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KVM: LAPIC: ignore pending timers if LVTT is disabled

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Only use the APIC pending timers count to break out of HLT emulation if
the timer vector is enabled.

Certain configurations of Windows simply mask out the vector without
disabling the timer.

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
This commit is contained in:
Marcelo Tosatti 2008-05-14 02:29:06 -03:00 committed by Avi Kivity
parent 1fc9d2bf75
commit 54aaacee35
1 changed files with 1 additions and 1 deletions
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2
arch/x86/kvm/lapic.c
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@ -957,7 +957,7 @@ int apic_has_pending_timer(struct kvm_vcpu *vcpu)
{
struct kvm_lapic *lapic = vcpu->arch.apic;
if (lapic)
if (lapic && apic_enabled(lapic) && apic_lvt_enabled(lapic, APIC_LVTT))
return atomic_read(&lapic->timer.pending);
return 0;