On Fri, Jan 20, 2017 at 10:50:49AM +0800, Shannon Zhao wrote:
> From: Shannon Zhao <shannon.z...@linaro.org>
>
> For ARM virt machine, if we use virt-2.7 which will not create ITS node,
> the virtio-net can not recieve interrupts so it can't get ip address
> through dhcp.
> This fixes commit 83d768b(virtio: set ISR on dataplane notifications).
>
> Signed-off-by: Shannon Zhao <shannon.z...@linaro.org>
> ---
> hw/virtio/virtio.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/hw/virtio/virtio.c b/hw/virtio/virtio.c
> index aa4f38f..709b718 100644
> --- a/hw/virtio/virtio.c
> +++ b/hw/virtio/virtio.c
> @@ -2082,6 +2082,7 @@ static void
> virtio_queue_guest_notifier_read(EventNotifier *n)
> {
> VirtQueue *vq = container_of(n, VirtQueue, guest_notifier);
> if (event_notifier_test_and_clear(n)) {
> + virtio_set_isr(vq->vdev, 0x1);
> virtio_notify_vector(vq->vdev, vq->vector);
> }
> }
Then you should bring back virtio_irq, to avoid duplicating
code from virtio_notify.
> --
> 2.0.4
>
