[virt-tools-list] RFC: use virDomainMigrate3 in virt-manager

Cole Robinson crobinso at redhat.com
Fri Sep 2 22:38:11 UTC 2016

On 08/31/2016 02:04 PM, Jim Fehlig wrote:
> Hi All,
> I received a bug report (apologies for no link, but it's not publicly
> accessible) about migration failing with virt-manager between Xen hosts. It's
> rather embarrassing to admit, but I've never tried migration with virt-manager
> and Xen :-/.
> The libvirt libxl driver for Xen only supports the extensible params version of
> the migration V3 API. virt-manager currently uses the virDomainMigrate API,
> which can accommodate migration protocol versions 1, 2 and 3, but doesn't
> support the extensible params variant of the V3 protocol. The virDomainMigrate3
> API does support the extensible params variant. Switching virt-manager to use
> virDomainMigrate3 would allow virt-manager's migrate functionality to work with
> hypervisors only supporting the newer migrate APIs.
> Any opinions on changing virt-manager to use virDomainMigrate3? Attached is an
> initial attempt at doing so.

Sounds good to me... I didn't realize Migrate3 was an actual public entry
point, I thought it was just an internal detail.

Is that patch fine to push or is there more to it? I see the 'Subject' has
'PATCH 1/2' in it.


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