Re: [Qemu-devel] KVM call minutes 2013-01-29 - Port I/O

[Michael S. Tsirkin]

> > Here's a more interesting example:
> > 
> > -+-[0000:01]-+-00.0  NVIDIA Corporation GT218 [GeForce G210M]
> >  |           \-00.1  NVIDIA Corporation High Definition Audio Controller
> >  \-[0000:00]-+-00.0  Intel Corporation Mobile 4 Series Chipset Memory 
> > Controller Hub
> >              +-01.0  Intel Corporation Mobile 4 Series Chipset PCI Express 
> > Graphics Port
> > 
> > This system seems to have two host bridges with VGA behind each of them.
> > There's no bridge to control VGA routing, so I don't know how the
> > selection is done.  It's possible the g210m never sees legacy VGA
> > accesses in this mode.  This bios has another mode which makes the g210m
> > the primary graphics and hides the integrated graphics, essentially the
> > same as I mention above with hiding integrated endpoint graphics when
> > plugin graphics are used.  Thanks,
> 
> Wait, those are two different busses ... and there's no bridge ? Is that
> the funky x86 multi domain crackpot where you have multiple roots with
> non overlapping bus numbers in the same domain ?
> 
> Ben.

Domain numbering on x86 comes from firmware and you know what Linus
said about firmware developers ...

-- 
MST