diff options
| -rw-r--r-- | hw/virtio/vhost-vdpa.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/hw/virtio/vhost-vdpa.c b/hw/virtio/vhost-vdpa.c index fc84cf6ec6..c968278e70 100644 --- a/hw/virtio/vhost-vdpa.c +++ b/hw/virtio/vhost-vdpa.c @@ -1456,7 +1456,15 @@ static int vhost_vdpa_set_vring_call(struct vhost_dev *dev, /* Remember last call fd because we can switch to SVQ anytime. */ vhost_svq_set_svq_call_fd(svq, file->fd); - if (v->shadow_vqs_enabled) { + /* + * When SVQ is transitioning to off, shadow_vqs_enabled has + * not been set back to false yet, but the underlying call fd + * will have to switch back to the guest notifier to signal the + * passthrough virtqueues. In other situations, SVQ's own call + * fd shall be used to signal the device model. + */ + if (v->shadow_vqs_enabled && + v->shared->svq_switching != SVQ_TSTATE_DISABLING) { return 0; } |