linux-kernel - Re: [RFC PATCH 03/56] cpu: Reset global mitigations

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Message-ID: <20251017163644.GGaPJwnNnZUHIlL3KF@fat_crate.local>
Date: Fri, 17 Oct 2025 18:36:44 +0200
From: Borislav Petkov <bp@...en8.de>
To: Josh Poimboeuf <jpoimboe@...nel.org>
Cc: "Kaplan, David" <David.Kaplan@....com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Peter Zijlstra <peterz@...radead.org>,
	Pawan Gupta <pawan.kumar.gupta@...ux.intel.com>,
	Ingo Molnar <mingo@...hat.com>,
	Dave Hansen <dave.hansen@...ux.intel.com>,
	"x86@...nel.org" <x86@...nel.org>,
	"H . Peter Anvin" <hpa@...or.com>, Alexander Graf <graf@...zon.com>,
	Boris Ostrovsky <boris.ostrovsky@...cle.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [RFC PATCH 03/56] cpu: Reset global mitigations

On Fri, Oct 17, 2025 at 09:03:08AM -0700, Josh Poimboeuf wrote:
> I'd say generic is probably the way to go, as the sysfs files and
> mitigations= interfaces are already generic, and users might want this
> on other arches eventually.

Then users will do the move then. What's the point of making some Kconfig glue
generic if there's no other-arch implementation in the works?

And if other arch does that, they can do those minor Kconfig modifications
then. We don't do "someone might want this" code design anyway...

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette