[glibc] <sys/platform/x86.h>: Add SGX-KEYS support

[glibc] <sys/platform/x86.h>: Add SGX-KEYS support

[H.J. Lu]

https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=f6790a489dda2118729cc2917cc9a9c942e7d2cb

commit f6790a489dda2118729cc2917cc9a9c942e7d2cb
Author: H.J. Lu <hjl.tools@gmail.com>
Date:   Wed Apr 5 09:21:30 2023 -0700

    <sys/platform/x86.h>: Add SGX-KEYS support
    
    Add SGX-KEYS 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    | 2 +-
 sysdeps/x86/tst-get-cpu-features.c | 1 +
 3 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/manual/platform.texi b/manual/platform.texi
index 78ee39f650..4453f6e1f4 100644
--- a/manual/platform.texi
+++ b/manual/platform.texi
@@ -551,6 +551,9 @@ capability.
 @item
 @code{SGX} -- Intel Software Guard Extensions.
 
+@item
+@code{SGX_KEYS} -- Attestation Services for SGX.
+
 @item
 @code{SGX_LC} -- SGX Launch Configuration.
 
diff --git a/sysdeps/x86/bits/platform/x86.h b/sysdeps/x86/bits/platform/x86.h
index e25f1ac53c..ee5be8190f 100644
--- a/sysdeps/x86/bits/platform/x86.h
+++ b/sysdeps/x86/bits/platform/x86.h
@@ -201,7 +201,7 @@ enum
        + cpuid_register_index_edx * 8 * sizeof (unsigned int)),
 
   x86_cpu_INDEX_7_EDX_0		= x86_cpu_index_7_edx,
-  x86_cpu_INDEX_7_EDX_1		= x86_cpu_index_7_edx + 1,
+  x86_cpu_SGX_KEYS		= x86_cpu_index_7_edx + 1,
   x86_cpu_AVX512_4VNNIW		= x86_cpu_index_7_edx + 2,
   x86_cpu_AVX512_4FMAPS		= x86_cpu_index_7_edx + 3,
   x86_cpu_FSRM			= x86_cpu_index_7_edx + 4,
diff --git a/sysdeps/x86/tst-get-cpu-features.c b/sysdeps/x86/tst-get-cpu-features.c
index dcb735ddd6..1979da2174 100644
--- a/sysdeps/x86/tst-get-cpu-features.c
+++ b/sysdeps/x86/tst-get-cpu-features.c
@@ -154,6 +154,7 @@ do_test (void)
   CHECK_CPU_FEATURE_PRESENT (ENQCMD);
   CHECK_CPU_FEATURE_PRESENT (SGX_LC);
   CHECK_CPU_FEATURE_PRESENT (PKS);
+  CHECK_CPU_FEATURE_PRESENT (SGX_KEYS);
   CHECK_CPU_FEATURE_PRESENT (AVX512_4VNNIW);
   CHECK_CPU_FEATURE_PRESENT (AVX512_4FMAPS);
   CHECK_CPU_FEATURE_PRESENT (FSRM);