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* [glibc] <sys/platform/x86.h>: Add WRMSRNS support
@ 2023-04-05 22:44 H.J. Lu
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From: H.J. Lu @ 2023-04-05 22:44 UTC (permalink / raw)
To: glibc-cvs
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=227983551d3b590e1a9ed4e81d793b7f6abfadd2
commit 227983551d3b590e1a9ed4e81d793b7f6abfadd2
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Wed Apr 5 09:21:37 2023 -0700
<sys/platform/x86.h>: Add WRMSRNS support
Add WRMSRNS support to <sys/platform/x86.h>.
Reviewed-by: Noah Goldstein <goldstein.w.n@gmail.com>
Diff:
---
manual/platform.texi | 3 +++
sysdeps/x86/bits/platform/x86.h | 1 +
sysdeps/x86/tst-get-cpu-features.c | 1 +
3 files changed, 5 insertions(+)
diff --git a/manual/platform.texi b/manual/platform.texi
index ecee3a7b39..af79f5eb4d 100644
--- a/manual/platform.texi
+++ b/manual/platform.texi
@@ -679,6 +679,9 @@ using a TSC deadline value.
@item
@code{WIDE_KL} -- AES wide Key Locker instructions.
+@item
+@code{WRMSRNS} -- WRMSRNS instruction.
+
@item
@code{X2APIC} -- x2APIC.
diff --git a/sysdeps/x86/bits/platform/x86.h b/sysdeps/x86/bits/platform/x86.h
index 74b7f951e1..2a15ad937a 100644
--- a/sysdeps/x86/bits/platform/x86.h
+++ b/sysdeps/x86/bits/platform/x86.h
@@ -297,6 +297,7 @@ enum
x86_cpu_FZLRM = x86_cpu_index_7_ecx_1_eax + 10,
x86_cpu_FSRS = x86_cpu_index_7_ecx_1_eax + 11,
x86_cpu_FSRCS = x86_cpu_index_7_ecx_1_eax + 12,
+ x86_cpu_WRMSRNS = x86_cpu_index_7_ecx_1_eax + 19,
x86_cpu_HRESET = x86_cpu_index_7_ecx_1_eax + 22,
x86_cpu_LAM = x86_cpu_index_7_ecx_1_eax + 26,
diff --git a/sysdeps/x86/tst-get-cpu-features.c b/sysdeps/x86/tst-get-cpu-features.c
index 329d4aafb4..9c436eaa64 100644
--- a/sysdeps/x86/tst-get-cpu-features.c
+++ b/sysdeps/x86/tst-get-cpu-features.c
@@ -209,6 +209,7 @@ do_test (void)
CHECK_CPU_FEATURE_PRESENT (FZLRM);
CHECK_CPU_FEATURE_PRESENT (FSRS);
CHECK_CPU_FEATURE_PRESENT (FSRCS);
+ CHECK_CPU_FEATURE_PRESENT (WRMSRNS);
CHECK_CPU_FEATURE_PRESENT (HRESET);
CHECK_CPU_FEATURE_PRESENT (LAM);
CHECK_CPU_FEATURE_PRESENT (AESKLE);
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