88 vhost_user_read(int fd, struct vhost_user_msg *msg)  in vhost_user_read()  argument
93 	ret = recv(fd, (void *)msg, sz_hdr, 0);  in vhost_user_read()
101 	if (msg->flags != (valid_flags)) {  in vhost_user_read()
103 			    msg->flags, valid_flags);  in vhost_user_read()
107 	sz_payload = msg->size;  in vhost_user_read()
109 	if ((size_t)sz_payload > sizeof(msg->payload))  in vhost_user_read()
113 		ret = recv(fd, (void *)((char *)msg + sz_hdr), sz_payload, 0);  in vhost_user_read()
117 				ret, msg->size);  in vhost_user_read()
209 prepare_vhost_memory_user(struct vhost_user_msg *msg, int fds[])  in prepare_vhost_memory_user()  argument
214 	wa.vm = &msg->payload.memory;  in prepare_vhost_memory_user()
224 	msg->payload.memory.nregions = wa.region_nr;  in prepare_vhost_memory_user()
225 	msg->payload.memory.padding = 0;  in prepare_vhost_memory_user()
256 	struct vhost_user_msg msg;  in vhost_user_sock()  local
275 	msg.request = req;  in vhost_user_sock()
276 	msg.flags = VHOST_USER_VERSION;  in vhost_user_sock()
277 	msg.size = 0;  in vhost_user_sock()
298 			msg.flags |= VHOST_USER_NEED_REPLY_MASK;  in vhost_user_sock()
303 		msg.payload.u64 = *((__u64 *)arg);  in vhost_user_sock()
304 		msg.size = sizeof(m.payload.u64);  in vhost_user_sock()
312 		if (prepare_vhost_memory_user(&msg, fds) < 0)  in vhost_user_sock()
314 		fd_num = msg.payload.memory.nregions;  in vhost_user_sock()
315 		msg.size = sizeof(m.payload.memory.nregions);  in vhost_user_sock()
316 		msg.size += sizeof(m.payload.memory.padding);  in vhost_user_sock()
317 		msg.size += fd_num * sizeof(struct vhost_memory_region);  in vhost_user_sock()
320 			msg.flags |= VHOST_USER_NEED_REPLY_MASK;  in vhost_user_sock()
330 		memcpy(&msg.payload.state, arg, sizeof(msg.payload.state));  in vhost_user_sock()
331 		msg.size = sizeof(m.payload.state);  in vhost_user_sock()
335 		memcpy(&msg.payload.state, arg, sizeof(msg.payload.state));  in vhost_user_sock()
336 		msg.size = sizeof(m.payload.state);  in vhost_user_sock()
341 		memcpy(&msg.payload.addr, arg, sizeof(msg.payload.addr));  in vhost_user_sock()
342 		msg.size = sizeof(m.payload.addr);  in vhost_user_sock()
349 		msg.payload.u64 = file->index & VHOST_USER_VRING_IDX_MASK;  in vhost_user_sock()
350 		msg.size = sizeof(m.payload.u64);  in vhost_user_sock()
354 			msg.payload.u64 |= VHOST_USER_VRING_NOFD_MASK;  in vhost_user_sock()
362 	len = VHOST_USER_HDR_SIZE + msg.size;  in vhost_user_sock()
363 	if (vhost_user_write(vhostfd, &msg, len, fds, fd_num) < 0) {  in vhost_user_sock()
369 	if (need_reply || msg.flags & VHOST_USER_NEED_REPLY_MASK) {  in vhost_user_sock()
370 		if (vhost_user_read(vhostfd, &msg) < 0) {  in vhost_user_sock()
376 		if (req != msg.request) {  in vhost_user_sock()
385 			if (msg.size != sizeof(m.payload.u64)) {  in vhost_user_sock()
389 			*((__u64 *)arg) = msg.payload.u64;  in vhost_user_sock()
392 			if (msg.size != sizeof(m.payload.state)) {  in vhost_user_sock()
396 			memcpy(arg, &msg.payload.state,  in vhost_user_sock()
401 			if (msg.size != sizeof(m.payload.u64)) {  in vhost_user_sock()
406 			if (msg.payload.u64 != 0) {  in vhost_user_sock()