Re: [PATCH v3 45/59] KVM: arm/arm64: GICv4: Handle CLEAR applied to a VLPI

Christoffer Dall
2017-08-28T18:16:17Z

On Mon, Jul 31, 2017 at 06:26:23PM +0100, Marc Zyngier wrote:
> 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).
>
> 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 aaad577ce328..2c065c970ba0 100644
> --- a/virt/kvm/arm/vgic/vgic-its.c
> +++ b/virt/kvm/arm/vgic/vgic-its.c
> @@ -1069,6 +1069,10 @@ 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;
> }
>
> --
> 2.11.0
>