diff options
| -rw-r--r-- | arch/x86/kvm/x86.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index c673e726fbdb..651cf9004fbe 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -2227,6 +2227,11 @@ out: return r; } +static void cpuid_mask(u32 *word, int wordnum) +{ + *word &= boot_cpu_data.x86_capability[wordnum]; +} + static void do_cpuid_1_ent(struct kvm_cpuid_entry2 *entry, u32 function, u32 index) { @@ -2301,7 +2306,9 @@ static void do_cpuid_ent(struct kvm_cpuid_entry2 *entry, u32 function, break; case 1: entry->edx &= kvm_supported_word0_x86_features; + cpuid_mask(&entry->edx, 0); entry->ecx &= kvm_supported_word4_x86_features; + cpuid_mask(&entry->ecx, 4); /* we support x2apic emulation even if host does not support * it since we emulate x2apic in software */ entry->ecx |= F(X2APIC); @@ -2392,7 +2399,9 @@ static void do_cpuid_ent(struct kvm_cpuid_entry2 *entry, u32 function, break; case 0x80000001: entry->edx &= kvm_supported_word1_x86_features; + cpuid_mask(&entry->edx, 1); entry->ecx &= kvm_supported_word6_x86_features; + cpuid_mask(&entry->ecx, 6); break; } |