search for: how_to_debug_virtualization_problem

I'm running a RHEL6 as a development desktop with Fedora 14 (multimedia stuff) and Win XP (corporate email and calendars) running on it as KVM VMs. Everything runs great except for audio pass through. Audio works on the RHEL host. Both VMs see sound cards provided by the VM, but no sound is forthcoming. I have tried adding a PCI audio device from the physical host to the Fedora VM, but then