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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 12:09:33 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.5.0

On 14/05/2015 12:07, Michael S. Tsirkin wrote:
> > If you really want that, the hook should be in the virtio device class.
> > Keying on the machine type is almost never the answer, at least upstream.
> > Distros can always override it if they know what they're getting into.
> I beg to disagree.  Check out PC_COMPAT_ macros.

I'm talking specifically about migration subsections.  None of them are
keyed on the machine type downstream, as far as I know.

> But if you are saying
> migration with virtio-ccw is just too broken ATM, so we shouldn't care
> about its migration compatibility upstream, then I can buy that.

Yes, I'm also saying that (and Christian must agree or they would not
have posted this patch).


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