linux-kernel - Re: [PATCH 1/6] x86/cpu: Break Vendor/Family/Model macros into separate header

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <6cc03056-af0c-44bd-9860-042f6d593b5e@intel.com>
Date: Tue, 10 Feb 2026 15:35:12 -0800
From: Dave Hansen <dave.hansen@...el.com>
To: "Luck, Tony" <tony.luck@...el.com>, Sohil Mehta <sohil.mehta@...el.com>
Cc: Dave Hansen <dave.hansen@...ux.intel.com>, zhao1.liu@...el.com,
 Borislav Petkov <bp@...en8.de>, "H. Peter Anvin" <hpa@...or.com>,
 Ingo Molnar <mingo@...hat.com>, Jon Kohler <jon@...anix.com>,
 Pawan Gupta <pawan.kumar.gupta@...ux.intel.com>,
 "Peter Zijlstra (Intel)" <peterz@...radead.org>,
 Thomas Gleixner <tglx@...nel.org>, x86@...nel.org,
 Iwona Winiarska <iwona.winiarska@...el.com>,
 LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/6] x86/cpu: Break Vendor/Family/Model macros into
 separate header

On 2/10/26 15:32, Luck, Tony wrote:
> On Tue, Feb 10, 2026 at 03:03:18PM -0800, Sohil Mehta wrote:
>> On 2/10/2026 2:17 PM, Dave Hansen wrote:
>>
>>> The reality is that we have non-x86 code using an x86 header. That's
>>> crazy and it's very very unusual and we're probably going to keep
>>> accidentally breaking it.
> Maybe the answer is to change the peci code to not do that crazy
> include of an arch/x86 file and simply have its own copies of the
> #define model numbers for the eight models it cares about?
> 
> If they add a ninth at some point, they have to change their code
> anyway to add a "case INTEL_FOO:". So adding the model number to
> their own local include file doesn't seem like much extra work.

That sounds fine as well.

Is the PECI model list growing all the time? Like will it grow for the
next decade?