+ * vDPA device pointer on success, NULL on failure
+ */
+__rte_experimental
+struct rte_vdpa_device *
+rte_vhost_get_vdpa_device(int vid);
+
+/**
+ * Notify the guest that should get virtio configuration space from backend.
+ *
+ * @param vid
+ * vhost device ID
+ * @param need_reply
+ * wait for the master response the status of this operation
+ * @return
+ * 0 on success, < 0 on failure