Re: [patch 02/11] PAT x86: Map only usable memory in x86_64 identity map and kernel text

[Andi Kleen]

> just to make sure i understood the attribute priorities right: we cannot 
> just mark it WB in the PAT and expect it to be write-back - the UC of 
> the MTRR will control?

There are different kinds of UC: UC+ and UC-. One controls the other doesn't.

-Andi
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