Re: [Fwd: Re: [PATCH 0/5]PCI: x86 MMCONFIG]

[Bhavana Nagendra]

Tony Camuso wrote:
> > Robert Hancock wrote:
> >
> > First off, I would like to see confirmation from the horses's mouths 
> > here (namely AMD, ServerWorks/Broadcom, and whoever else) that there 
> > is no other way to get around this problem than disabling MMCONFIG 
> > for accesses behind those chips.
>
> And here are the excerpts from that page of the spec which are salient
> to the present discussion:
>
> ----------------------------------------------------------------------
>
> The base configuration space of the AMD-8132 and PCI(-X) devices 
> attached to it are accessible using only
> the mechanism defined in PCI 2.3. Registers of PCI-X Mode 2 devices 
> attached to the AMD-8132 in the
> extended configuration space are not accessible. The AMD-8132 has no 
> registers in the extended
> configuration space.
>
> Fix Planned
> No
Prarit, Tony et al, this is as official as it gets.   It's pretty 
clearly stated.

Bhavana
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