Getting a handle on caching
Posted May 16, 2008 18:13 UTC (Fri) by giraffedata
Parent article: Getting a handle on caching
The article seems to say that one of the weaknesses of MTRRs is that they're controlled by BIOS. But I don't see that -- there's nothing inherent in MTRRs that makes the BIOS set them; Linux could set them if it wanted to, as easily as it sets PAT bits.
Rather, you'd have to say it's a weakness of PAT that only the OS can control them; BIOS isn't an option.
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