[Ovirt-devel] Question about ovirt migration

Atsushi SAKAI sakaia at jp.fujitsu.com
Mon Sep 8 08:07:12 UTC 2008

Hi, Chris

Thank you for your description.

Then I want to understand the software layer for *fake* managed node.
But, Nested KVM does not support at this moment.(Ref)
Would you point the code of guest boot on fake managed node?

[PATCH 0/9] [RFC] Add support for nested SVM (kernel)

Atsushi SAKAI

Chris Lalancette <clalance at redhat.com> wrote:

> Atsushi SAKAI wrote:
> > Hi,
> > 
> > I want to confirm the ovirt migration status.
> > (This is available only usual version not developer version.)
> > 
> > In my understanding,
> > KVM supports migration, Qemu does not support migration at this moment.
> > For this situation, ovirt for developer does not support migration.
> > So we test migration. We need to use usual ovirt?
> > Is this my understanding correct?
> Well, no.  Here's the deal: there is live migration code in upstream kvm
> userspace, but not in upstream qemu.  What that means is that you can live
> migrate KVM guests, but you can *also* live migrate fully emulated guests, as
> long as you use the KVM binary to do it (which ovirt does).  So you should be
> able to live migrate even when you are using the "fake" managed nodes.
> Chris Lalancette

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