Re: [virtio-dev] Re: [Qemu-devel] [PATCH v3 0/3] Use of unique identifier for pairing virtio and passthrough devices...

[Cornelia Huck <cohuck@redhat.com>]

On Mon, 9 Jul 2018 16:14:19 +0300
Roman Kagan <rkagan@virtuozzo.com> wrote:

> On Fri, Jul 06, 2018 at 03:54:06PM +0200, Cornelia Huck wrote:
> > If we want to extend that to other device types, we can add the field
> > in their config space; but I'd rather prefer a more generic "host
> > relays config metainformation" approach.  
> 
> The problem with this approach is that it's too generic and poorly
> scoped.  As a result I guess it's likely to take ages to converge.

I'd certainly not want to wait for it for this particular issue;
however, I think there is value in having this (seeing that at least
Open Stack and s390x DPM already make use of such a mechanism.) But we
can still revisit this later on.

(I'm not too sold on branching out to other device types in general,
but there seems to be demand for it.)

> 
> See for instance the discussion on including vm config metadata in qcow2
> images: I think it's similar in scope (or the absense thereof).
> 
> Roman.


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