249         struct vhost_msg_v2 msg;  in vhost_kernel_iotlb_read()  local
251         while ((len = read((uintptr_t)dev->opaque, &msg, sizeof msg)) > 0) {  in vhost_kernel_iotlb_read()
252             if (len < sizeof msg) {  in vhost_kernel_iotlb_read()
256             if (msg.type != VHOST_IOTLB_MSG_V2) {  in vhost_kernel_iotlb_read()
261             vhost_backend_handle_iotlb_msg(dev, &msg.iotlb);  in vhost_kernel_iotlb_read()
264         struct vhost_msg msg;  in vhost_kernel_iotlb_read()  local
266         while ((len = read((uintptr_t)dev->opaque, &msg, sizeof msg)) > 0) {  in vhost_kernel_iotlb_read()
267             if (len < sizeof msg) {  in vhost_kernel_iotlb_read()
271             if (msg.type != VHOST_IOTLB_MSG) {  in vhost_kernel_iotlb_read()
276             vhost_backend_handle_iotlb_msg(dev, &msg.iotlb);  in vhost_kernel_iotlb_read()
285         struct vhost_msg_v2 msg = {};  in vhost_kernel_send_device_iotlb_msg()  local
287         msg.type = VHOST_IOTLB_MSG_V2;  in vhost_kernel_send_device_iotlb_msg()
288         msg.iotlb = *imsg;  in vhost_kernel_send_device_iotlb_msg()
290         if (write((uintptr_t)dev->opaque, &msg, sizeof msg) != sizeof msg) {  in vhost_kernel_send_device_iotlb_msg()
295         struct vhost_msg msg = {};  in vhost_kernel_send_device_iotlb_msg()  local
297         msg.type = VHOST_IOTLB_MSG;  in vhost_kernel_send_device_iotlb_msg()
298         msg.iotlb = *imsg;  in vhost_kernel_send_device_iotlb_msg()
300         if (write((uintptr_t)dev->opaque, &msg, sizeof msg) != sizeof msg) {  in vhost_kernel_send_device_iotlb_msg()