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virtio-pci: support queue enable
PCI devices support device specific vq enable. Based on this function, the driver can re-enable the virtqueue after the virtqueue is reset. Signed-off-by: Kangjie Xu <kangjie.xu@linux.alibaba.com> Signed-off-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com> Acked-by: Jason Wang <jasowang@redhat.com> Message-Id: <20221017092558.111082-7-xuanzhuo@linux.alibaba.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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@ -1342,6 +1342,7 @@ static void virtio_pci_common_write(void *opaque, hwaddr addr,
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proxy->vqs[vdev->queue_sel].used[0]);
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proxy->vqs[vdev->queue_sel].enabled = 1;
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proxy->vqs[vdev->queue_sel].reset = 0;
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virtio_queue_enable(vdev, vdev->queue_sel);
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} else {
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virtio_error(vdev, "wrong value for queue_enable %"PRIx64, val);
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}
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