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Date: Sat, 26 Apr 2025 20:55:50 +0200
From: Ingo Molnar <mingo@kernel.org>
To: "H. Peter Anvin" <hpa@zytor.com>
Cc: Arnd Bergmann <arnd@kernel.org>, Thomas Gleixner <tglx@linutronix.de>,
	Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
	Dave Hansen <dave.hansen@linux.intel.com>, x86@kernel.org,
	Arnd Bergmann <arnd@arndb.de>, Juergen Gross <jgross@suse.com>,
	Boris Ostrovsky <boris.ostrovsky@oracle.com>,
	Alexander Usyskin <alexander.usyskin@intel.com>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Mateusz =?utf-8?Q?Jo=C5=84czyk?= <mat.jonczyk@o2.pl>,
	"Mike Rapoport (Microsoft)" <rppt@kernel.org>,
	Ard Biesheuvel <ardb@kernel.org>,
	Peter Zijlstra <peterz@infradead.org>, linux-kernel@vger.kernel.org,
	xen-devel@lists.xenproject.org,
	Linus Torvalds <torvalds@linux-foundation.org>
Subject: Re: [PATCH] [RFC] x86/cpu: rework instruction set selection
Message-ID: <aA0sNu0gcjlvhlDT@gmail.com>
References: <20250425141740.734030-1-arnd@kernel.org>
 <aAyiganPp_UsNlnZ@gmail.com>
 <E130C6F4-5602-44E6-ABB0-B87B389C0026@zytor.com>
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* H. Peter Anvin <hpa@zytor.com> wrote:

> Dropping CMOV would mean dropping P5 support.

Yeah, I think we should make the cutoff at the 686 level. Is there any 
strong reason not to do that? Stable kernels will still exist for a 
very long time for ancient boards.

	Ingo