There's a small set of events on Nehalem, that are not supported in processors with CPUID signature 06_1AH, 06_1EH, and 06_1FH.
There's a small set of events on Nehalem, that are not supported in
processors with CPUID signature 06_1AH, 06_1EH, and 06_1FH.

Refuse to allocate them on unsupported model.

Submitted by:	Davide Italiano <davide.italiano@gmail.com>
MFC after:	1 month

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