KVM: arm/arm64: GICv4: Propagate property updates to VLPIs

Upon updating a property, we propagate it all the way to the physical
ITS, and ask for an INV command to be executed there.

Acked-by: Christoffer Dall <cdall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>

1 files changed, 3 insertions, 0 deletions

diff --git a/virt/kvm/arm/vgic/vgic-its.c b/virt/kvm/arm/vgic/vgic-its.c
index 78d11aed1e17..4768a0e21cc5 100644
--- a/virt/kvm/arm/vgic/vgic-its.c
+++ b/virt/kvm/arm/vgic/vgic-its.c
@@ -297,6 +297,9 @@ static int update_lpi_config(struct kvm *kvm, struct vgic_irq *irq,
                 spin_unlock_irqrestore(&irq->irq_lock, flags);
         }
 
+        if (irq->hw)
+                return its_prop_update_vlpi(irq->host_irq, prop, true);
+
         return 0;
 }