Could you please add some more information: 1. What PCI device would you expect? 2. Is this on LPAR, KVM, or z/VM? 3. Could you please provide the IO Configuration of the CEC with regards to the PCI devices? 4. (if used) what z/VM or KVM version, and the directory entries or KVM vm configuration. Note, that back when I tried last (which is some years ago), you had to enable pci support from kernel command line with the pci=1 parameter. This might have changed since.