MTRR use in drivers

[H. Peter Anvin]

On 06/23/2013 02:56 PM, Henrique de Moraes Holschuh wrote:
> 
> And as far as I could find from Intel's not-that-complete public
> "specification updates", we are applying the errata workaround to a few more
> processors than strictly required, but since I have no idea how to write a
> test case, I can't whitelist the 3rd-gen Pentium M on my T43, nor can I get
> ThinkPad owners to test it for us on 1st and 2nd-gen Pentium M and report
> back.
> 

Which specific erratum are you referring to, here?  The "WC becomes UC"
erratum?  I don't think there is a sane testcase for it since it needs a
very complicated setup to trigger.

	-hpa