int (*get_vring_base)(struct virtio_user_dev *dev, struct vhost_vring_state *state);
int (*set_vring_call)(struct virtio_user_dev *dev, struct vhost_vring_file *file);
int (*set_vring_kick)(struct virtio_user_dev *dev, struct vhost_vring_file *file);
+ int (*set_vring_addr)(struct virtio_user_dev *dev, struct vhost_vring_addr *addr);
+ int (*get_status)(struct virtio_user_dev *dev, uint8_t *status);
+ int (*set_status)(struct virtio_user_dev *dev, uint8_t status);
int (*send_request)(struct virtio_user_dev *dev,
enum vhost_user_request req,
void *arg);