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 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>