Re: [patches] [patch 3/5] x86: Add PCI extended config space access for AMD Barcelona

[Arne Georg Gleditsch]

"H. Peter Anvin" <hpa@xxxxxxxxx> writes:
> You're missing the point.   How will the PCI bus transactions be
> different when using MMCONFIG versus your extended CF8 version?

Conceivably this is useful if the IO hub does not support MMCONFIG
accesses.  The AMD 8111 does not, as far as I can see.  At least I
have an Opteron system where MMCONFIG is not supported, and I assume
it's because the 8111 doesn't provide it.  I don't know if this is
going to be a realistic scenario for Barcelona systems.

-- 
								Arne.
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