VHOST_GET_VRING_BASE   56 include/uapi/linux/vhost.h #define VHOST_GET_VRING_BASE _IOWR(VHOST_VIRTIO, 0x12, struct vhost_vring_state)
VHOST_GET_VRING_BASE   56 tools/include/uapi/linux/vhost.h #define VHOST_GET_VRING_BASE _IOWR(VHOST_VIRTIO, 0x12, struct vhost_vring_state)