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Re: [Qemu-devel] [PATCH 7/7] RTC: Allow to migrate from old QEMU

From: Paolo Bonzini
Subject: Re: [Qemu-devel] [PATCH 7/7] RTC: Allow to migrate from old QEMU
Date: Fri, 20 Jul 2012 21:02:51 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:13.0) Gecko/20120615 Thunderbird/13.0.1

Il 20/07/2012 19:38, Michael Roth ha scritto:
>> > The new logic is compatible with old, and it should not block migration
>> > from old QEMU.  However, the new version cannot migrate to the old one.
> Do we not plan to support 1.2 -> 1.1 with -M pc-1.1?

No, we don't.  That's why in general subsections are preferred to
version bumps, as long as the subsection is sent rarely (to fix bugs) or
only for features that are never enabled in the old version.  Actually I
think all of our subsections are of the former kind.


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