Re: [PATCH v2] X86: MM: Add PAT Type write-through in combinationwith mtrr

From: Andreas Werner
Date: Sun Nov 03 2013 - 13:14:38 EST


On Sun, Nov 03, 2013 at 09:44:46AM -0800, H. Peter Anvin wrote:
> On 11/03/2013 04:02 AM, Andreas Werner wrote:
> >
> > Since marking IO Memory as cachable is not valid, WT is the
> > best way for caching/bursting on MMIO Devices.
> >
>
> Uh... WT *is* cachable...
>
> -hpa
>
>

Sorry my mistake, i mean "marking IO Memory as WB is not valid"

regards
Andy
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