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[Qemu-devel] [PATCH 3/7] i386: Add spec-ctrl CPUID bit
From: |
Eduardo Habkost |
Subject: |
[Qemu-devel] [PATCH 3/7] i386: Add spec-ctrl CPUID bit |
Date: |
Tue, 9 Jan 2018 13:45:15 -0200 |
Add the feature name and a CPUID_7_0_EDX_SPEC_CTRL macro.
Signed-off-by: Eduardo Habkost <address@hidden>
---
target/i386/cpu.h | 1 +
target/i386/cpu.c | 2 +-
2 files changed, 2 insertions(+), 1 deletion(-)
diff --git a/target/i386/cpu.h b/target/i386/cpu.h
index 07f47997d6..de387c1311 100644
--- a/target/i386/cpu.h
+++ b/target/i386/cpu.h
@@ -667,6 +667,7 @@ 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_XSAVE_XSAVEOPT (1U << 0)
#define CPUID_XSAVE_XSAVEC (1U << 1)
diff --git a/target/i386/cpu.c b/target/i386/cpu.c
index 9f4f949899..1be1642eb2 100644
--- a/target/i386/cpu.c
+++ b/target/i386/cpu.c
@@ -459,7 +459,7 @@ static FeatureWordInfo feature_word_info[FEATURE_WORDS] = {
NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL,
+ NULL, NULL, "spec-ctrl", NULL,
NULL, NULL, NULL, NULL,
},
.cpuid_eax = 7,
--
2.14.3
- [Qemu-devel] [PATCH 0/7] CPU model updates for CVE-2017-5715 (Spectre variant #2), Eduardo Habkost, 2018/01/09
- [Qemu-devel] [PATCH 4/7] i386: Add FEAT_8000_0008_EBX CPUID feature word, Eduardo Habkost, 2018/01/09
- [Qemu-devel] [PATCH 6/7] [RFC] i386: Add EPYC-IBPB CPU model, Eduardo Habkost, 2018/01/09
- [Qemu-devel] [PATCH 5/7] i386: Add new -IBRS versions of Intel CPU models, Eduardo Habkost, 2018/01/09
- [Qemu-devel] [PATCH 7/7] [RFC] i386: Add PCID to {Westmere, SandyBridge, IvyBridge}-IBRS, Eduardo Habkost, 2018/01/09
- Re: [Qemu-devel] [PATCH 0/7] CPU model updates for CVE-2017-5715 (Spectre variant #2), no-reply, 2018/01/10
- Re: [Qemu-devel] [PATCH 0/7] CPU model updates for CVE-2017-5715 (Spectre variant #2), Eduardo Habkost, 2018/01/12
- Re: [Qemu-devel] [PATCH 0/7] CPU model updates for CVE-2017-5715 (Spectre variant #2), Eduardo Habkost, 2018/01/15