From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8B0A019DF6A for ; Sun, 27 Apr 2025 10:18:26 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1745749106; cv=none; b=h4PB3Hp+mklwELmG46qLZrBhS/v0LCi2kisp0XMFDdUdtygD0NbCe/jAkh7VxOMgkxHBOru0kDQDqFGS+m+yhYV45MTChDF4FDXGChxPK4GiOQ1Z3xphldbfZ0f/nSh3WqOsYZB67oNM8IZAmYL7XKtm2fxKgvzBj+xa2+pVni4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1745749106; c=relaxed/simple; bh=L7uhmgzdcPMMNpeCjXVtvKibb8+nFSEltpr8Sjv+mGw=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=p+rIntZSjMOvmDTEsjAAQ+f/O8jCbq+zjGlSK93izu1e0gZmDBLNltPm1Bgb3OoRrHR+V4BmX+ZsYFdorRBmu2JxnZIRcdTuvHIpP5cYtWuIeLzAy2WWtitdf6c6YNavn2MgI2TeJwoHUgobHe3wT4vQbkh0NhVaCXu/lQPRzJY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=RvCrjiyb; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="RvCrjiyb" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 6E785C4CEEF; Sun, 27 Apr 2025 10:18:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1745749106; bh=L7uhmgzdcPMMNpeCjXVtvKibb8+nFSEltpr8Sjv+mGw=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=RvCrjiybvTY0/WvL1ox/pY2ZElx88ZlFJXqTv22U0Yn7gwzaqmLmacBEfhQgvgrfL 8SI72doZ4zQQ2fTGluj2fPPRLSdBU1mQVPKKpB5lc3hS0YdF2CCIXnNBpGr3VSINjE CHWysqhvkgob59ydkDUqfVBQ+mQSkUAfk/eyOhkb37d0UJRmy02DjlHSNY+jHSBp/x njihO9Gof91jSkeg4Dtv0Vv6CXBm+U517/QysoHnszSSAZsN2VYrEATGNZ/cVCEiy0 duvXRbmEOmujKqCS8PutcLDaBQmi2b3QfVuFe48V/0H+YjxXirETLEIMUdYhwKcpIc w+9GubMfHo3mw== Date: Sun, 27 Apr 2025 12:18:20 +0200 From: Ingo Molnar To: "H. Peter Anvin" Cc: Linus Torvalds , Arnd Bergmann , Arnd Bergmann , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, Juergen Gross , Boris Ostrovsky , Alexander Usyskin , Greg Kroah-Hartman , Mateusz =?utf-8?Q?Jo=C5=84czyk?= , Mike Rapoport , Ard Biesheuvel , Peter Zijlstra , linux-kernel@vger.kernel.org, xen-devel@lists.xenproject.org Subject: Re: [PATCH] [RFC] x86/cpu: rework instruction set selection Message-ID: References: <20250425141740.734030-1-arnd@kernel.org> <9D1971C6-8C13-4526-8D2B-37A1D3B0B066@zytor.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <9D1971C6-8C13-4526-8D2B-37A1D3B0B066@zytor.com> * H. Peter Anvin wrote: > The undefined zero case applies to family < 6 as far as I know... the > same platforms which don't have cmov... So, technically, these are family 5 CPUs with CMOV support, if Kconfig.cpu can be believed: MGEODE_LX MCRUSOE Right? Ingo