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vhost: implement vhost_dev_start method 

use the vhost_dev_start callback to send the status to backend

Signed-off-by: Cindy Lu <lulu@redhat.com>
Message-Id: <20200701145538.22333-8-lulu@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
This commit is contained in:
Cindy Lu 2020-07-01 22:55:31 +08:00 committed by Michael S. Tsirkin
parent 68513bcd88
commit ca71db438b
1 changed files with 9 additions and 1 deletions
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10
hw/virtio/vhost.c
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@ -1685,7 +1685,12 @@ int vhost_dev_start(struct vhost_dev *hdev, VirtIODevice *vdev)
goto fail_log; goto fail_log;
} }
} }
if (hdev->vhost_ops->vhost_dev_start) {
r = hdev->vhost_ops->vhost_dev_start(hdev, true);
if (r) {
goto fail_log;
}
}
if (vhost_dev_has_iommu(hdev) && if (vhost_dev_has_iommu(hdev) &&
hdev->vhost_ops->vhost_set_iotlb_callback) { hdev->vhost_ops->vhost_set_iotlb_callback) {
hdev->vhost_ops->vhost_set_iotlb_callback(hdev, true); hdev->vhost_ops->vhost_set_iotlb_callback(hdev, true);
@ -1723,6 +1728,9 @@ void vhost_dev_stop(struct vhost_dev *hdev, VirtIODevice *vdev)
/* should only be called after backend is connected */ /* should only be called after backend is connected */
assert(hdev->vhost_ops); assert(hdev->vhost_ops);
if (hdev->vhost_ops->vhost_dev_start) {
hdev->vhost_ops->vhost_dev_start(hdev, false);
}
for (i = 0; i < hdev->nvqs; ++i) { for (i = 0; i < hdev->nvqs; ++i) {
vhost_virtqueue_stop(hdev, vhost_virtqueue_stop(hdev,
vdev, vdev,