Re: [Xen-devel] [v4][PATCH 2/2] libxl: introduce gfx_passthru_kind

[Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>]

On Fri, 25 Sep 2015, Ian Campbell wrote:
> On Fri, 2015-09-18 at 16:30 +0800, Tiejun Chen wrote:
> > Although we already have 'gfx_passthru' in b_info, this doesn't suffice
> > after we want to handle IGD specifically. Now we define a new field of
> > type, gfx_passthru_kind, to indicate we're trying to pass IGD. Actually
> > this means we can benefit this to support other specific devices just
> > by extending gfx_passthru_kind. And then we can cooperate with
> > gfx_passthru to address IGD cases as follows:
> > 
> >     gfx_passthru = 0    => sets build_info.u.gfx_passthru to false
> >     gfx_passthru = 1    => sets build_info.u.gfx_passthru to true and
> >                            build_info.u.gfx_passthru_kind to DEFAULT
> >     gfx_passthru = "igd"    => sets build_info.u.gfx_passthru to true
> >                                and build_info.u.gfx_passthru_kind to IGD
> > 
> > Here if gfx_passthru_kind = DEFAULT, we will call
> > libxl__is_igd_vga_passthru() to check if we're hitting that table to need
> > to pass that option to qemu. But if gfx_passthru_kind = "igd" we always
> > force to pass that.
> > 
> > And "-gfx_passthru" is just introduced to work for qemu-xen-traditional
> > so we should get this away from libxl__build_device_model_args_new() in
> > the case of qemu upstream.
> > 
> > Signed-off-by: Tiejun Chen <tiejun.chen@xxxxxxxxx>
> 
> Acked + applied both patches, thanks.
> 
> Stefano -- are the QEMU side patches in qemu-upstream-unstable.git yet? If
> not I suppose this is a call/reminder to backport them from mainline or
> whatever.

No, they are not, they'll be in qemu-upstream for Xen 4.7.

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