> Since this is not well specified, add a common blocker for the > VhostUserBackend users (vhost-user-input and upcoming gpu will use > it). > > RFC since I am not sure that's what Michael had in mind when > requesting such blocker.
vmstate_vhost_input blocks migration too (via .unmigratable = 1). One way to block live migration is enough. I think it makes sense to do it per device. virtio-input doesn't carry much state, so live-migrating it shouldn't be that difficuilt. virtio-gpu will be harder ... cheers, Gerd
