Re: [PATCH 06/12] perf/x86-ibs: Precise event sampling with IBS forAMD CPUs

[Peter Zijlstra]

On Mon, 2012-04-02 at 20:19 +0200, Robert Richter wrote:
> + * IbsOpCntCtl (bit 19) of IBS Execution Control Register (IbsOpCtl,
> + * MSRC001_1033) is used to select either cycle or micro-ops counting
> + * mode. 

Ah is that what it does.. the BKDG doesn't appear to say this.
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