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[Qemu-devel] [PATCH v2 2/5] i386: Add CPUID bit and feature words for IA
From: |
Robert Hoo |
Subject: |
[Qemu-devel] [PATCH v2 2/5] i386: Add CPUID bit and feature words for IA32_ARCH_CAPABILITIES MSR |
Date: |
Wed, 27 Jun 2018 19:27:21 +0800 |
Support of IA32_PRED_CMD MSR already be enumerated by same CPUID bit as
SPEC_CTRL.
Signed-off-by: Robert Hoo <address@hidden>
---
target/i386/cpu.c | 2 +-
target/i386/cpu.h | 1 +
2 files changed, 2 insertions(+), 1 deletion(-)
diff --git a/target/i386/cpu.c b/target/i386/cpu.c
index e6c2f8a..953098c 100644
--- a/target/i386/cpu.c
+++ b/target/i386/cpu.c
@@ -1002,7 +1002,7 @@ static FeatureWordInfo feature_word_info[FEATURE_WORDS] =
{
NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL,
NULL, NULL, "spec-ctrl", NULL,
- NULL, NULL, NULL, "ssbd",
+ NULL, "arch-capabilities", NULL, "ssbd",
},
.cpuid_eax = 7,
.cpuid_needs_ecx = true, .cpuid_ecx = 0,
diff --git a/target/i386/cpu.h b/target/i386/cpu.h
index 734a73e..1ef2040 100644
--- a/target/i386/cpu.h
+++ b/target/i386/cpu.h
@@ -688,6 +688,7 @@ typedef uint32_t FeatureWordArray[FEATURE_WORDS];
#define CPUID_7_0_EDX_AVX512_4VNNIW (1U << 2) /* AVX512 Neural Network
Instructions */
#define CPUID_7_0_EDX_AVX512_4FMAPS (1U << 3) /* AVX512 Multiply Accumulation
Single Precision */
#define CPUID_7_0_EDX_SPEC_CTRL (1U << 26) /* Speculation Control */
+#define CPUID_7_0_EDX_ARCH_CAPABILITIES (1U << 29) /*Arch Capabilities of
RDCL_NO and IBRS_ALL*/
#define CPUID_7_0_EDX_SPEC_CTRL_SSBD (1U << 31) /* Speculative Store Bypass
Disable */
#define CPUID_8000_0008_EBX_IBPB (1U << 12) /* Indirect Branch Prediction
Barrier */
--
1.8.3.1