On 01.02.19 11:08, Cornelia Huck wrote: > On Thu, 31 Jan 2019 22:21:01 +0100 > David Hildenbrand <da...@redhat.com> wrote: > >> Thinking out loud: >> >> We should migrate the flag in the future. This is already a problem >> right now, as the timer is also not migrated. >> >> If the unplug request is sent and we migrate before the guest can react, >> the unplug would not happen. >> >> However, looks like migration of zpci devices is not implemented _at all_. > > Oh, joy. > >> >> This does not matter for pci passthrough (main use case). But when >> wanting to use e.g. virtio-pci-net, things are shaky after migration. >> >> So this is future work. >> > > Hopefully folks running s390x guests are rather using virtio-ccw > devices anyway... > > I agree that this needs to be taken care of on top of these changes. > Should we mark zpci devices unmigratable, or does it work for some > values of "work"? >
It works if the guest never configures a zpci device I guess ... so I think this is pretty much broken. E.g. the state of the zpci device is not even migrated unless I am missing something. -- Thanks, David / dhildenb
