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Re: [Qemu-devel] [PATCH RFC 1/1] virtio: migrate config_vector

From: Paolo Bonzini
Subject: Re: [Qemu-devel] [PATCH RFC 1/1] virtio: migrate config_vector
Date: Thu, 14 May 2015 10:24:15 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.5.0

On 13/05/2015 18:14, Michael S. Tsirkin wrote:
> > - AFAICS, there's no easy way to add transport-specific subsections -
> >   and simply adding config_vector in ccw would break compatibility
> subsections break compatibility too.  The only way around that is to set
> a flag to skip migrating config_vector for old machine types.

That's expected.  Subsections break compatibility because sometimes
breaking migration is better than leaving a broken guest after migration.


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