Demi Marie Obenour <demiobenour@gmail.com> writes:

> A lot of modern laptops don't have RJ45 jacks.  Ethernet is only
> supported via USB Ethernet adapters.
>
> Is this just a special case of broader USB support, or is it worth
> handling separately?  If the Linux USB core and the xHCI driver were
> secure against malicious input, it might make sense to implement
> the drivers in userspace on the router.  Sadly, that isn't the case
> right now.

I don't immediately see a reason it would need to be handled separately.
The router VM shouldn't care whether a network device is USB or not.
What special handling do you imagine?