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KVM: arm/arm64: vgic: Fix kvm_vgic_map_is_active's dist check 

External inputs to the vgic from time to time need to poke into the
state of a virtual interrupt, the prime example is the architected timer
code.

Since the IRQ's active state can be represented in two places; the LR or
the distributor, we first loop over the LRs but if not active in the LRs
we just return if *any* IRQ is active on the VCPU in question.

This is of course bogus, as we should check if the specific IRQ in
quesiton is active on the distributor instead.

Reported-by: Eric Auger <eric.auger@linaro.org>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
hifive-unleashed-5.1
Christoffer Dall 2015-12-10 22:46:50 +01:00 committed by Marc Zyngier
parent 0de58f8528
commit fdec12c12e
1 changed files with 1 additions and 1 deletions
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2
virt/kvm/arm/vgic.c
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@ -1114,7 +1114,7 @@ bool kvm_vgic_map_is_active(struct kvm_vcpu *vcpu, struct irq_phys_map *map)
return true;
}
return dist_active_irq(vcpu);
return vgic_irq_is_active(vcpu, map->virt_irq);
}
/*