On Thu, Jun 01, 2017 at 01:27:28PM +0200, David Hildenbrand wrote: > An alternative: Have some process that enables PGSTE for all of its > future children. Fork+execv qemu. However, such a process in between > will most likely confuse tooling like libvirt when it comes to process ids. That would be something like sys_personality() vs setarch, e.g. adding a new s390 specific personality flag and then do something like setarch s390x --kvm qemu... However I'm afraid that this is also not acceptable from a usability point of view.