linux-kernel - Re: [PATCH 04/15] x86/kbuild: Introduce the 'x86

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Message-ID: <1F6EBA7E-C859-47B3-8D8E-0788A1C9A13F@zytor.com>
Date: Fri, 09 May 2025 11:00:20 -0700
From: "H. Peter Anvin" <hpa@...or.com>
To: David Laight <david.laight.linux@...il.com>,
        Ingo Molnar <mingo@...nel.org>
CC: Arnd Bergmann <arnd@...db.de>, linux-kernel@...r.kernel.org,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Peter Zijlstra <peterz@...radead.org>, Borislav Petkov <bp@...en8.de>,
        Thomas Gleixner <tglx@...utronix.de>,
        Vitaly Kuznetsov <vkuznets@...hat.com>,
        Ard Biesheuvel <ardb@...nel.org>, David Woodhouse <dwmw@...zon.co.uk>,
        Masahiro Yamada <yamada.masahiro@...ionext.com>,
        Michal Marek <michal.lkml@...kovi.net>
Subject: Re: [PATCH 04/15] x86/kbuild: Introduce the 'x86_32' subarchitecture

On May 9, 2025 5:04:38 AM PDT, David Laight <david.laight.linux@...il.com> wrote:
>On Wed, 7 May 2025 08:35:05 +0200
>Ingo Molnar <mingo@...nel.org> wrote:
>
>...
>> Let's just have x86_32 as the internal primary subarchitecture name, 
>> with support for historic aliases like 'i386'. That it cleans up things 
>> for defconfig naming is a bonus.
>
>Aren't there 3 variants?
>Although the 3rd x32? running ILP32 in 'long mode' isn't used much
>(if at all?)
>
>	David

x32 is user space only.