kernel/linux.git/tools/arch/x86/include, branch v6.12.80

x86/rdrand: Disable RDSEED on AMD Cyan Skillfish

2025-07-17T16:37:14+00:00

commit 5b937a1ed64ebeba8876e398110a5790ad77407c upstream. AMD Cyan Skillfish (Family 17h, Model 47h, Stepping 0h) has an error that causes RDSEED to always return 0xffffffff, while RDRAND works correctly. Mask the RDSEED cap for this CPU so that both /proc/cpuinfo and direct CPUID read report RDSEED as unavailable. [ bp: Move to amd.c, massage. ] Signed-off-by: Mikhail Paulyshka Signed-off-by: Borislav Petkov (AMD) Cc: Link: https://lore.kernel.org/20250524145319.209075-1-me@mixaill.net Signed-off-by: Greg Kroah-Hartman

perf cap: Add __NR_capget to arch/x86 unistd

2024-10-28T16:04:52+00:00

As there are duplicated kernel headers in tools/include libc can pick up the wrong definitions. This was causing the wrong system call for capget in perf. Reported-by: Adrian Hunter Fixes: e25ebda78e230283 ("perf cap: Tidy up and improve capability testing") Closes: https://lore.kernel.org/lkml/cc7d6bdf-1aeb-4179-9029-4baf50b59342@intel.com/ Signed-off-by: Ian Rogers Tested-by: Adrian Hunter Cc: Alexander Shishkin Cc: Ingo Molnar Cc: Jiri Olsa Cc: Kan Liang Cc: Mark Rutland Cc: Namhyung Kim Cc: Peter Zijlstra Link: https://lore.kernel.org/r/20241026055448.312247-1-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo

tools arch x86: Sync the msr-index.h copy with the kernel sources

2024-10-24T13:27:59+00:00

To pick up the changes from these csets: dc1e67f70f6d4e33 ("KVM VMX: Move MSR_IA32_VMX_MISC bit defines to asm/vmx.h") d7bfc9ffd58037ff ("KVM: VMX: Move MSR_IA32_VMX_BASIC bit defines to asm/vmx.h") beb2e446046f8dd9 ("x86/cpu: KVM: Move macro to encode PAT value to common header") e7e80b66fb242a63 ("x86/cpu: KVM: Add common defines for architectural memory types (PAT, MTRRs, etc.)") That cause no changes to tooling: $ tools/perf/trace/beauty/tracepoints/x86_msr.sh > before $ cp arch/x86/include/asm/msr-index.h tools/arch/x86/include/asm/msr-index.h $ tools/perf/trace/beauty/tracepoints/x86_msr.sh > after $ diff -u before after $ To see how this works take a look at this previous update: https://git.kernel.org/torvalds/c/174372668933ede5 174372668933ede5 ("tools arch x86: Sync the msr-index.h copy with the kernel sources to pick IA32_MKTME_KEYID_PARTITIONING") Just silences this perf build warning: Warning: Kernel ABI header differences: diff -u tools/arch/x86/include/asm/msr-index.h arch/x86/include/asm/msr-index.h Please see tools/include/uapi/README for further details. Cc: Adrian Hunter Cc: Ian Rogers Cc: Jiri Olsa Cc: Kan Liang Cc: Namhyung Kim Cc: Sean Christopherson Cc: Xin Li Link: https://lore.kernel.org/lkml/ZxpLSBzGin3vjs3b@x1 Signed-off-by: Arnaldo Carvalho de Melo

tools headers UAPI: Sync kvm headers with the kernel sources

2024-10-23T14:34:56+00:00

To pick the changes in: aa8d1f48d353b046 ("KVM: x86/mmu: Introduce a quirk to control memslot zap behavior") 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 differences: diff -u tools/arch/x86/include/uapi/asm/kvm.h arch/x86/include/uapi/asm/kvm.h Please see tools/include/uapi/README for further details. Cc: Adrian Hunter Cc: Ian Rogers Cc: Jiri Olsa Cc: Kan Liang Cc: Namhyung Kim Cc: Paolo Bonzini Cc: Yan Zhao Link: https://lore.kernel.org/lkml/ZxgN0O02YrAJ2qIC@x1 Signed-off-by: Arnaldo Carvalho de Melo

tools arch x86: Sync the msr-index.h copy with the kernel sources

2024-09-30T20:23:38+00:00

To pick up the changes from these csets: 0a3e4e94d137daac ("platform/x86/intel/ifs: Add SBAF test image loading support") That cause no changes to tooling: $ tools/perf/trace/beauty/tracepoints/x86_msr.sh > before $ cp arch/x86/include/asm/msr-index.h tools/arch/x86/include/asm/msr-index.h $ tools/perf/trace/beauty/tracepoints/x86_msr.sh > after $ diff -u before after $ Just silences this perf build warning: Warning: Kernel ABI header differences: diff -u tools/arch/x86/include/asm/msr-index.h arch/x86/include/asm/msr-index.h Cc: Adrian Hunter Cc: Hans de Goede Cc: Ian Rogers Cc: Jiri Olsa Cc: Jithu Joseph Cc: Kan Liang Cc: Namhyung Kim Link: https://lore.kernel.org/lkml/ZvrJY68Btx3a_yV4@x1 Signed-off-by: Arnaldo Carvalho de Melo

tools/include: Sync x86 headers with the kernel sources

2024-08-07T17:59:07+00:00

To pick up changes from: 149fd4712bcd perf/x86/intel: Support Perfmon MSRs aliasing 21b362cc762a x86/resctrl: Enable shared RMID mode on Sub-NUMA Cluster (SNC) systems 4f460bff7b6a cpufreq: acpi: move MSR_K7_HWCR_CPB_DIS_BIT into msr-index.h 7ea81936b853 x86/cpufeatures: Add HWP highest perf change feature flag 78ce84b9e0a5 x86/cpufeatures: Flip the /proc/cpuinfo appearance logic 1beb348d5c7f x86/sev: Provide SVSM discovery support This should be used to beautify x86 syscall arguments and it addresses these tools/perf build warnings: Warning: Kernel ABI header differences: diff -u tools/arch/x86/include/asm/cpufeatures.h arch/x86/include/asm/cpufeatures.h diff -u tools/arch/x86/include/asm/msr-index.h arch/x86/include/asm/msr-index.h Please see tools/include/uapi/README for details (it's in the first patch of this series). Cc: Thomas Gleixner Cc: Ingo Molnar Cc: Borislav Petkov Cc: Dave Hansen Cc: "H. Peter Anvin" Cc: x86@kernel.org Signed-off-by: Namhyung Kim

tools/include: Sync uapi/linux/kvm.h with the kernel sources

2024-08-06T19:30:32+00:00

And other arch-specific UAPI headers to pick up changes from: 4b23e0c199b2 KVM: Ensure new code that references immediate_exit gets extra scrutiny 85542adb65ec KVM: x86: Add KVM_RUN_X86_GUEST_MODE kvm_run flag 6fef518594bc KVM: x86: Add a capability to configure bus frequency for APIC timer 34ff65901735 x86/sev: Use kernel provided SVSM Calling Areas 5dcc1e76144f Merge tag 'kvm-x86-misc-6.11' of https://github.com/kvm-x86/linux into HEAD 9a0d2f4995dd KVM: PPC: Book3S HV: Add one-reg interface for HASHPKEYR register e9eb790b2557 KVM: PPC: Book3S HV: Add one-reg interface for HASHKEYR register 1a1e6865f516 KVM: PPC: Book3S HV: Add one-reg interface for DEXCR register This should be used to beautify KVM syscall arguments and it addresses these tools/perf build warnings: Warning: Kernel ABI header differences: diff -u tools/include/uapi/linux/kvm.h include/uapi/linux/kvm.h diff -u tools/arch/x86/include/uapi/asm/kvm.h arch/x86/include/uapi/asm/kvm.h diff -u tools/arch/x86/include/uapi/asm/svm.h arch/x86/include/uapi/asm/svm.h diff -u tools/arch/powerpc/include/uapi/asm/kvm.h arch/powerpc/include/uapi/asm/kvm.h Please see tools/include/uapi/README for details (it's in the first patch of this series). Cc: Paolo Bonzini Cc: kvm@vger.kernel.org Signed-off-by: Namhyung Kim

tools headers UAPI: Sync kvm headers with the kernel sources

2024-05-28T19:49:36+00:00

To pick the changes in: 4af663c2f64a8d25 ("KVM: SEV: Allow per-guest configuration of GHCB protocol version") 4f5defae708992dd ("KVM: SEV: introduce KVM_SEV_INIT2 operation") 26c44aa9e076ed83 ("KVM: SEV: define VM types for SEV and SEV-ES") ac5c48027bacb1b5 ("KVM: SEV: publish supported VMSA features") 651d61bc8b7d8bb6 ("KVM: PPC: Fix documentation for ppc mmu caps") 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 differences: diff -u tools/include/uapi/linux/kvm.h include/uapi/linux/kvm.h diff -u tools/arch/x86/include/uapi/asm/kvm.h arch/x86/include/uapi/asm/kvm.h Cc: Adrian Hunter Cc: Ian Rogers Cc: Jiri Olsa Cc: Joel Stanley Cc: Michael Ellerman Cc: Michael Roth Cc: Namhyung Kim Cc: Paolo Bonzini Link: https://lore.kernel.org/lkml/ZlYxAdHjyAkvGtMW@x1 Signed-off-by: Arnaldo Carvalho de Melo

tools arch x86: Sync the msr-index.h copy with the kernel sources

2024-05-28T18:14:32+00:00

To pick up the changes from these csets: 53bc516ade85a764 ("x86/msr: Move ARCH_CAP_XAPIC_DISABLE bit definition to its rightful place") That patch just move definitions around, so this just silences this perf build warning: Warning: Kernel ABI header differences: diff -u tools/arch/x86/include/asm/msr-index.h arch/x86/include/asm/msr-index. Cc: Adrian Hunter Cc: Borislav Petkov (AMD) Cc: Ian Rogers Cc: Jiri Olsa Cc: Namhyung Kim Cc: Pawan Gupta Link: https://lore.kernel.org/lkml/ZlYe8jOzd1_DyA7X@x1 Signed-off-by: Arnaldo Carvalho de Melo

Merge tag 'perf-tools-for-v6.10-1-2024-05-21' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools

2024-05-21T22:45:14+00:00

Pull perf tools updates from Arnaldo Carvalho de Melo: "General: - Integrate the shellcheck utility with the build of perf to allow catching shell problems early in areas such as 'perf test', 'perf trace' scrape scripts, etc - Add 'uretprobe' variant in the 'perf bench uprobe' tool - Add script to run instances of 'perf script' in parallel - Allow parsing tracepoint names that start with digits, such as 9p/9p_client_req, etc. Make sure 'perf test' tests it even on systems where those tracepoints aren't available - Add Kan Liang to MAINTAINERS as a perf tools reviewer - Add support for using the 'capstone' disassembler library in various tools, such as 'perf script' and 'perf annotate'. This is an alternative for the use of the 'xed' and 'objdump' disassemblers Data-type profiling improvements: - Resolve types for a->b->c by backtracking the assignments until it finds DWARF info for one of those members - Support for global variables, keeping a cache to speed up lookups - Handle the 'call' instruction, dealing with effects on registers and handling its return when tracking register data types - Handle x86's segment based addressing like %gs:0x28, to support things like per CPU variables, the stack canary, etc - Data-type profiling got big speedups when using capstone for disassembling. The objdump outoput parsing method is left as a fallback when capstone fails or isn't available. There are patches posted for 6.11 that to use a LLVM disassembler - Support event group display in the TUI when annotating types with --data-type, for instance to show memory load and store events for the data type fields - Optimize the 'perf annotate' data structures, reducing memory usage - Add a initial 'perf test' for 'perf annotate', checking that a target symbol appears on the output, specifying objdump via the command line, etc Vendor Events: - Update Intel JSON files for Cascade Lake X, Emerald Rapids, Grand Ridge, Ice Lake X, Lunar Lake, Meteor Lake, Sapphire Rapids, Sierra Forest, Sky Lake X, Sky Lake and Snow Ridge X. Remove info metrics erroneously in TopdownL1 - Add AMD's Zen 5 core and uncore events and metrics. Those come from the "Performance Monitor Counters for AMD Family 1Ah Model 00h- 0Fh Processors" document, with events that capture information on op dispatch, execution and retirement, branch prediction, L1 and L2 cache activity, TLB activity, etc - Mark L1D_CACHE_INVAL impacted by errata for ARM64's AmpereOne/ AmpereOneX Miscellaneous: - Sync header copies with the kernel sources - Move some header copies used only for generating translation string tables for ioctl cmds and other syscall integer arguments to a new directory under tools/perf/beauty/, to separate from copies in tools/include/ that are used to build the tools - Introduce scrape script for several syscall 'flags'/'mask' arguments - Improve cpumap utilization, fixing up pairing of refcounts, using the right iterators (perf_cpu_map__for_each_cpu), etc - Give more details about raw event encodings in 'perf list', show tracepoint encoding in the detailed output - Refactor the DSOs handling code, reducing memory usage - Document the BPF event modifier and add a 'perf test' for it - Improve the event parser, better error messages and add further 'perf test's for it - Add reference count checking to 'struct comm_str' and 'struct mem_info' - Make ARM64's 'perf test' entries for the Neoverse N1 more robust - Tweak the ARM64's Coresight 'perf test's - Improve ARM64's CoreSight ETM version detection and error reporting - Fix handling of symbols when using kcore - Fix PAI (Processor Activity Instrumentation) counter names for s390 virtual machines in 'perf report' - Fix -g/--call-graph option failure in 'perf sched timehist' - Add LIBTRACEEVENT_DIR build option to allow building with libtraceevent installed in non-standard directories, such as when doing cross builds - Various 'perf test' and 'perf bench' fixes - Improve 'perf probe' error message for long C++ probe names" * tag 'perf-tools-for-v6.10-1-2024-05-21' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools: (260 commits) tools lib subcmd: Show parent options in help perf pmu: Count sys and cpuid JSON events separately perf stat: Don't display metric header for non-leader uncore events perf annotate-data: Ensure the number of type histograms perf annotate: Fix segfault on sample histogram perf daemon: Fix file leak in daemon_session__control libsubcmd: Fix parse-options memory leak perf lock: Avoid memory leaks from strdup() perf sched: Rename 'switches' column header to 'count' and add usage description, options for latency perf tools: Ignore deleted cgroups perf parse: Allow tracepoint names to start with digits perf parse-events: Add new 'fake_tp' parameter for tests perf parse-events: pass parse_state to add_tracepoint perf symbols: Fix ownership of string in dso__load_vmlinux() perf symbols: Update kcore map before merging in remaining symbols perf maps: Re-use __maps__free_maps_by_name() perf symbols: Remove map from list before updating addresses perf tracepoint: Don't scan all tracepoints to test if one exists perf dwarf-aux: Fix build with HAVE_DWARF_CFI_SUPPORT perf thread: Fixes to thread__new() related to initializing comm ...