Re: [PATCH V9 1/4] perf/core: Add PERF_SAMPLE_DATA_PAGE_SIZE

[Leo Yan]

On Tue, Oct 20, 2020 at 09:19:45AM +0200, Peter Zijlstra wrote:
> On Tue, Oct 20, 2020 at 10:49:25AM +0800, Leo Yan wrote:
> > I can see there have another potentail customer to use page-size is
> > Arm SPE, but Arm SPE is hardware trace based sample but not interrupt
> > based sample.  For this case, I think this patch set cannot be
> > directly applied to the AUX trace data.
> 
> IIRC SPE is decoded in userspace, at which point we simply cannot access
> this data.

Yes, it's decoded in userspace.

Thanks for clarification!
Leo