about summary refs log tree commit diff
diff options
context:
space:
mode:
authorH.J. Lu <hjl.tools@gmail.com>2023-04-05 09:21:37 -0700
committerH.J. Lu <hjl.tools@gmail.com>2023-04-05 14:46:10 -0700
commit227983551d3b590e1a9ed4e81d793b7f6abfadd2 (patch)
treeb92ecd02977f148c0efc78a1af7da93fb90cb5e5
parenta00db8305db02231cea6e3806d86526d209a580c (diff)
downloadglibc-227983551d3b590e1a9ed4e81d793b7f6abfadd2.tar.gz
glibc-227983551d3b590e1a9ed4e81d793b7f6abfadd2.tar.xz
glibc-227983551d3b590e1a9ed4e81d793b7f6abfadd2.zip
<sys/platform/x86.h>: Add WRMSRNS support
Add WRMSRNS support to <sys/platform/x86.h>.
Reviewed-by: Noah Goldstein <goldstein.w.n@gmail.com>
-rw-r--r--manual/platform.texi3
-rw-r--r--sysdeps/x86/bits/platform/x86.h1
-rw-r--r--sysdeps/x86/tst-get-cpu-features.c1
3 files changed, 5 insertions, 0 deletions
diff --git a/manual/platform.texi b/manual/platform.texi
index ecee3a7b39..af79f5eb4d 100644
--- a/manual/platform.texi
+++ b/manual/platform.texi
@@ -680,6 +680,9 @@ using a TSC deadline value.
 @code{WIDE_KL} -- AES wide Key Locker instructions.
 
 @item
+@code{WRMSRNS} -- WRMSRNS instruction.
+
+@item
 @code{X2APIC} -- x2APIC.
 
 @item
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);