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From: Arnaldo Carvalho de Melo <acme@kernel.org>
To: linux-kernel@vger.kernel.org
Cc: Borislav Petkov <bp@alien8.de>,
	Kim Phillips <kim.phillips@amd.com>,
	linux-perf-users@vger.kernel.org,
	Adrian Hunter <adrian.hunter@intel.com>,
	Ian Rogers <irogers@google.com>,
	James Clark <james.clark@linaro.org>,
	Jiri Olsa <jolsa@kernel.org>, Namhyung Kim <namhyung@kernel.org>
Subject: [PATCH 1/1 fyi] tools arch x86: Sync the msr-index.h copy with the kernel sources
Date: Wed, 18 Mar 2026 15:45:31 -0300	[thread overview]
Message-ID: <abryyyeNQR3ovN-R@x1> (raw)

tldr; Just FYI, I'm carrying this on the perf tools tree.

Full explanation:

There used to be no copies, with tools/ code using kernel headers
directly. From time to time tools/perf/ broke due to legitimate kernel
hacking. At some point Linus complained about such direct usage. Then we
adopted the current model.

See further details at:

 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/tools/include/uapi/README

To pick up the changes from these csets:

  9073428bb204d921 ("x86/sev: Allow IBPB-on-Entry feature for SNP guests")

That cause no changes to tooling as it doesn't include a new MSR to be
captured by the tools/perf/trace/beauty/tracepoints/x86_msr.sh script.

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: Borislav Petkov (amd) <bp@alien8.de>
Cc: Kim Phillips <kim.phillips@amd.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/arch/x86/include/asm/msr-index.h | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/tools/arch/x86/include/asm/msr-index.h b/tools/arch/x86/include/asm/msr-index.h
index da5275d8eda63e19..6673601246b382e6 100644
--- a/tools/arch/x86/include/asm/msr-index.h
+++ b/tools/arch/x86/include/asm/msr-index.h
@@ -740,7 +740,10 @@
 #define MSR_AMD64_SNP_SMT_PROT		BIT_ULL(MSR_AMD64_SNP_SMT_PROT_BIT)
 #define MSR_AMD64_SNP_SECURE_AVIC_BIT	18
 #define MSR_AMD64_SNP_SECURE_AVIC	BIT_ULL(MSR_AMD64_SNP_SECURE_AVIC_BIT)
-#define MSR_AMD64_SNP_RESV_BIT		19
+#define MSR_AMD64_SNP_RESERVED_BITS19_22 GENMASK_ULL(22, 19)
+#define MSR_AMD64_SNP_IBPB_ON_ENTRY_BIT	23
+#define MSR_AMD64_SNP_IBPB_ON_ENTRY	BIT_ULL(MSR_AMD64_SNP_IBPB_ON_ENTRY_BIT)
+#define MSR_AMD64_SNP_RESV_BIT		24
 #define MSR_AMD64_SNP_RESERVED_MASK	GENMASK_ULL(63, MSR_AMD64_SNP_RESV_BIT)
 #define MSR_AMD64_SAVIC_CONTROL		0xc0010138
 #define MSR_AMD64_SAVIC_EN_BIT		0
-- 
2.53.0


             reply	other threads:[~2026-03-18 18:45 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-03-18 18:45 Arnaldo Carvalho de Melo [this message]
  -- strict thread matches above, loose matches on Subject: below --
2025-06-12 21:02 [PATCH 1/1 fyi] tools arch x86: Sync the msr-index.h copy with the kernel sources Arnaldo Carvalho de Melo
2024-10-24 13:27 Arnaldo Carvalho de Melo
2024-09-30 15:53 Arnaldo Carvalho de Melo
2024-05-28 18:14 Arnaldo Carvalho de Melo
2023-09-13 11:53 arnaldo.melo
2023-08-07 13:47 [PATCH 1/1 FYI] " Arnaldo Carvalho de Melo
2023-03-03 21:36 [PATCH 1/1 fyi] " Arnaldo Carvalho de Melo
2022-12-20 17:35 Arnaldo Carvalho de Melo
2022-10-14 21:11 [PATCH 1/1 FYI] " Arnaldo Carvalho de Melo
2022-02-22 21:41 Arnaldo Carvalho de Melo
2022-01-13 14:25 Arnaldo Carvalho de Melo
2022-01-13 19:14 ` Rafael J. Wysocki
2022-01-14  0:15   ` Huang Rui
2022-01-14 14:35     ` Arnaldo Carvalho de Melo
2020-04-01 15:33 Arnaldo Carvalho de Melo

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