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From: H.J. Lu <hjl@sourceware.org> To: glibc-cvs@sourceware.org Subject: [glibc] <sys/platform/x86.h>: Add MSRLIST support Date: Wed, 5 Apr 2023 22:45:09 +0000 (GMT) [thread overview] Message-ID: <20230405224509.A21683858434@sourceware.org> (raw) https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=b39741b45f3de7090a7f7fdd8bc487382d53b848 commit b39741b45f3de7090a7f7fdd8bc487382d53b848 Author: H.J. Lu <hjl.tools@gmail.com> Date: Wed Apr 5 09:21:40 2023 -0700 <sys/platform/x86.h>: Add MSRLIST support Add MSRLIST support to <sys/platform/x86.h>. Reviewed-by: Noah Goldstein <goldstein.w.n@gmail.com> Diff: --- manual/platform.texi | 4 ++++ sysdeps/x86/bits/platform/x86.h | 1 + sysdeps/x86/tst-get-cpu-features.c | 1 + 3 files changed, 6 insertions(+) diff --git a/manual/platform.texi b/manual/platform.texi index af75e5c413..bfccd024a5 100644 --- a/manual/platform.texi +++ b/manual/platform.texi @@ -464,6 +464,10 @@ the indirect branch predictor barrier (IBPB). @item @code{MSR} -- Model Specific Registers RDMSR and WRMSR instructions. +@item +@code{MSRLIST} -- RDMSRLIST/WRMSRLIST instructions and IA32_BARRIER +MSR. + @item @code{MTRR} -- Memory Type Range Registers. diff --git a/sysdeps/x86/bits/platform/x86.h b/sysdeps/x86/bits/platform/x86.h index abc0116607..57973e9a6c 100644 --- a/sysdeps/x86/bits/platform/x86.h +++ b/sysdeps/x86/bits/platform/x86.h @@ -302,6 +302,7 @@ enum x86_cpu_HRESET = x86_cpu_index_7_ecx_1_eax + 22, x86_cpu_AVX_IFMA = x86_cpu_index_7_ecx_1_eax + 23, x86_cpu_LAM = x86_cpu_index_7_ecx_1_eax + 26, + x86_cpu_MSRLIST = x86_cpu_index_7_ecx_1_eax + 27, x86_cpu_index_19_ebx = (CPUID_INDEX_19 * 8 * 4 * sizeof (unsigned int) diff --git a/sysdeps/x86/tst-get-cpu-features.c b/sysdeps/x86/tst-get-cpu-features.c index 3a2d4671ec..0c948c2b04 100644 --- a/sysdeps/x86/tst-get-cpu-features.c +++ b/sysdeps/x86/tst-get-cpu-features.c @@ -214,6 +214,7 @@ do_test (void) CHECK_CPU_FEATURE_PRESENT (HRESET); CHECK_CPU_FEATURE_PRESENT (AVX_IFMA); CHECK_CPU_FEATURE_PRESENT (LAM); + CHECK_CPU_FEATURE_PRESENT (MSRLIST); CHECK_CPU_FEATURE_PRESENT (AESKLE); CHECK_CPU_FEATURE_PRESENT (WIDE_KL); CHECK_CPU_FEATURE_PRESENT (PTWRITE);
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