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

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Message-ID: <e2924e3a-33a8-4fa7-8e08-bd0c3fc8e668@citrix.com>
Date: Thu, 16 Oct 2025 22:53:22 +0100
From: Andrew Cooper <andrew.cooper3@...rix.com>
To: peterz@...radead.org
Cc: David.Kaplan@....com, boris.ostrovsky@...cle.com, bp@...en8.de,
 dave.hansen@...ux.intel.com, graf@...zon.com, hpa@...or.com,
 jpoimboe@...nel.org, linux-kernel@...r.kernel.org, mingo@...hat.com,
 pawan.kumar.gupta@...ux.intel.com, tglx@...utronix.de, x86@...nel.org,
 Andrew Cooper <amc96@...f.net>
Subject: Re: [RFC PATCH 40/56] x86/alternative: Use sync_core_nmi_safe()

>> Ok. Btw, how long has Intel supported SERIALIZE?
> I'm not sure.. its fairly new, so

Serialise was introduced in GLC/GMT, so AlderLake and Sapphire Rapids. 
It's not even 4 years old.

~Andrew