KVM PCI pass through with CX23880 based DVB-T card

The past few weeks I've been experimenting a bit with mapping PCI and USB devices to KVM guests, with mixed luck.

With qemu-kvm-0.12.1.2 USB 1.1 works alright, but my DVB-T stick doesn't work with USB 1.1 as it needs USB 2.0.

I had a bit more luck my DVB-t PCI card using the instructions here (note it's a multi-function card):

lspci
00:05.0 Multimedia video controller: Conexant CX23880/1/2/3 PCI Video and Audio Decoder (rev 05)
00:06.0 Multimedia controller: Conexant CX23880/1/2/3 PCI Video and Audio Decoder [MPEG Port] (rev 05)
00:07.0 Multimedia controller: Conexant CX23880/1/2/3 PCI Video and Audio Decoder [IR Port] (rev 05)
modprobe cx88-dvb
Timeout, server not responding.


However after loading the module KVM dies without any output on the server. TThe above output is from a SSH session, but there is no more output on the command line or VNC.

I guess for now I'll just put my plans for building a mythtv backend guest on hold.... and see wether future KVM versions will be any more successful.