[libvirt] [PATCH v2] snapshot: Store both config and live XML in the snapshot domain

[Maxiwell S. Garcia]

On Wed, Jul 31, 2019 at 02:52:17PM -0500, Eric Blake wrote:
> On 7/31/19 2:45 PM, Daniel Henrique Barboza wrote:
> > Max,
> > 
> > Code looks ok. Two tests (virsh-checkpoint and virsh-snapshot) are
> > failing, but they are also failing on master, thus I say this patch get a
> > pass because it didn't break anything else.
> 
> What failures are you seeing? Those were just recently added, and if
> they are failing for you, it's worth getting them fixed. But I'm not
> seeing them fail on my end.
> 
> > On 7/23/19 4:47 PM, Maxiwell S. Garcia wrote:
> >> The snapshot-create operation of running guests saves the live
> >> XML and uses it to replace the active and inactive domain in
> >> case of revert. So, the config XML is ignored by the snapshot
> >> process. This commit changes it and adds the config XML in the
> >> snapshot XML as the <inactiveDomain> entry.
> 
> Since checkpoints are brand new, and also created always on a running
> image, should they also gain an <inactiveDomain> entry?  And if we are
> fast enough, would it be worth mandating that entry on a checkpoint
> REDEFINE (even though we can't do it for a snapshot REDEFINE)?
> 

Hi Eric,

IIUC, checkpoints do not have commands that override the config XML.
So, I think that <inactiveDomain>, in this case, is not necessary.
What do you think?

> -- 
> Eric Blake, Principal Software Engineer
> Red Hat, Inc.           +1-919-301-3226
> Virtualization:  qemu.org | libvirt.org
> 




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