Messages in this thread | | | Date | Sat, 31 Jan 2004 21:41:01 -0700 | From | Grant Grundler <> | Subject | Re: [patch] PCI Express Enhanced Config Patch - 2.6.0-test11 |
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On Sat, Jan 31, 2004 at 02:57:29PM -0700, Eric W. Biederman wrote: > Is it really safe to treat the base address as a u32?
Sorry...I missed this in the code...but the following confuses me:
> I know > if I was doing the BIOS and that address was tied to a 32bit BAR I > would be extremely tempted to put those 256M of address space above > 4G.
uhmm, how can one put a 32-bit BAR above 4G? You meant 64-bit BAR?
> Point being I don't think it is safe to assume the BIOS always puts > the extended PCI configuration space below 4G.
where MMCONFIG lives is orthogonal to where BARs point to. I'm pretty sure I missed the point...sorry.
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