Re: [PATCH v3 4/7] x86/tlb: add tlb flush all factor for specificCPUs

From: Andi Kleen
Date: Tue May 08 2012 - 11:56:38 EST

This seems a bit concerning from a forward compatibility point of view.
It would make more sense to assume that future processors would behave
more like the most recent (Sandy Bridge in your case) unless there is
evidence to the contrary.
This would not work on new Atoms, which inter mix model numbers.

In the past I did a hack in other software to check the cache sizes to distinguish the two
for unknown models It's not pretty however.


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