Re: PCI MMCONFIG aperture size

From: Andi Kleen
Date: Tue Aug 22 2006 - 10:58:32 EST


On Tuesday 22 August 2006 16:58, Tim Hockin wrote:
> On Tue, Aug 22, 2006 at 09:55:31AM +0200, Andi Kleen wrote:
> >
> > > This says to me that (as long as the MCFG table has an End Bus Number of
> > > 31) a 32 MB decode area (32 MB aligned, too) is valid.
> > >
> > > Would something like the below patch be accepted? It makes my system
> > > work...
> >
> > I already got a patch to remove the complete e820 validation code because
> > it broke far more than it fixed. That should fix your problem too.
>
> Great! Coming in 2.6.18?

Yes.

>
> > > Also, why are we forcing 32 bit base addresses? ACPI defines it to be a
> > > 64 bit base...
> >
> > Where do you think we do that?
>
> Looking at 2.6.17, we always have u32 base_address and u32
> base_reserved. base_address is the only one ever referenced, that I can
> see. I guess I should grab 2.6.18 pre-releases and recheck.

True. Please submit a patch.

-Andi
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