[12/19] <sys/platform/x86.h>: Add WRMSRNS support
Commit Message
Add WRMSRNS support to <sys/platform/x86.h>.
---
manual/platform.texi | 3 +++
sysdeps/x86/bits/platform/x86.h | 1 +
sysdeps/x86/tst-get-cpu-features.c | 1 +
3 files changed, 5 insertions(+)
Comments
On Wed, Apr 5, 2023 at 11:23 AM H.J. Lu via Libc-alpha
<libc-alpha@sourceware.org> wrote:
>
> Add WRMSRNS support to <sys/platform/x86.h>.
> ---
> 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);
> --
> 2.39.2
>
LGTM
Reviewed-by: Noah Goldstein <goldstein.w.n@gmail.com>
@@ -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.
@@ -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,
@@ -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);