From: H.J. Lu <hjl.tools@gmail.com>
Date: Wed, 5 Apr 2023 16:21:37 +0000 (-0700)
Subject: <sys/platform/x86.h>: Add WRMSRNS support
X-Git-Tag: glibc-2.38~402
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=227983551d3b590e1a9ed4e81d793b7f6abfadd2;p=thirdparty%2Fglibc.git

<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 --git a/manual/platform.texi b/manual/platform.texi
index ecee3a7b399..af79f5eb4d7 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 74b7f951e17..2a15ad937a8 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 329d4aafb45..9c436eaa64b 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);