Messages in this thread | | | Date | Wed, 5 Sep 2007 15:42:31 -0700 | From | "Yinghai Lu" <> | Subject | Re: [patches] [patch 3/5] x86: Add PCI extended config space access for AMD Barcelona |
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On 9/5/07, Andreas Herrmann <andreas.herrmann3@amd.com> wrote: > On Wed, Sep 05, 2007 at 01:05:25PM +0200, Arne Georg Gleditsch wrote: > > "H. Peter Anvin" <hpa@zytor.com> 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.
mmconfig is set in NB ( in new CPU), Do we still need to set mmconfig in SB like mcp55?
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