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Arnaldo Carvalho de Melo d222b6e6fb tools headers x86 cpufeatures: Sync with the kernel sources 
To pick the changes from:

  faad6645e1 ("x86/cpufeatures: Add CPUID feature bit for the Bus Lock Threshold")
  159013a7ca ("x86/its: Enumerate Indirect Target Selection (ITS) bug")
  f9f27c4a37 ("x86/cpufeatures: Add "Allowed SEV Features" Feature")
  b02dc185ee ("x86/cpufeatures: Add X86_FEATURE_APX")
  d88bb2ded2 ("KVM: x86: Advertise support for AMD's PREFETCHI")

This causes these perf files to be rebuilt and brings some X86_FEATURE
that may be used by:

      CC       /tmp/build/perf/bench/mem-memcpy-x86-64-asm.o
      CC       /tmp/build/perf/bench/mem-memset-x86-64-asm.o

And addresses this perf build warning:

  Warning: Kernel ABI header differences:
    diff -u tools/arch/x86/include/asm/cpufeatures.h arch/x86/include/asm/cpufeatures.h

Please see tools/include/uapi/README for further details.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Babu Moger <babu.moger@amd.com>
Cc: Chang S. Bae <chang.seok.bae@intel.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: James Clark <james.clark@linaro.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Kishon Vijay Abraham I <kvijayab@amd.com>
Cc: Manali Shukla <manali.shukla@amd.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Pawan Gupta <pawan.kumar.gupta@linux.intel.com>
Cc: Sean Christopherson <seanjc@google.com>
Link: https://lore.kernel.org/r/aFBWAI3kHYX5aL9G@x1
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
History 2025-06-17 18:29:42 -03:00
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README

README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.