Re: [Patch v2] Make PCI extended config space (MMCONFIG) a driver opt-in

Matthew Wilcox
2008-01-13T20:43:21Z

On Sun, Jan 13, 2008 at 10:41:24AM -0800, Arjan van de Ven wrote:
> Note: There is not a 100% overlap between "need" and "will not be used in
> the patches that use legacy for < 256". In the other patches posted,
> extended config space will be used in cases where it won't be with my
> patch. (Most obvious one is an "lspci -vx" from automated scripts).

I believe you to be mistaken in this belief. If you take Ivan's patch,
conf1 is used for all accesses below 256 bytes. lspci -x only dumps
config space up to 64 bytes; lspci -xxxx is needed to show extended pci
config space.

--
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