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Re: [Xen-devel] Is live migrate a guest from 32bit platform to 64bit pla

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Subject: Re: [Xen-devel] Is live migrate a guest from 32bit platform to 64bit platform a supported feature?
From: Goetz Bock <bock@xxxxxxxxxxx>
Date: Fri, 27 Apr 2007 08:53:24 +0200
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> I tried to live migrate a 32bit guest from 32bit platform to 64bit
> platform, but met failure, so I'd like to consult that is this a
> supported feature?

No, this is not (yet) supported. For the time beeing the kernel must
use the same bitsize as the hypervisor. So you need a 64bit kernel when
using a 64bit hypervisor. The migrated 32bit kernel still is 32bit.

The upcomming 3.0.5 is supposed to support 32bit kernel (pae only) on
64bit. So it might be possible to migrate a 32bit-pae domu to a 64bit
hypervisor.
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