On 03/26/2013 05:22 PM, H. Peter Anvin wrote: > I would say let it be undefined... in most cases the host will know what device(s) will matter; e.g. if the guest is ppc no point in providing an I/O BAR. For pluggable physical devices, though, both should be provided. -hpa -- H. Peter Anvin, Intel Open Source Technology Center I work for Intel. I don't speak on their behalf. _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linuxfoundation.org/mailman/listinfo/virtualization