Revert "vhost: send SET_VRING_ENABLE at start/stop"

This reverts commit 3a12f32. In case of live migration several queues can be enabled and not only the first one. So informing backend that only the first queue is enabled is wrong. Reported-by: Thibaut Collet <[email protected]> Cc: Yuanhan Liu <[email protected]> Signed-off-by: Michael S. Tsirkin <[email protected]> Reviewed-by: Yuanhan Liu <[email protected]>
xDIMOx · Nov 26, 2015 · 449e357 · 449e357
1 parent 7cf3249
commit 449e357
Showing 1 changed file with 0 additions and 9 deletions.
diff --git a/hw/virtio/vhost.c b/hw/virtio/vhost.c
@@ -1226,11 +1226,6 @@ 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);
@@ -1261,10 +1256,6 @@ 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;