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KVM: x86: AMD Processor Topology Information

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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>
This commit is contained in:
Stanislav Lanci 2018-01-29 11:39:44 -05:00 committed by Radim Krčmář
parent d391f12070
commit 806793f5f7
1 changed files with 2 additions and 1 deletions
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arch/x86/kvm/cpuid.c
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@ -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(LAHF_LM) | F(CMP_LEGACY) | 0 /*SVM*/ | 0 /* ExtApicSpace */ |
F(CR8_LEGACY) | F(ABM) | F(SSE4A) | F(MISALIGNSSE) | F(CR8_LEGACY) | F(ABM) | F(SSE4A) | F(MISALIGNSSE) |
F(3DNOWPREFETCH) | F(OSVW) | 0 /* IBS */ | F(XOP) | 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 */ /* cpuid 0xC0000001.edx */
const u32 kvm_cpuid_C000_0001_edx_x86_features = const u32 kvm_cpuid_C000_0001_edx_x86_features =