I have a virtual guest of Ubuntu on a KVM Machine, I've setup the machine so I can type virsh console
and be dropped into a console.
I realise the security considerations here, but is it possible to set the guest up so that if a user connects via console they are automatically root without having to type in any password. However this is only for serial console and not for SSH or remote access.
This isn't really a KVM question but just a system setup, the console has been setup as a device on /dev/ttyS0
.