On 07/21/2014 09:31 AM, Toshi Kani wrote:
> Do you have any comments / suggestions for this approach?
Approach to what, specifically?
Keep in mind the PAT bit is different for large pages. This needs to be
dealt with. I would also like a systematic way to deal with the fact
that Xen (sigh) is stuck with a separate mapping system.
I guess Linux could adopt the Xen mappings if that makes it easier, as
long as that doesn't have a negative impact on native hardware -- we can
possibly deal with some older chips not being optimal. However, my
thinking has been to have a "reverse PAT" table in memory of memory
types to encodings, both for regular and large pages.
-hpa
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