[RFC PATCH 12/12] vdpa: Delete CVQ migration blocker

[Eugenio Pérez]

We can restore the device state in the destination via CVQ now. Remove
the migration blocker.

Signed-off-by: Eugenio Pérez <epere...@redhat.com>
---
 include/hw/virtio/vhost-vdpa.h |  1 -
 hw/virtio/vhost-vdpa.c         | 11 -----------
 net/vhost-vdpa.c               |  2 --
 3 files changed, 14 deletions(-)

diff --git a/include/hw/virtio/vhost-vdpa.h b/include/hw/virtio/vhost-vdpa.h
index b7d18b4e30..85b8a53052 100644
--- a/include/hw/virtio/vhost-vdpa.h
+++ b/include/hw/virtio/vhost-vdpa.h
@@ -39,7 +39,6 @@ typedef struct vhost_vdpa {
     bool shadow_vqs_enabled;
     /* IOVA mapping used by the Shadow Virtqueue */
     VhostIOVATree *iova_tree;
-    Error *migration_blocker;
     GPtrArray *shadow_vqs;
     const VhostShadowVirtqueueOps *shadow_vq_ops;
     void *shadow_vq_ops_opaque;
diff --git a/hw/virtio/vhost-vdpa.c b/hw/virtio/vhost-vdpa.c
index 48f031b8c0..80bf461cf8 100644
--- a/hw/virtio/vhost-vdpa.c
+++ b/hw/virtio/vhost-vdpa.c
@@ -1028,13 +1028,6 @@ static bool vhost_vdpa_svqs_start(struct vhost_dev *dev)
         return true;
     }
 
-    if (v->migration_blocker) {
-        int r = migrate_add_blocker(v->migration_blocker, &err);
-        if (unlikely(r < 0)) {
-            goto err_migration_blocker;
-        }
-    }
-
     for (i = 0; i < v->shadow_vqs->len; ++i) {
         VirtQueue *vq = virtio_get_queue(dev->vdev, dev->vq_index + i);
         VhostShadowVirtqueue *svq = g_ptr_array_index(v->shadow_vqs, i);
@@ -1076,7 +1069,6 @@ err_svq_setup:
         vhost_svq_stop(svq);
     }
 
-err_migration_blocker:
     error_reportf_err(err, "Cannot setup SVQ %u: ", i);
 
     return false;
@@ -1098,9 +1090,6 @@ static bool vhost_vdpa_svqs_stop(struct vhost_dev *dev)
         }
     }
 
-    if (v->migration_blocker) {
-        migrate_del_blocker(v->migration_blocker);
-    }
     return true;
 }
 
diff --git a/net/vhost-vdpa.c b/net/vhost-vdpa.c
index 2873be2ba4..80ea9a1412 100644
--- a/net/vhost-vdpa.c
+++ b/net/vhost-vdpa.c
@@ -573,8 +573,6 @@ static NetClientState *net_vhost_vdpa_init(NetClientState 
*peer,
         s->vhost_vdpa.start_op = vhost_vdpa_start_control_svq;
         s->vhost_vdpa.shadow_vq_ops = &vhost_vdpa_net_svq_ops;
         s->vhost_vdpa.shadow_vq_ops_opaque = s;
-        error_setg(&s->vhost_vdpa.migration_blocker,
-                   "Migration disabled: vhost-vdpa uses CVQ.");
     }
     ret = vhost_vdpa_add(nc, (void *)&s->vhost_vdpa, queue_pair_index, nvqs);
     if (ret) {
-- 
2.31.1