Re: [libvirt] [PATCH v2 3/3] docs: news: Provide an update about the video type 'none'

On Thu, Jul 12, 2018 at 05:08:48PM +0200, Erik Skultety wrote: > Signed-off-by: Erik Skultety <eskultet(a)redhat.com&gt; > --- > docs/news.xml | 14 ++++++++++++++ > 1 file changed, 14 insertions(+) > > diff --git a/docs/news.xml b/docs/news.xml > index 773c95b0da..93832acc4c 100644 > --- a/docs/news.xml > +++ b/docs/news.xml > @@ -46,6 +46,20 @@ > </change> > </section> > <section title="Improvements"> > + <change> > + <summary> > + qemu: Introduce a new video model of type 'none' > + </summary> > + <description> > + Historically, libvirt would add a default 'cirrus' video device to > + a guest if the XML specified 'graphics' but lacked 'video'. Historical behavior is hardly news :P > This can > + be incovenient with GPU mediated devices which can serve as the only > + rendering devices within the guest, rather than still relying on an > + emulated GPU which would also be the primary device. Having a 'none' > + model is our only backwards compatible option how to turn this legacy > + behaviour off when needed. How about: Introduce a new video model type that disables the automatic addition of a video device to domains with 'graphics' specified in their XML. This can be useful with GPU mediated devices which can serve as the only rendering devices within the guest.