Re: basic support for (software concept) "pci domains" in the MI pci code

[Manuel Bouyer <bouyer%antioche.eu.org@localhost>]

On Mon, Aug 24, 2009 at 06:01:00AM +1000, matthew green wrote:
>    
>    > On Mon, Aug 24, 2009 at 05:06:07AM +1000, matthew green wrote:
>    >>
>    >> when constructing a "unique" name the card.  my understanding is
>    >> that xen wants to have a domain concept available for both
>    >> presenting a full topology to the userland as well as helping pci
>    >> passthru, but i do not really understand what the use there is.
>    >
>    > AFAIK Xen doesn't need it, it just wants access to the different PCI
>    > busses. It just needs to uniquely identify a device, the autoconf
>    > index of the parent is enough for this.
>    
>    .. which, for lack of something better, I use in libpciaccess. If DRM  
>    could do the same the problem would go away.
> 
> hmmm, let me see if i can figure this out your way.
> (it's a much much smaller hack :-)

Actually having the notion of PCI domains compatible with other
OSes could be usefull, if done right (i.e. it doens't break what's
working right now)

-- 
Manuel Bouyer <bouyer%antioche.eu.org@localhost>
     NetBSD: 26 ans d'experience feront toujours la difference
--