Messages in this thread | | | Date | Mon, 9 Jan 2023 22:39:55 +0100 | From | Borislav Petkov <> | Subject | Re: [PATCH v11 04/13] x86/cpufeatures: Add Bandwidth Monitoring Event Configuration feature flag |
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On Mon, Jan 09, 2023 at 09:25:32PM +0000, Luck, Tony wrote: > It feels like the old "rule" was "make it visible in /proc/cpuid" unless there was some > good reason NOT to do it. But that has resulted in the "flags" line getting ridiculously > long and hard for humans to read (141 fields with 926 bytes on my Skylake, > more on more modern CPUs).
Yap, imagine every possible CPUID bit were in there...
> I don't know if we'd break anything if we dropped: > > cat_l3 cdp_l3 mba cqm_llc cqm_occup_llc cqm_mbm_total cqm_mbm_local > > from /proc/cpuinfo.
I wouldn't mind if we remove them from cpuinfo, frankly.
> Perhaps the "rule" should be written in Documentation/{somewhere}?
This started documenting it:
Documentation/x86/cpuinfo.rst
-- Regards/Gruss, Boris.
https://people.kernel.org/tglx/notes-about-netiquette
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