diff options
Diffstat (limited to 'arch/x86/kvm/lapic.c')
| -rw-r--r-- | arch/x86/kvm/lapic.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c index 890f218ddd7a..09edd32b8e42 100644 --- a/arch/x86/kvm/lapic.c +++ b/arch/x86/kvm/lapic.c @@ -1806,14 +1806,17 @@ void kvm_lapic_set_base(struct kvm_vcpu *vcpu, u64 value) u64 old_value = vcpu->arch.apic_base; struct kvm_lapic *apic = vcpu->arch.apic; - if (!apic) { + if (!apic) value |= MSR_IA32_APICBASE_BSP; - vcpu->arch.apic_base = value; - return; - } vcpu->arch.apic_base = value; + if ((old_value ^ value) & MSR_IA32_APICBASE_ENABLE) + kvm_update_cpuid(vcpu); + + if (!apic) + return; + /* update jump label if enable bit changes */ if ((old_value ^ value) & MSR_IA32_APICBASE_ENABLE) { if (value & MSR_IA32_APICBASE_ENABLE) { |