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Subject[PATCH v2 3/3] KVM: LAPIC: Ignore timer migration when lapic timer is injected by posted-interrupt
Date
From: Wanpeng Li <wanpengli@tencent.com>

When lapic timer is injected by posted-interrupt, the emulated timer is
offload to the housekeeping cpu. The timer interrupt will be delivered
properly, no need to migrate timer.

Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Radim Krčmář <rkrcmar@redhat.com>
Signed-off-by: Wanpeng Li <wanpengli@tencent.com>
---
arch/x86/kvm/lapic.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c
index c08e5a8..a3e4ca8 100644
--- a/arch/x86/kvm/lapic.c
+++ b/arch/x86/kvm/lapic.c
@@ -2532,7 +2532,8 @@ void __kvm_migrate_apic_timer(struct kvm_vcpu *vcpu)
{
struct hrtimer *timer;

- if (!lapic_in_kernel(vcpu))
+ if (!lapic_in_kernel(vcpu) ||
+ posted_interrupt_inject_timer_enabled(vcpu))
return;

timer = &vcpu->arch.apic->lapic_timer.timer;
--
2.7.4
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