[PATCH v4 13/26] KVM: arm/arm64: GICv4: Handle CLEAR applied to a VLPI

Marc Zyngier
2017-10-06T15:33:48Z

Handling CLEAR is pretty easy. Just ask the ITS driver to clear
the corresponding pending bit (which will turn into a CLEAR
command on the physical side).

Acked-by: Christoffer Dall <cdall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
---
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 42ffb9084bb7..5778b50911e8 100644
--- a/virt/kvm/arm/vgic/vgic-its.c
+++ b/virt/kvm/arm/vgic/vgic-its.c
@@ -1070,6 +1070,10 @@ static int vgic_its_cmd_handle_clear(struct kvm *kvm, struct vgic_its *its,

ite->irq->pending_latch = false;

+ if (ite->irq->hw)
+ return irq_set_irqchip_state(ite->irq->host_irq,
+ IRQCHIP_STATE_PENDING, false);
+
return 0;
}

--
2.14.1