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From: H.J. Lu <hjl@gcc.gnu.org>
To: gcc-cvs@gcc.gnu.org
Subject: [gcc r12-7742] x86: Properly check FEATURE_AESKLE
Date: Mon, 21 Mar 2022 21:50:45 +0000 (GMT) [thread overview]
Message-ID: <20220321215045.165063857419@sourceware.org> (raw)
https://gcc.gnu.org/g:d0363a80690a299179d010c1d8a6d6430e7eb73f
commit r12-7742-gd0363a80690a299179d010c1d8a6d6430e7eb73f
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Mon Mar 21 06:50:14 2022 -0700
x86: Properly check FEATURE_AESKLE
1. Pass 0x19 to __cpuid for bit_AESKLE.
2. Enable FEATURE_AESKLE only if bit_AESKLE is set.
PR target/104998
* common/config/i386/cpuinfo.h (get_available_features): Pass
0x19 to __cpuid for bit_AESKLE. Enable FEATURE_AESKLE only if
bit_AESKLE is set.
Diff:
---
gcc/common/config/i386/cpuinfo.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/gcc/common/config/i386/cpuinfo.h b/gcc/common/config/i386/cpuinfo.h
index 61b1a0f291c..239759dc766 100644
--- a/gcc/common/config/i386/cpuinfo.h
+++ b/gcc/common/config/i386/cpuinfo.h
@@ -779,11 +779,11 @@ get_available_features (struct __processor_model *cpu_model,
/* Get Advanced Features at level 0x19 (eax = 0x19). */
if (max_cpuid_level >= 0x19)
{
- set_feature (FEATURE_AESKLE);
- __cpuid (19, eax, ebx, ecx, edx);
+ __cpuid (0x19, eax, ebx, ecx, edx);
/* Check if OS support keylocker. */
if (ebx & bit_AESKLE)
{
+ set_feature (FEATURE_AESKLE);
if (ebx & bit_WIDEKL)
set_feature (FEATURE_WIDEKL);
if (has_kl)
reply other threads:[~2022-03-21 21:50 UTC|newest]
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