Re: [PATCH RFC 0/8] qemu: allow disabling certain virtio revisions

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On Mon, 2016-08-01 at 10:02 -0400, Laine Stump wrote:
> 2) To assure that the actual device presented to the guest doesn't
> change in the future when defaults are changed, we may want to autofill
> "version" even when none is specified. (We would of course be stuck with
> the unfortunate problem of what to do with existing configs)

I don't think we should worry too much about this: since we
lock on a versioned machine type on guest creation, and we can
assume the default virtio version will only change along with
a bump in machine type version[1], we'll always present the
same hardware to the guest.


[1] What would be the point in versioned machine types
    otherwise? :)
-- 
Andrea Bolognani / Red Hat / Virtualization

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