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i386: Add MSR feature bit for MDS-NO

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Define MSR_ARCH_CAP_MDS_NO in the IA32_ARCH_CAPABILITIES MSR to allow
CPU models to report the feature when host supports it.

Backports commit 77b168d221191156c47fcd8d1c47329dfdb9439e from qemu
This commit is contained in:
Cathy Zhang 2020-01-14 07:52:12 -05:00 committed by Lioncash
parent 639c5c4fe2
commit 8c0ed30d38
1 changed files with 1 additions and 0 deletions
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qemu/target/i386/cpu.h
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@ -722,6 +722,7 @@ typedef uint32_t FeatureWordArray[FEATURE_WORDS];
#define MSR_ARCH_CAP_RSBA (1U << 2) #define MSR_ARCH_CAP_RSBA (1U << 2)
#define MSR_ARCH_CAP_SKIP_L1DFL_VMENTRY (1U << 3) #define MSR_ARCH_CAP_SKIP_L1DFL_VMENTRY (1U << 3)
#define MSR_ARCH_CAP_SSB_NO (1U << 4) #define MSR_ARCH_CAP_SSB_NO (1U << 4)
#define MSR_ARCH_CAP_MDS_NO (1U << 5)
#define MSR_CORE_CAP_SPLIT_LOCK_DETECT (1U << 5) #define MSR_CORE_CAP_SPLIT_LOCK_DETECT (1U << 5)