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Re: [Qemu-devel] [PATCH 00/13] virtio migration: Flip outer layer to vms

From: Gerd Hoffmann
Subject: Re: [Qemu-devel] [PATCH 00/13] virtio migration: Flip outer layer to vmstate
Date: Wed, 22 Jun 2016 08:53:19 +0200


> I think the first two patches are the most controversial;
> they remove migration support for old version of virtio-net and virtio-serial;
> (for virtio-net versions prior to 0.11 and for virtio-serial prior to 0.13).
> I'm working on the basis that migration has bit rotted enough so
> that the streams aren't migration compatible for that long back
> on upstream - but if anyone knows otherwise please shout.

We've gone great lengths to avoid new versions by using subsections
instead for *years*.  So if we are going to cut live migration support
from ancient versions now:  Can we possibly remove the versioning


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