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Date: Tue, 06 Mar 2012 16:13:07 +0100
From: Paolo Bonzini <pbonzini@redhat.com>
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Subject: Re: [Qemu-devel] [PATCH 2/3] virtio-balloon: note optional features
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To: "Michael S. Tsirkin" <mst@redhat.com>
Cc: amit.shah@redhat.com, uobergfe@redhat.com, owasserm@redhat.com, qemu-devel@nongnu.org, armbru@redhat.com

Il 06/03/2012 16:08, Michael S. Tsirkin ha scritto:
> > > Can't we just add a flag to control this feature?
> > 
> > I think the sane thing here would be to remove it from the spec.
> 
> I guess we could but what does it buy us?

Not having a broken spec. :)

The pedantically correct thing to do would be to replace it with
VIRTIO_BALLOON_F_DONT_TELL_HOST (so that it breaks in the 1->0 direction
rather than 0->1).  But indeed it doesn't buy enough, so it's not worth
the effort of updating guests+QEMU+spec.

Paolo