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| author | Yuanhan Liu <yuanhan.liu@linux.intel.com> | 2015-11-11 21:24:41 +0800 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2015-11-12 15:49:33 +0200 |
| commit | 3a12f32229a046f4d4ab0a3a52fb01d2d5a1ab76 (patch) | |
| tree | cd57a81d24fafd2e3dfd6068759fa1068db9152a /hw/virtio | |
| parent | 60915dc4691768c4dc62458bb3e16c843fab091d (diff) | |
| download | qemu-3a12f32229a046f4d4ab0a3a52fb01d2d5a1ab76.tar.gz qemu-3a12f32229a046f4d4ab0a3a52fb01d2d5a1ab76.tar.bz2 qemu-3a12f32229a046f4d4ab0a3a52fb01d2d5a1ab76.zip | |
vhost: send SET_VRING_ENABLE at start/stop
Send SET_VRING_ENABLE at start/stop, to give the backend
an explicit sign of our state.
Signed-off-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'hw/virtio')
| -rw-r--r-- | hw/virtio/vhost.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/hw/virtio/vhost.c b/hw/virtio/vhost.c index de29968a79..1794f0d211 100644 --- a/hw/virtio/vhost.c +++ b/hw/virtio/vhost.c @@ -1226,6 +1226,11 @@ int vhost_dev_start(struct vhost_dev *hdev, VirtIODevice *vdev) } } + if (hdev->vhost_ops->vhost_set_vring_enable) { + /* only enable first vq pair by default */ + hdev->vhost_ops->vhost_set_vring_enable(hdev, hdev->vq_index == 0); + } + return 0; fail_log: vhost_log_put(hdev, false); @@ -1256,6 +1261,10 @@ void vhost_dev_stop(struct vhost_dev *hdev, VirtIODevice *vdev) hdev->vq_index + i); } + if (hdev->vhost_ops->vhost_set_vring_enable) { + hdev->vhost_ops->vhost_set_vring_enable(hdev, 0); + } + vhost_log_put(hdev, true); hdev->started = false; hdev->log = NULL; |