Michal Privoznik <mprivozn@xxxxxxxxxx> writes: > On 1/21/20 3:28 PM, Milan Zamazal wrote: >> Hi, >> > >> when a normally running VM is migrated, libvirt sends >> VIR_DOMAIN_EVENT_RESUMED_MIGRATED event on the destination once the >> migration completes. I can see that when a paused VM is migrated, >> libvirt sends VIR_DOMAIN_EVENT_SUSPENDED_PAUSED instead. >> >> Since there seems to be nothing migration specific about >> VIR_DOMAIN_EVENT_SUSPENDED_PAUSED event, my question is: Is it safe to >> assume on the destination that this event signals completion of the >> incoming migration (unless VIR_DOMAIN_EVENT_RESUMED_MIGRATED is received >> before)? > > Yes. This is the code that handles the finish phase of migration: > > https://libvirt.org/git/?p=libvirt.git;a=blob;f=src/qemu/qemu_migration.c;h=29d228a8d9345ec8e2853571444614008a95e914;hb=HEAD#l5105 > > which can be read as the following pseudo code: > > if (postCopy) > sendEvent(VIR_DOMAIN_EVENT_RESUMED_MIGRATED); > > if (domain.paused) > sendEvent(VIR_DOMAIN_EVENT_SUSPENDED_PAUSED); OK, thank you for clarification. Regards, Milan
