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[Qemu-devel] [PULL 5/8] i386: Add CPUID bit for WBNOINVD
From: |
Eduardo Habkost |
Subject: |
[Qemu-devel] [PULL 5/8] i386: Add CPUID bit for WBNOINVD |
Date: |
Thu, 16 Aug 2018 22:33:57 -0300 |
From: Robert Hoo <address@hidden>
WBNOINVD: Write back and do not invalidate cache, enumerated by
CPUID.(EAX=80000008H, ECX=0):EBX[bit 9].
Signed-off-by: Robert Hoo <address@hidden>
Message-Id: <address@hidden>
Signed-off-by: Eduardo Habkost <address@hidden>
---
target/i386/cpu.h | 2 ++
target/i386/cpu.c | 2 +-
2 files changed, 3 insertions(+), 1 deletion(-)
diff --git a/target/i386/cpu.h b/target/i386/cpu.h
index 4a95c63640..9cad5812cd 100644
--- a/target/i386/cpu.h
+++ b/target/i386/cpu.h
@@ -694,6 +694,8 @@ typedef uint32_t FeatureWordArray[FEATURE_WORDS];
#define CPUID_7_0_EDX_ARCH_CAPABILITIES (1U << 29) /*Arch Capabilities*/
#define CPUID_7_0_EDX_SPEC_CTRL_SSBD (1U << 31) /* Speculative Store Bypass
Disable */
+#define CPUID_8000_0008_EBX_WBNOINVD (1U << 9) /* Write back and
+
do not invalidate cache */
#define CPUID_8000_0008_EBX_IBPB (1U << 12) /* Indirect Branch Prediction
Barrier */
#define CPUID_XSAVE_XSAVEOPT (1U << 0)
diff --git a/target/i386/cpu.c b/target/i386/cpu.c
index 3e25773d26..4f08cedfcf 100644
--- a/target/i386/cpu.c
+++ b/target/i386/cpu.c
@@ -1028,7 +1028,7 @@ static FeatureWordInfo feature_word_info[FEATURE_WORDS] =
{
.feat_names = {
NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL,
+ NULL, "wbnoinvd", NULL, NULL,
"ibpb", NULL, NULL, NULL,
NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL,
--
2.18.0.rc1.1.g3f1ff2140
- [Qemu-devel] [PULL 0/8] x86 queue, 2018-08-16, Eduardo Habkost, 2018/08/16
- [Qemu-devel] [PULL 2/8] i386: Add new MSR indices for IA32_PRED_CMD and IA32_ARCH_CAPABILITIES, Eduardo Habkost, 2018/08/16
- [Qemu-devel] [PULL 3/8] i386: Add CPUID bit and feature words for IA32_ARCH_CAPABILITIES MSR, Eduardo Habkost, 2018/08/16
- [Qemu-devel] [PULL 1/8] docs: add guidance on configuring CPU models for x86, Eduardo Habkost, 2018/08/16
- [Qemu-devel] [PULL 4/8] i386: Add CPUID bit for PCONFIG, Eduardo Habkost, 2018/08/16
- [Qemu-devel] [PULL 5/8] i386: Add CPUID bit for WBNOINVD,
Eduardo Habkost <=
- [Qemu-devel] [PULL 7/8] target-i386: adds PV_SEND_IPI CPUID feature bit, Eduardo Habkost, 2018/08/16
- [Qemu-devel] [PULL 6/8] i386: Add new CPU model Icelake-{Server, Client}, Eduardo Habkost, 2018/08/16
- [Qemu-devel] [PULL 8/8] i386: Disable TOPOEXT by default on "-cpu host", Eduardo Habkost, 2018/08/16
- Re: [Qemu-devel] [PULL 0/8] x86 queue, 2018-08-16, Peter Maydell, 2018/08/17
- Re: [Qemu-devel] [PULL 0/8] x86 queue, 2018-08-16, no-reply, 2018/08/17