Re: [libvirt] [PATCH] qemu: use "ide" as device name for implicit SATA controller on Q35
On 09/20/2013 08:15 AM, Laine Stump wrote:
This will leave one problem - what to do if someone migrates a guest
with the new non-0 unit# to a host that's still running old libvirt that
ignores unit#. I don't see how to get around this problem without having
knowledge of the source and destination libvirt versions when formatting
the XML to send across, but that is something we've avoided like the
plague. So what do we do for new->old migration?
We use the same hacks we do for other migration issues - if the
_MIGRATABLE flag is on during dumpxml, we output the old style (stick it
in the unit slot, since that's what older libvirt expected).
--
Eric Blake eblake redhat com +1-919-301-3266
Libvirt virtualization library http://libvirt.org
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