From: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
To: Peter Maydell <peter.maydell@linaro.org>
Cc: "qemu-devel@nongnu.org" <qemu-devel@nongnu.org>,
Gabriel Southern <gsouther@qti.qualcomm.com>
Subject: Re: Using loadvm with snapshot
Date: Tue, 17 Aug 2021 19:53:23 +0100 [thread overview]
Message-ID: <YRwFo6tuqCxUki8T@work-vm> (raw)
In-Reply-To: <CAFEAcA_h_WWf=0rU1yTqOA4AH5kYfLNqdbqHokdtoBP7bmepUw@mail.gmail.com>
* Peter Maydell (peter.maydell@linaro.org) wrote:
> On Tue, 17 Aug 2021 at 17:27, Dr. David Alan Gilbert
> <dgilbert@redhat.com> wrote:
> >
> > * Gabriel Southern (gsouther@qti.qualcomm.com) wrote:
> > > Hi,
> > >
> > > Are there plans to support using -loadvm with -snapshot?
> > >
> > > I saw some past discussion on mailing list including bug that was closed earlier this year but no recent activity:
> > >
> > > https://lore.kernel.org/qemu-devel/162424905685.11837.7303570061857383641.malone@loganberry.canonical.com/
> > >
> > > Testing with latest qemu it looks like -loadvm still does not work when combined with -snapshot.
> > >
> > > I'm curious how complex it would be to implement this feature and if it may show up on QEMU roadmap in the future. Or if there is alterative command that can be used to save the state of a running VM and then use the same qcow to run multiple QEMU instances loading this VM state running in snapshot mode.
>
> Do you know why -loadvm and -snapshot don't work together?
> It doesn't on the face of it seem like they would be incompatible...
No I don't; I've never actually used -loadvm - given that both the
snapshot mechanism and the load/savevm mechanism are fairly special
qcow2 hacks, it'll be a qcow2 level thing.
Dave
> -- PMM
>
--
Dr. David Alan Gilbert / dgilbert@redhat.com / Manchester, UK
next prev parent reply other threads:[~2021-08-17 18:54 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-12 0:09 Using loadvm with snapshot Gabriel Southern
2021-08-17 16:26 ` Dr. David Alan Gilbert
2021-08-17 18:48 ` Peter Maydell
2021-08-17 18:53 ` Dr. David Alan Gilbert [this message]
2021-08-24 15:20 ` Kevin Wolf
2021-08-24 15:25 ` Peter Maydell
2021-08-24 16:20 ` Kevin Wolf
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