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| author | Wei Wang <wei.w.wang@intel.com> | 2014-11-05 10:53:43 +0800 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2014-11-07 15:44:00 +0100 |
| commit | 4114c27d450bef228be9c7b0c40a888e18a3a636 (patch) | |
| tree | 4bc1ec2876070095e191cab210fd2896fdd5ccdf /arch/x86/kvm/lapic.c | |
| parent | a2ae9df7c991eca6c1ee6f42dbb18701a64175c3 (diff) | |
| download | linux-4114c27d450bef228be9c7b0c40a888e18a3a636.tar.gz linux-4114c27d450bef228be9c7b0c40a888e18a3a636.tar.bz2 linux-4114c27d450bef228be9c7b0c40a888e18a3a636.zip | |
KVM: x86: reset RVI upon system reset
A bug was reported as follows: when running Windows 7 32-bit guests on qemu-kvm,
sometimes the guests run into blue screen during reboot. The problem was that a
guest's RVI was not cleared when it rebooted. This patch has fixed the problem.
Signed-off-by: Wei Wang <wei.w.wang@intel.com>
Signed-off-by: Yang Zhang <yang.z.zhang@intel.com>
Tested-by: Rongrong Liu <rongrongx.liu@intel.com>, Da Chun <ngugc@qq.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/kvm/lapic.c')
| -rw-r--r-- | arch/x86/kvm/lapic.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c index 5f574b4add90..e7f7fc632a9b 100644 --- a/arch/x86/kvm/lapic.c +++ b/arch/x86/kvm/lapic.c @@ -1714,6 +1714,9 @@ void kvm_apic_post_state_restore(struct kvm_vcpu *vcpu, apic->isr_count = kvm_apic_vid_enabled(vcpu->kvm) ? 1 : count_vectors(apic->regs + APIC_ISR); apic->highest_isr_cache = -1; + if (kvm_x86_ops->hwapic_irr_update) + kvm_x86_ops->hwapic_irr_update(vcpu, + apic_find_highest_irr(apic)); kvm_x86_ops->hwapic_isr_update(vcpu->kvm, apic_find_highest_isr(apic)); kvm_make_request(KVM_REQ_EVENT, vcpu); kvm_rtc_eoi_tracking_restore_one(vcpu); |