redonkable
/
alistair23-linux
1
0
Fork 0
Code Releases Activity

KVM: arm/arm64: GICv4: Handle INT command applied to a VLPI 

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...

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>
hifive-unleashed-5.1
Marc Zyngier 2017-10-27 15:28:40 +01:00 committed by Christoffer Dall
parent 196b136498
commit 1b7fe468b0
1 changed files with 4 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
virt/kvm/arm/vgic/vgic-its.c
View File

@ -581,6 +581,10 @@ 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_irqsave(&irq->irq_lock, flags);
irq->pending_latch = true;
vgic_queue_irq_unlock(kvm, irq, flags);