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SubjectRe: [patch] PCI Express Enhanced Config Patch - 2.6.0-test11
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.

grant
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