctl.h' differs from latest version at 'arch/x86/include/uapi/asm/prctl.h' diff -u tools/arch/x86/include/uapi/asm/prctl.h arch/x86/include/uapi/asm/prctl.h Cc: Adrian Hunter Cc: Chang S. Bae Cc: Dave Hansen Cc: Ian Rogers Cc: Jiri Olsa Cc: Kirill A. Shutemov Cc: Namhyung Kim Link: https://lore.kernel.org/lkml/ZGTjNPpD3FOWfetM@kernel.org Signed-off-by: Arnaldo Carvalho de Melo

tools headers kvm: Sync uapi/{asm/linux} kvm.h headers with the kernel sources

2023-05-10T17:19:20+00:00

Picking the changes from: e65733b5c59a1ea2 ("KVM: x86: Redefine 'longmode' as a flag for KVM_EXIT_HYPERCALL") 30ec7997d175cd68 ("KVM: arm64: timers: Allow userspace to set the global counter offset") 821d935c87bc9525 ("KVM: arm64: Introduce support for userspace SMCCC filtering") 81dc9504a7006b48 ("KVM: arm64: nv: timers: Support hyp timer emulation") a8308b3fc9494953 ("KVM: arm64: Refactor hvc filtering to support different actions") 0e5c9a9d6548e9b1 ("KVM: arm64: Expose SMC/HVC width to userspace") Silencing these perf build warnings: Warning: Kernel ABI header at 'tools/include/uapi/linux/kvm.h' differs from latest version at 'include/uapi/linux/kvm.h' diff -u tools/include/uapi/linux/kvm.h include/uapi/linux/kvm.h Warning: Kernel ABI header at 'tools/arch/x86/include/uapi/asm/kvm.h' differs from latest version at 'arch/x86/include/uapi/asm/kvm.h' diff -u tools/arch/x86/include/uapi/asm/kvm.h arch/x86/include/uapi/asm/kvm.h Warning: Kernel ABI header at 'tools/arch/arm64/include/uapi/asm/kvm.h' differs from latest version at 'arch/arm64/include/uapi/asm/kvm.h' diff -u tools/arch/arm64/include/uapi/asm/kvm.h arch/arm64/include/uapi/asm/kvm.h Signed-off-by: Yanteng Si Cc: Adrian Hunter Cc: Alexander Shishkin Cc: Ian Rogers Cc: Ingo Molnar Cc: Jiri Olsa Cc: Mark Rutland Cc: Namhyung Kim Cc: Peter Zijlstra Cc: loongson-kernel@lists.loongnix.cn Link: https://lore.kernel.org/r/ac5adb58411d23b3360d436a65038fefe91c32a8.1683712945.git.siyanteng@loongson.cn Signed-off-by: Arnaldo Carvalho de Melo

perf bench syscall: Add fork syscall benchmark

2023-04-04T12:39:55+00:00

This is a follow up patch for the execve bench which is actually fork + execve, it makes sense to add the fork syscall benchmark to compare the execve part precisely. Some archs have no __NR_fork definition which is used only as a check condition to call test_fork(), let us just define it as -1 to avoid build error. Suggested-by: Namhyung Kim Signed-off-by: Tiezhu Yang Acked-by: Namhyung Kim Cc: Adrian Hunter Cc: Alexander Shishkin Cc: Ian Rogers Cc: Ingo Molnar Cc: Jiri Olsa Cc: Mark Rutland Cc: Peter Zijlstra Cc: loongson-kernel@lists.loongnix.cn Link: https://lore.kernel.org/r/1679381821-22736-1-git-send-email-yangtiezhu@loongson.cn Signed-off-by: Arnaldo Carvalho de Melo

tools headers kvm: Sync uapi/{asm/linux} kvm.h headers with the kernel sources

2023-03-04T02:24:10+00:00

To pick up the changes in: 89b0e7de3451a17f ("KVM: arm64: nv: Introduce nested virtualization VCPU feature") 14329b825ffb7f27 ("KVM: x86/pmu: Introduce masked events to the pmu event filter") 6213b701a9df0472 ("KVM: x86: Replace 0-length arrays with flexible arrays") 3fd49805d19d1c56 ("KVM: s390: Extend MEM_OP ioctl by storage key checked cmpxchg") 14329b825ffb7f27 ("KVM: x86/pmu: Introduce masked events to the pmu event filter") That don't change functionality in tools/perf, as no new ioctl is added for the 'perf trace' scripts to harvest. This addresses these perf build warnings: Warning: Kernel ABI header at 'tools/include/uapi/linux/kvm.h' differs from latest version at 'include/uapi/linux/kvm.h' diff -u tools/include/uapi/linux/kvm.h include/uapi/linux/kvm.h Warning: Kernel ABI header at 'tools/arch/x86/include/uapi/asm/kvm.h' differs from latest version at 'arch/x86/include/uapi/asm/kvm.h' diff -u tools/arch/x86/include/uapi/asm/kvm.h arch/x86/include/uapi/asm/kvm.h Warning: Kernel ABI header at 'tools/arch/arm64/include/uapi/asm/kvm.h' differs from latest version at 'arch/arm64/include/uapi/asm/kvm.h' diff -u tools/arch/arm64/include/uapi/asm/kvm.h arch/arm64/include/uapi/asm/kvm.h Cc: Aaron Lewis Cc: Adrian Hunter Cc: Christoffer Dall Cc: Ian Rogers Cc: Janis Schoetterl-Glausch Cc: Janosch Frank Cc: Jiri Olsa Cc: Kees Kook Cc: Namhyung Kim Cc: Oliver Upton Cc: Sean Christopherson Link: https://lore.kernel.org/lkml/ZAJlg7%2FfWDVGX0F3@kernel.org Signed-off-by: Arnaldo Carvalho de Melo

tools headers svm: Sync svm headers with the kernel sources

2023-03-02T20:38:32+00:00

To pick the changes in: 8c29f01654053258 ("x86/sev: Add SEV-SNP guest feature negotiation support") That triggers: CC /tmp/build/perf-tools/arch/x86/util/kvm-stat.o CC /tmp/build/perf-tools/util/header.o LD /tmp/build/perf-tools/arch/x86/util/perf-in.o LD /tmp/build/perf-tools/arch/x86/perf-in.o LD /tmp/build/perf-tools/arch/perf-in.o LD /tmp/build/perf-tools/util/perf-in.o LD /tmp/build/perf-tools/perf-in.o LINK /tmp/build/perf-tools/perf But this time causes no changes in tooling results, as the introduced SVM_VMGEXIT_TERM_REQUEST exit reason wasn't added to SVM_EXIT_REASONS, that is used in kvm-stat.c. And addresses this perf build warning: Warning: Kernel ABI header at 'tools/arch/x86/include/uapi/asm/svm.h' differs from latest version at 'arch/x86/include/uapi/asm/svm.h' diff -u tools/arch/x86/include/uapi/asm/svm.h arch/x86/include/uapi/asm/svm.h Cc: Adrian Hunter Cc: Borislav Petkov (AMD) Cc: Ian Rogers Cc: Jiri Olsa Cc: Namhyung Kim Cc: Nikunj A Dadhania Link: http://lore.kernel.org/lkml/ Signed-off-by: Arnaldo Carvalho de Melo

perf bench syscall: Add execve syscall benchmark

2023-02-02T19:32:19+00:00

This commit adds the execve syscall benchmark, more syscall benchmarks can be added in the future. Signed-off-by: Tiezhu Yang Acked-by: Namhyung Kim Cc: Alexander Shishkin Cc: Ingo Molnar Cc: Jiri Olsa Cc: Mark Rutland Cc: Peter Zijlstra Link: https://lore.kernel.org/r/1668052208-14047-5-git-send-email-yangtiezhu@loongson.cn Signed-off-by: Arnaldo Carvalho de Melo

perf bench syscall: Add getpgid syscall benchmark

2023-02-02T19:32:19+00:00

This commit adds a simple getpgid syscall benchmark, more syscall benchmarks can be added in the future. Signed-off-by: Tiezhu Yang Acked-by: Namhyung Kim Cc: Alexander Shishkin Cc: Ingo Molnar Cc: Jiri Olsa Cc: Mark Rutland Cc: Peter Zijlstra Link: https://lore.kernel.org/r/1668052208-14047-4-git-send-email-yangtiezhu@loongson.cn Signed-off-by: Arnaldo Carvalho de Melo