Re: bus_space/bus_dma and PAE

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

On Sun, Jan 25, 2009 at 01:58:02PM +0100, Christoph Egger wrote:
> > Of what use would this be ? DomU don't have access to the BIOS map AFAIK,
> > and I can't see what this would buy us to fake one.
> 
> You get the BIOS map via
> 
> err = HYPERVISOR_memory_op(XENMEM_memory_map, &memmap);
> 
> and it is useful to deal with PCI memory holes which you have in
> a Dom0 anyway and also in a DomU with PCI passthrough.

Specific code will have to be written for this then. It's not the purpose
of my patch.
Also I'm not sure for what this information is used; I guess it's for
the PCI* fixup options and the dri video interface (so it's not needed
in the general case).

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