On Tue, May 02, 2023 at 03:04:27PM +0200, Christian Borntraeger wrote: \> > We can reintroduce a flag to permit exceptions if this is really broken, are you > > able to test? I don't have an s390 sat around :) > > Matt (Rosato on cc) probably can. In the end, it would mean having > <memoryBacking> > <source type="file"/> > </memoryBacking> This s390 code is the least of the problems, after this series VFIO won't startup at all with this configuration. Jason