I think this one could be closed, or changed because the problem is not connected with the particular version of libvirt and affects only restore feature of the library. Here's bug report to upstream https://bugzilla.redhat.com/show_bug.cgi?id=1142288
- Bug#761807: libvirt-bin: No PCI buses available ... Ilya Rusyanov
- Bug#761807: libvirt-bin: No PCI buses avail... Илья Русьянов