KVM: x86: properly restore LVT0

[karo-tx-linux.git] / arch / x86 / kvm / lapic.c

diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c
index 36e9de1b4127c5576ceb292c6ef320eae830df24..e0f721bfabcb42fd6b73545c382501100c8c851e 100644 (file)
--- a/arch/x86/kvm/lapic.c
+++ b/arch/x86/kvm/lapic.c
@@ -1263,10 +1263,10 @@ static void apic_manage_nmi_watchdog(struct kvm_lapic *apic, u32 lvt0_val)
                if (!nmi_wd_enabled) {
                        apic_debug("Receive NMI setting on APIC_LVT0 "
                                   "for cpu %d\n", apic->vcpu->vcpu_id);
-                       apic->vcpu->kvm->arch.vapics_in_nmi_mode++;
+                       atomic_inc(&apic->vcpu->kvm->arch.vapics_in_nmi_mode);
                }
        } else if (nmi_wd_enabled)
-               apic->vcpu->kvm->arch.vapics_in_nmi_mode--;
+               atomic_dec(&apic->vcpu->kvm->arch.vapics_in_nmi_mode);
 }
 
 static int apic_reg_write(struct kvm_lapic *apic, u32 reg, u32 val)
@@ -1822,6 +1822,7 @@ void kvm_apic_post_state_restore(struct kvm_vcpu *vcpu,
        apic_update_ppr(apic);
        hrtimer_cancel(&apic->lapic_timer.timer);
        apic_update_lvtt(apic);
+       apic_manage_nmi_watchdog(apic, kvm_apic_get_reg(apic, APIC_LVT0));
        update_divide_count(apic);
        start_apic_timer(apic);
        apic->irr_pending = true;