diff options
| -rw-r--r-- | target-i386/kvm.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/target-i386/kvm.c b/target-i386/kvm.c index 1f943c5..aabac72 100644 --- a/target-i386/kvm.c +++ b/target-i386/kvm.c @@ -196,6 +196,11 @@ uint32_t kvm_arch_get_supported_cpuid(KVMState *s, uint32_t function, if (function == 1 && reg == R_EDX) { /* KVM before 2.6.30 misreports the following features */ ret |= CPUID_MTRR | CPUID_PAT | CPUID_MCE | CPUID_MCA; + } else if (function == 1 && reg == R_ECX) { + /* We can set the hypervisor flag, even if KVM does not return it on + * GET_SUPPORTED_CPUID + */ + ret |= CPUID_EXT_HYPERVISOR; } else if (function == 0x80000001 && reg == R_EDX) { /* On Intel, kvm returns cpuid according to the Intel spec, * so add missing bits according to the AMD spec: @@ -399,10 +404,8 @@ int kvm_arch_init_vcpu(CPUX86State *env) env->cpuid_features &= kvm_arch_get_supported_cpuid(s, 1, 0, R_EDX); - i = env->cpuid_ext_features & CPUID_EXT_HYPERVISOR; j = env->cpuid_ext_features & CPUID_EXT_TSC_DEADLINE_TIMER; env->cpuid_ext_features &= kvm_arch_get_supported_cpuid(s, 1, 0, R_ECX); - env->cpuid_ext_features |= i; if (j && kvm_irqchip_in_kernel() && kvm_check_extension(s, KVM_CAP_TSC_DEADLINE_TIMER)) { env->cpuid_ext_features |= CPUID_EXT_TSC_DEADLINE_TIMER; |