linux-kernel - Re: [PATCH 03/12] x86/mm: add X86_FEATURE

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Message-ID: <20250103210712.GIZ3hRgC02xc3Ys3sC@fat_crate.local>
Date: Fri, 3 Jan 2025 22:07:12 +0100
From: Borislav Petkov <bp@...en8.de>
To: Rik van Riel <riel@...riel.com>
Cc: x86@...nel.org, linux-kernel@...r.kernel.org, kernel-team@...a.com,
	dave.hansen@...ux.intel.com, luto@...nel.org, peterz@...radead.org,
	tglx@...utronix.de, mingo@...hat.com, hpa@...or.com,
	akpm@...ux-foundation.org, nadav.amit@...il.com,
	zhengqi.arch@...edance.com, linux-mm@...ck.org
Subject: Re: [PATCH 03/12] x86/mm: add X86_FEATURE_INVLPGB definition.

On Fri, Jan 03, 2025 at 01:27:41PM -0500, Rik van Riel wrote:
> I still see dozens of flags in /proc/cpuinfo here on
> 6.11.

We can't remove those flags because they're an ABI.

> When did that change?

This should explain: Documentation/arch/x86/cpuinfo.rst

> I'm not convinced things will be more readable if 4
> patches get squashed down into one.

Not 4 patches - you merge this one with patch 6 - the first patch that uses
the flag.

Thx.

-- 
Regards/Gruss,
    Boris.

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