Re: [RESEND PATCH v4 01/15] x86/resctrl: Support Privilege Level Zero Association (PLZA)

From: Borislav Petkov

Date: Wed Jul 08 2026 - 20:13:49 EST


Hey Namhyung,

On Wed, Jul 08, 2026 at 05:00:00PM -0700, Namhyung Kim wrote:
> Well.. it's changed as Linus wanted to not update the headers for
> trivial changes. The script is still there but it's not running
> automatically. For perf, we used to check ioctl and other user-visible
> changes for system call tracing. And some headers moved to the
> tools/perf/trace/beauty/include directory to sync separately.
>
> I think the headers will be sync-ed less frequently. So you may need to
> update the header for tooling changes manually.

I'm reading this as, we should not touch cpufeatures.h in tools/ and let you
guys decide when you actually need bits from it? In the sense: only when you
really need bits from it, you'll update it and other, unrelated bits which are
not needed, can remain different...

Or?

--
Regards/Gruss,
Boris.

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