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| author | Stanislav Lanci <pixo@polepetko.eu> | 2018-01-29 17:39:44 +0100 |
|---|---|---|
| committer | Radim Krčmář <rkrcmar@redhat.com> | 2018-01-31 18:25:34 +0100 |
| commit | 806793f5f76eb9c000ed05e307a8f7e9450b3291 (patch) | |
| tree | a07d9bba90a8fd79688792e133b5ade01cf64b1f | |
| parent | x86/kvm/vmx: do not use vm-exit instruction length for fast MMIO when running... (diff) | |
| download | linux-806793f5f76eb9c000ed05e307a8f7e9450b3291.tar.xz linux-806793f5f76eb9c000ed05e307a8f7e9450b3291.zip | |
KVM: x86: AMD Processor Topology Information
This patch allow to enable x86 feature TOPOEXT. This is needed to provide
information about SMT on AMD Zen CPUs to the guest.
Signed-off-by: Stanislav Lanci <pixo@polepetko.eu>
Tested-by: Nick Sarnie <commendsarnex@gmail.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Babu Moger <babu.moger@amd.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
| -rw-r--r-- | arch/x86/kvm/cpuid.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/x86/kvm/cpuid.c b/arch/x86/kvm/cpuid.c index ac0041c2f5af..20e491b94f44 100644 --- a/arch/x86/kvm/cpuid.c +++ b/arch/x86/kvm/cpuid.c @@ -371,7 +371,8 @@ static inline int __do_cpuid_ent(struct kvm_cpuid_entry2 *entry, u32 function, F(LAHF_LM) | F(CMP_LEGACY) | 0 /*SVM*/ | 0 /* ExtApicSpace */ | F(CR8_LEGACY) | F(ABM) | F(SSE4A) | F(MISALIGNSSE) | F(3DNOWPREFETCH) | F(OSVW) | 0 /* IBS */ | F(XOP) | - 0 /* SKINIT, WDT, LWP */ | F(FMA4) | F(TBM); + 0 /* SKINIT, WDT, LWP */ | F(FMA4) | F(TBM) | + F(TOPOEXT); /* cpuid 0xC0000001.edx */ const u32 kvm_cpuid_C000_0001_edx_x86_features = |