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KVM: lapic: do not set KVM_REQ_EVENT unnecessarily on PPR update 

On PPR update, we set KVM_REQ_EVENT unconditionally anytime PPR is lowered.
But we can take into account IRR here already.

Reviewed-by: Roman Kagan <rkagan@virtuozzo.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2016-12-18 13:54:58 +01:00 committed by Radim Krčmář
parent b3c045d332
commit 26fbbee581
1 changed files with 2 additions and 1 deletions
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3
arch/x86/kvm/lapic.c
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@ -607,7 +607,8 @@ static void apic_update_ppr(struct kvm_lapic *apic)
{ {
u32 ppr; u32 ppr;
if (__apic_update_ppr(apic, &ppr)) if (__apic_update_ppr(apic, &ppr) &&
apic_has_interrupt_for_ppr(apic, ppr) != -1)
kvm_make_request(KVM_REQ_EVENT, apic->vcpu); kvm_make_request(KVM_REQ_EVENT, apic->vcpu);
} }