Re: [PATCH v3 1/6] virtio_balloon: transitional interface

["Michael S. Tsirkin" <mst-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>]

On Wed, Apr 01, 2015 at 01:52:44PM +0200, Cornelia Huck wrote:
> On Wed, 1 Apr 2015 12:49:02 +0200
> "Michael S. Tsirkin" <mst-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> wrote:
> 
> > On Wed, Apr 01, 2015 at 12:35:45PM +0200, Michael S. Tsirkin wrote:
> > > Virtio 1.0 doesn't include a modern balloon device.
> > > But it's not a big change to support a transitional
> > > balloon device: this has the advantage of supporting
> > > existing drivers, transparently.
> > > 
> > > Signed-off-by: Michael S. Tsirkin <mst-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
> > > ---
> > >  include/uapi/linux/virtio_balloon.h | 11 ++++++++--
> > >  drivers/virtio/virtio_balloon.c     | 43 +++++++++++++++++++++++++++++--------
> > >  2 files changed, 43 insertions(+), 11 deletions(-)
> > 
> > So all in all 32 LOC added, and 9 out of these
> > deal with endian-ness differences.
> > 
> > Seems like a small cost for guests to pay for a clean spec, no?
> > 
> 
> I'm not opposed to this per se, but I'm not totally convinced of the
> usefulness :)
> 
> Seeing the qemu side would be helpful.

Cleaning this up for submission, should be ready RSN.

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