From: Paolo Bonzini <pbonzini@redhat.com>
To: Kevin Wolf <kwolf@redhat.com>
Cc: Juan Quintela <quintela@redhat.com>,
"qemu-devel@nongnu.org" <qemu-devel@nongnu.org>,
jes sorensen <jes.sorensen@redhat.com>,
Alexander Graf <agraf@suse.de>,
Markus Armbruster <armbru@redhat.com>,
Gerd Hoffmann <kraxel@redhat.com>
Subject: Re: [Qemu-devel] migration: new sections and backward compatibility.
Date: Mon, 11 Jul 2011 17:31:27 +0200 [thread overview]
Message-ID: <4E1B174F.3010406@redhat.com> (raw)
In-Reply-To: <4E1B1779.6080505@redhat.com>
On 07/11/2011 05:32 PM, Kevin Wolf wrote:
>>> I'd guess the best would be to have a special VMSTATE that means
>>> "broken old version doesn't send a section" which we can set for
>>> special -M?
>>
>> No, the best would be to have a serious migration format, based for
>> example on ASN.1 which Michael Tsirkin was playing with. We cannot keep
>> bolting more and more stuff on top of the current protocol, especially
>> since adding a new protocol is not that hard (old machine types can keep
>> the old protocol).
>
> And even more so with the old format being ambiguous. We haven't decided
> yet what to do with subsections of structs, have we?
I hope to test this week the prototype I sent.
Paolo
next prev parent reply other threads:[~2011-07-11 15:31 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-07-06 16:04 [Qemu-devel] migration: new sections and backward compatibility Gerd Hoffmann
2011-07-06 17:13 ` Anthony Liguori
2011-07-07 7:19 ` Gerd Hoffmann
2011-07-07 15:36 ` Anthony Liguori
2011-07-12 14:50 ` Gerd Hoffmann
2011-07-07 9:23 ` Markus Armbruster
2011-07-07 11:02 ` Alexander Graf
2011-07-07 15:23 ` Paolo Bonzini
2011-07-11 15:32 ` Kevin Wolf
2011-07-11 15:31 ` Paolo Bonzini [this message]
2011-07-07 14:40 ` Gerd Hoffmann
2011-07-07 15:37 ` Anthony Liguori
2011-07-07 16:44 ` Markus Armbruster
2011-07-06 17:28 ` Avi Kivity
2011-07-06 20:01 ` Anthony Liguori
2011-07-06 23:32 ` Alexander Graf
2011-07-07 7:14 ` Gerd Hoffmann
2011-07-07 7:30 ` Avi Kivity
2011-07-08 13:02 ` Jes Sorensen
2011-07-08 14:43 ` Peter Maydell
2011-07-08 15:12 ` Gerd Hoffmann
2011-07-07 15:33 ` Anthony Liguori
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