Re: [RFC/PATCH 4/4] perf/x86: Relax privilege filter restriction on AMD IBS

[Peter Zijlstra]

On Tue, Sep 03, 2024 at 09:34:58AM -0700, Namhyung Kim wrote:

> > While the IBS thing only sucks when you use exclude_[user,kernel]
> > things. Stealth suckage is bad and enrages people.
> 
> Right, let's make it explicit like the above.

Given Ravi's concern, perhaps a whole second PMU instance 'ibs_swfilt'
or so? Might have more problems than its worth though, but perhaps
something worth exploring for a bit.