On Thursday 23 February 2006 18:44, Linus Torvalds wrote:
>
> On Thu, 23 Feb 2006, Andi Kleen wrote:
> >
> > I was to suggest the same thing originally, but on several boxes I checked
> > there weren't any special MTRRs < 1MB, only in the PCI memory hole
> > <4GB. I suspect there isn't just any interesting hardware in 640K anymore.
>
> I wasn't talking about the regular MTRR's, but about the magic one: the
> "Fixed Range MTRRs" that only map the low 1MB.
>
> I'm pretty sure that they are still used by the BIOS to set up the
> 640k->1M window.
Ah you're right i forgot that one.
-Andi
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