My first KVM: console invisible and can't grab PCI device

Hi,

I successfully moved my perimeter firewall from Virtualbox to KVM (converted the VDI via RAW to QCOW2). All works fine - which leaves me a bit relieved as it's my first steps with KVM and some of the philosophies are a bit different. Now I have 2 remaining issues:
1.) After the booting is through, I have no display on the virtual console. I see GRUB and a ton of messages during boot but at some point, the console clears and that's it. No more display. SSH to the KVM works fine, so I'm wondering what might be wrong here.
2.) I was trying to grab the second NIC of the physical machine as PCI device, because after all, it's a perimeter firewall. I don't trust just mactapping the NIC while it's set to some RFC1918-IP on the host... But no matter what, I always get

internal error Unable to reset PCI device 0000:01:08.0: internal error Active 0000:01:0a.0 devices on bus with 0000:01:08.0, not doing bus reset

I tried pretty much everything. ifdown'ing it (of course), even rmmod'ing the module. Still can't grab it.

-S