Re: [PATCH v7 3/4] perf,x86: add Intel RAPL PMU support

[Borislav Petkov]

On Fri, Nov 29, 2013 at 09:09:46PM +0100, Stephane Eranian wrote:
> > So in theory it would be harmless to export the values even if not
> > supported.  What is the worst failure mode?  That somehow a recent CPU
> > doesn't support the MSR and we get a GPF when trying to access it?
> >
> Yes. I think that's what you get with DRAM on client for instance.

We have rdmsr_safe for non-existent MSRs, in case touching such is the
issue.

-- 
Regards/Gruss,
    Boris.

Sent from a fat crate under my desk. Formatting is fine.
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