physical network, or be consumed by a normal userspace application on the host. Just as if this were any other network interface. In my patch, [1] was the virtio-net driver, completely unmodified. So, does this patch accomplish the above diagram? If so, why the copy_to_user(), etc? Maybe I'm confusing this with my system, where the "guest" is another physical system, separated by the PCI bus. Ira