I'm trying to hide my PRV-350 PCI card from Dom0 so that a DomU can see it. >From Dom0, the card reports as: [root at willamette ~]# lspci |grep 06:02 06:02.0 Multimedia video controller: Internext Compression Inc iTVC15 MPEG-2 Encoder (rev 01) The ivtv driver isn't installed on Dom0. I have added the following to /etc/modprobe.conf on Dom0: options pciback hide=(0000:06:02.0) but the card still shows up. Is PCI backend/frontend support compiled in the Centos5 xen kernels? If so, am I configuring it correctly? Should I be asking this on a xen list? TIA, mjc -- Michael J. Carter mcarter at pobox.com