Re: [Xen-devel] Xen 3.1 - migration fail / save/restore of PV guests too

[Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>]

On 26/5/07 16:57, "Sébastien Riccio" <sr@xxxxxxxxxxxxxxx> wrote:

> I'm currently playing with Xen 3.1 live migration and save/restore features.
> I tried to migrate and save/restore a 32p domain on a 64 host and both
> fails.

Because of different layouts and sizes of certain structures for 32-bit
versus 64-bit guests, save/restore/migrate currently only works where the
domU is the same 'bitness' as your dom0. This restriction does not apply to
HVM domUs, only PV domUs. We hope to lift the restriction for Xen 3.1.1.

32-on-64 is one of the 'harder' new features in 3.1.0, so it will take a
little while to beat out the last few bugs and feature regressions!

 -- Keir



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