[PATCH v3 42/59] KVM: arm/arm64: GICv4: Handle INT command applied to a VLPI
From: Christoffer Dall <hidden>
Date: 2017-08-28 18:18:11
Also in:
kvm, kvmarm, lkml
On Mon, Jul 31, 2017 at 06:26:20PM +0100, Marc Zyngier wrote:
If the guest issues an INT command targetting a VLPI, let's call into the irq_set_irqchip_state() helper to make it pending on the physical side. This works just as well if userspace decides to inject an interrupt using the normal userspace API... Signed-off-by: Marc Zyngier <redacted>
Acked-by: Christoffer Dall <redacted>
quoted hunk ↗ jump to hunk
--- virt/kvm/arm/vgic/vgic-its.c | 4 ++++ 1 file changed, 4 insertions(+)diff --git a/virt/kvm/arm/vgic/vgic-its.c b/virt/kvm/arm/vgic/vgic-its.c index a2217f53bbe5..40aeadef33fe 100644 --- a/virt/kvm/arm/vgic/vgic-its.c +++ b/virt/kvm/arm/vgic/vgic-its.c@@ -573,6 +573,10 @@ static int vgic_its_trigger_msi(struct kvm *kvm, struct vgic_its *its, if (err) return err; + if (irq->hw) + return irq_set_irqchip_state(irq->host_irq, + IRQCHIP_STATE_PENDING, true); + spin_lock(&irq->irq_lock); irq->pending_latch = true; vgic_queue_irq_unlock(kvm, irq);-- 2.11.0