| Message ID | 20170731172637.29355-43-marc.zyngier@arm.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
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 <marc.zyngier@arm.com> Acked-by: Christoffer Dall <cdall@linaro.org> > --- > 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 >
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);
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 <marc.zyngier@arm.com> --- virt/kvm/arm/vgic/vgic-its.c | 4 ++++ 1 file changed, 4 insertions(+)