Hi, Thanks for infos. My concern is the following : In order to establish datas exchanges between hosts and guest , I'll add a channel device to a running Guest ( as I learned from you that it's possible to do that without stopping the Guest). When the guest migrates to another host , this one must be able to retrieve the channel device parameters to be able to dialog with the migrated guest. I plan to use dumpxml to retrieve these infos. Will these infos be updated on the second host where the guest has migrated ? Thx. J.P. -----Message d'origine----- De : Michal Privoznik [mailto:mprivozn@xxxxxxxxxx] Envoyé : mercredi 2 septembre 2015 14:12 À : Jean-Pierre Ribeauville; libvirt-users@xxxxxxxxxx Objet : Re: about guest live migration configuration changes persistence .. On 31.08.2015 09:27, Jean-Pierre Ribeauville wrote: > Hi, > > > Is a change , by edit it via virsh edit , in the "local" .xml > configuration file (i.e. adding a channel device) persistent when live migrating the guest on another host ? Yes. Since the 0.9.7 release, the configuration XML is transferred to the other side too. However, by default, migrated domains are just transient (unless you pass VIR_MIGRATE_PERSIST_DEST flag, or virsh migrate --persistent ..) so the configuration XML doesn't have much effect in that case. Michal _______________________________________________ libvirt-users mailing list libvirt-users@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/libvirt-users