linux-kernel - Re: [RFC PATCH 40/56] x86/alternative: Use sync_core_nmi

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Message-ID: <20251016162716.GDaPEc5NWGAHq5n6VV@fat_crate.local>
Date: Thu, 16 Oct 2025 18:27:16 +0200
From: Borislav Petkov <bp@...en8.de>
To: Dave Hansen <dave.hansen@...el.com>
Cc: "Kaplan, David" <David.Kaplan@....com>,
	Peter Zijlstra <peterz@...radead.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Josh Poimboeuf <jpoimboe@...nel.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 40/56] x86/alternative: Use sync_core_nmi_safe()

On Thu, Oct 16, 2025 at 09:15:32AM -0700, Dave Hansen wrote:
> On 10/16/25 08:34, Kaplan, David wrote:
> >> BTW, will AMD do that SERIALIZE instruction?
> > It is not supported on current parts, I can't comment on future ones.
> 
> I think that was Peter's nice way of asking AMD to go implement
> SERIALIZE. ;)

Why does it matter?

:-P

-- 
Regards/Gruss,
    Boris.

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