From: Stanislav Lanci <pixo@xxxxxxxxxxxx> 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@xxxxxxxxxxxx> Tested-by: Nick Sarnie <commendsarnex@xxxxxxxxx> Reviewed-by: Paolo Bonzini <pbonzini@xxxxxxxxxx> Signed-off-by: Babu Moger <babu.moger@xxxxxxx> --- Rebased on top of linux-next. Maximum extended functions are already set to 0x8000001f after the commit 8765d75329a3 KVM: X86: Extend CPUID range to include new leaf arch/x86/kvm/cpuid.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) 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 = -- 2.16.0
