> > How, since there is no synchronization point between the vhost-user > > server on the source and the destination? > > The idea is that the backend should both stop picking up new requests and > also quiesce outstanding requests upon a GET_VRING_BASE vhost message.
This could be documented, but perhaps it's best to add a START_STOP feature and message to the vhost-user protocol? The feature then can be optional for vhost-user-net and mandatory for vhost-user-scsi. When this is done we can remove .unmigratable. Thanks, Paolo > > > > Can you please send a version of your patch that uses .unmigratable? > > Sure I can do that. We can work on the migration later on. > > > > > I'll send a v6 that momentarily drops vhost-scsi, but I intend to > > include it again in the next pull request. > > Sounds good to me. > > Felipe > > > > > Thanks, > > > > Paolo > >
