Since I'm having problems getting sound from my guest VM (apparently virt-viewer doesn't support sound), I decided to try and passthrough my onboard sound card directly to the guest. Only I'm not sure if I'm doing it right. I've read the instructions here: redhat.com/docs/en-US/Red_Ha ... rough.html
All of the commands and features listed in the RHEL 6 docs exist in CentOS 5.5, at least they show up, so that's what I decided to try. Only I bogged down on the very first step - removing the device drivers from CentOS to allow it to be assigned to the guest. When at a virsh prompt I type nodedev-dettach and the command simply hangs. No output, no errors onscreen or in any of the logs under System Log Viewer. And this is the case for any pci device I try to detach. So that leaves me wondering if virsh under CentOS actually supports this command or if it is a "ghost" command.
Has anyone actually passed through a PCI device on CentOS? How is it done? Should I be following the first instructions and just try to modify them to apply to CentOS? Is there another way to do this without using virsh?