From: Wanpeng Li <wanpengli@xxxxxxxxxxx>
[ Upstream commit 619f51da097952194a5d4d6a6c5f9ef3b9d1b25a ]
The timer is disarmed when switching between TSC deadline and other modes;
however, the pending timer is still in-flight, so let's accurately remove
any traces of the previous mode.
Fixes: 4427593258 ("KVM: x86: thoroughly disarm LAPIC timer around TSC deadline switch")
Signed-off-by: Wanpeng Li <wanpengli@xxxxxxxxxxx>
Signed-off-by: Paolo Bonzini <pbonzini@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
arch/x86/kvm/lapic.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c
index 970d5c740b00..dd12c15b69e6 100644
--- a/arch/x86/kvm/lapic.c
+++ b/arch/x86/kvm/lapic.c
@@ -1508,6 +1508,7 @@ static void cancel_apic_timer(struct kvm_lapic *apic)
if (apic->lapic_timer.hv_timer_in_use)
cancel_hv_timer(apic);
preempt_enable();
+ atomic_set(&apic->lapic_timer.pending, 0);
}
static void apic_update_lvtt(struct kvm_lapic *apic)
--
2.35.1
