Andi Kleen <[email protected]> writes:
> From: "Aaron Durbin" <[email protected]>
> Check to see if MMCONFIG region is marked as reserved in the e820 map before
> inserting the MMCONFIG region into the resource map. If the region is not
> entirely marked as reserved in the e820 map attempt to find a region that is.
> Only insert the MMCONFIG region into the resource map if there was a region
> found marked as reserved in the e820 map. This should fix a known regression
> in 2.6.19 by not reserving all of the I/O space on misconfigured systems.
[...]
Before anyone complains. This one patch is actually not in, because
Linus' decision was it instead to revert the mcfg reservation
code for .19. He already did it for i386 and i followed on x86-64.
But this patch went into the posted patchkit by mistake.
Will be probably revisited for .20.
-Andi
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