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| author | H.J. Lu <hjl.tools@gmail.com> | 2023-04-05 09:21:28 -0700 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2023-04-05 14:46:10 -0700 |
| commit | 8c8e39116604fcd1101658f31dd136754a4aca6e (patch) | |
| tree | 326c23de8a42139dba5f32ded976184defaaf3f3 | |
| parent | 083204a0e219bbfe0a475fcd3dcd0a579be17b48 (diff) | |
| download | glibc-8c8e39116604fcd1101658f31dd136754a4aca6e.zip glibc-8c8e39116604fcd1101658f31dd136754a4aca6e.tar.gz glibc-8c8e39116604fcd1101658f31dd136754a4aca6e.tar.bz2 | |
<sys/platform/x86.h>: Add LA57 support
Add 57-bit linear addresses and five-level paging (LA57) support to
<sys/platform/x86.h>.
Reviewed-by: Noah Goldstein <goldstein.w.n@gmail.com>
| -rw-r--r-- | manual/platform.texi | 3 | ||||
| -rw-r--r-- | sysdeps/x86/bits/platform/x86.h | 2 | ||||
| -rw-r--r-- | sysdeps/x86/tst-get-cpu-features.c | 1 |
3 files changed, 5 insertions, 1 deletions
diff --git a/manual/platform.texi b/manual/platform.texi index c1cef57..9251b63 100644 --- a/manual/platform.texi +++ b/manual/platform.texi @@ -395,6 +395,9 @@ the indirect branch predictor barrier (IBPB). @code{L1D_FLUSH} -- IA32_FLUSH_CMD MSR. @item +@code{LA57} -- 57-bit linear addresses and five-level paging. + +@item @code{LAHF64_SAHF64} -- LAHF/SAHF available in 64-bit mode. @item diff --git a/sysdeps/x86/bits/platform/x86.h b/sysdeps/x86/bits/platform/x86.h index 1ed24d7..c9189fa 100644 --- a/sysdeps/x86/bits/platform/x86.h +++ b/sysdeps/x86/bits/platform/x86.h @@ -182,7 +182,7 @@ enum x86_cpu_INDEX_7_ECX_13 = x86_cpu_index_7_ecx + 13, x86_cpu_AVX512_VPOPCNTDQ = x86_cpu_index_7_ecx + 14, x86_cpu_INDEX_7_ECX_15 = x86_cpu_index_7_ecx + 15, - x86_cpu_INDEX_7_ECX_16 = x86_cpu_index_7_ecx + 16, + x86_cpu_LA57 = x86_cpu_index_7_ecx + 16, /* Note: Bits 17-21: The value of MAWAU used by the BNDLDX and BNDSTX instructions in 64-bit mode. */ x86_cpu_RDPID = x86_cpu_index_7_ecx + 22, diff --git a/sysdeps/x86/tst-get-cpu-features.c b/sysdeps/x86/tst-get-cpu-features.c index 1954698..5f5cd3e 100644 --- a/sysdeps/x86/tst-get-cpu-features.c +++ b/sysdeps/x86/tst-get-cpu-features.c @@ -144,6 +144,7 @@ do_test (void) CHECK_CPU_FEATURE_PRESENT (AVX512_VNNI); CHECK_CPU_FEATURE_PRESENT (AVX512_BITALG); CHECK_CPU_FEATURE_PRESENT (AVX512_VPOPCNTDQ); + CHECK_CPU_FEATURE_PRESENT (LA57); CHECK_CPU_FEATURE_PRESENT (RDPID); CHECK_CPU_FEATURE_PRESENT (KL); CHECK_CPU_FEATURE_PRESENT (CLDEMOTE); |