Re: MTRR initialization

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Jesse Barnes <[email protected]> writes:
> To do this in a nicer way (and be less vulnerable to similar BIOS 
> funkiness) the kernel really needs full PAT support.  That should allow 
> WC over WB and WC over UC mappings to occur, at least if I'm 
> remembering the docs right...

PAT only really helps for device driver performance optimizations.
But if the basic WB MTRRs are wrong PAT cannot really salvage it. 

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