KVM: arm/arm64: vgic: Relax vgic_can_sample_irq for edge IRQs

We only set the irq_queued flag for level interrupts, meaning
that "!vgic_irq_is_queued(vcpu, irq)" is a good enough predicate
for all interrupts.

This will allow us to inject edge HW interrupts, for which the
state ACTIVE+PENDING is not allowed.

Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>

diff --git a/virt/kvm/arm/vgic.c b/virt/kvm/arm/vgic.c
index bc40137a022d51e451913f3011639e196ddd135b..5bd1695845a3632bfb2f0ca27844b9030358d909 100644 (file)
--- a/virt/kvm/arm/vgic.c
+++ b/virt/kvm/arm/vgic.c
@@ -375,7 +375,7 @@ void vgic_cpu_irq_clear(struct kvm_vcpu *vcpu, int irq)
 
 static bool vgic_can_sample_irq(struct kvm_vcpu *vcpu, int irq)
 {
-       return vgic_irq_is_edge(vcpu, irq) || !vgic_irq_is_queued(vcpu, irq);
+       return !vgic_irq_is_queued(vcpu, irq);
 }
 
 /**