diff options
| -rw-r--r-- | arch/x86/kvm/cpuid.c | 6 | ||||
| -rw-r--r-- | arch/x86/kvm/reverse_cpuid.h | 5 |
2 files changed, 10 insertions, 1 deletions
diff --git a/arch/x86/kvm/cpuid.c b/arch/x86/kvm/cpuid.c index 5dfc0d036df5..b6ce47c4e972 100644 --- a/arch/x86/kvm/cpuid.c +++ b/arch/x86/kvm/cpuid.c @@ -667,6 +667,10 @@ void kvm_set_cpu_caps(void) F(AVX_IFMA) ); + kvm_cpu_cap_init_kvm_defined(CPUID_7_1_EDX, + F(AVX_VNNI_INT8) + ); + kvm_cpu_cap_mask(CPUID_D_1_EAX, F(XSAVEOPT) | F(XSAVEC) | F(XGETBV1) | F(XSAVES) | f_xfd ); @@ -920,9 +924,9 @@ static inline int __do_cpuid_func(struct kvm_cpuid_array *array, u32 function) goto out; cpuid_entry_override(entry, CPUID_7_1_EAX); + cpuid_entry_override(entry, CPUID_7_1_EDX); entry->ebx = 0; entry->ecx = 0; - entry->edx = 0; } break; case 0xa: { /* Architectural Performance Monitoring */ diff --git a/arch/x86/kvm/reverse_cpuid.h b/arch/x86/kvm/reverse_cpuid.h index 443a6b3e66c0..84f56b662424 100644 --- a/arch/x86/kvm/reverse_cpuid.h +++ b/arch/x86/kvm/reverse_cpuid.h @@ -13,6 +13,7 @@ */ enum kvm_only_cpuid_leafs { CPUID_12_EAX = NCAPINTS, + CPUID_7_1_EDX, NR_KVM_CPU_CAPS, NKVMCAPINTS = NR_KVM_CPU_CAPS - NCAPINTS, @@ -36,6 +37,9 @@ enum kvm_only_cpuid_leafs { #define KVM_X86_FEATURE_SGX1 KVM_X86_FEATURE(CPUID_12_EAX, 0) #define KVM_X86_FEATURE_SGX2 KVM_X86_FEATURE(CPUID_12_EAX, 1) +/* Intel-defined sub-features, CPUID level 0x00000007:1 (EDX) */ +#define X86_FEATURE_AVX_VNNI_INT8 KVM_X86_FEATURE(CPUID_7_1_EDX, 4) + struct cpuid_reg { u32 function; u32 index; @@ -60,6 +64,7 @@ static const struct cpuid_reg reverse_cpuid[] = { [CPUID_7_1_EAX] = { 7, 1, CPUID_EAX}, [CPUID_12_EAX] = {0x00000012, 0, CPUID_EAX}, [CPUID_8000_001F_EAX] = {0x8000001f, 0, CPUID_EAX}, + [CPUID_7_1_EDX] = { 7, 1, CPUID_EDX}, }; /* |