Re: [PATCH 02/31] perf, x86: Basic Haswell PMU support

[Peter Zijlstra]

On Fri, 2012-09-28 at 17:14 +0200, Stephane Eranian wrote:
> But then what happens if I pass a raw value that sets those bits on a
> processor without TSX?

We could filter those bits depending on cpu_has_rtm && cpu_has_hle on
event creation.

But fixed event constraints could include superfluous bits just fine,
they'll never appear.
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