+static int
+vhost_user_iotlb_msg(struct virtio_net *dev, struct VhostUserMsg *msg)
+{
+ struct vhost_iotlb_msg *imsg = &msg->payload.iotlb;
+ uint16_t i;
+ uint64_t vva;
+
+ switch (imsg->type) {
+ case VHOST_IOTLB_UPDATE:
+ vva = qva_to_vva(dev, imsg->uaddr);
+ if (!vva)
+ return -1;
+
+ for (i = 0; i < dev->nr_vring; i++) {
+ struct vhost_virtqueue *vq = dev->virtqueue[i];
+
+ vhost_user_iotlb_cache_insert(vq, imsg->iova, vva,
+ imsg->size, imsg->perm);
+ }
+ break;
+ case VHOST_IOTLB_INVALIDATE:
+ for (i = 0; i < dev->nr_vring; i++) {
+ struct vhost_virtqueue *vq = dev->virtqueue[i];
+
+ vhost_user_iotlb_cache_remove(vq, imsg->iova,
+ imsg->size);
+ }
+ break;
+ default:
+ RTE_LOG(ERR, VHOST_CONFIG, "Invalid IOTLB message type (%d)\n",
+ imsg->type);
+ return -1;
+ }
+
+ return 0;
+}
+