From: Christoffer Dall Date: Thu, 10 Dec 2015 21:46:50 +0000 (+0100) Subject: KVM: arm/arm64: vgic: Fix kvm_vgic_map_is_active's dist check X-Git-Tag: v4.4-rc7~15^2~4^2 X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=fdec12c12ed4333afb49c9948c29fbd5fb52da97;p=linux.git 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 Acked-by: Marc Zyngier Signed-off-by: Christoffer Dall Signed-off-by: Marc Zyngier --- diff --git a/virt/kvm/arm/vgic.c b/virt/kvm/arm/vgic.c index 65461f821a75..7a2f449bd85d 100644 --- a/virt/kvm/arm/vgic.c +++ b/virt/kvm/arm/vgic.c @@ -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); } /*