Re: [PATCH] X86: MM: Add PAT Type write-through in combination with mtrr

H. Peter Anvin
2013-10-28T10:34:54Z

Sort of; the writes combine in the cache.

Borislav Petkov <bp@alien8.de> wrote:
>On Mon, Oct 28, 2013 at 11:17:49AM +0100, Ingo Molnar wrote:
>> And regular write-back cacheable isn't sufficient because the CPU
>> could do things like prefetch your range automatically?
>
>Yeah, he's doing a CLFLUSH anyway which basically makes it a
>write-through...

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