acrn-hypervisor/doc/tutorials/images/s5-scenario-2.dot

digraph G {
   node [shape=plaintext fontsize=12];
   rankdir=LR;
   bgcolor="transparent";
   "Service VM:/dev/ttyS8" -> "ACRN hypervisor" -> "User VM:/dev/ttyS1" [arrowsize=.5];
}