From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jamie Lokier Subject: Re: [Qemu-devel] [PATCH] Add definitions for current cpu models.. Date: Tue, 19 Jan 2010 22:11:24 +0000 Message-ID: <20100119221124.GA11920@shareable.org> References: <4B549016.6090501@redhat.com> <4B560A88.9@codemonkey.ws> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: john cooper , "Przywara, Andre" , qemu-devel@nongnu.org, KVM list To: Anthony Liguori Return-path: Received: from mail2.shareable.org ([80.68.89.115]:37595 "EHLO mail2.shareable.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754597Ab0ASWLc (ORCPT ); Tue, 19 Jan 2010 17:11:32 -0500 Content-Disposition: inline In-Reply-To: <4B560A88.9@codemonkey.ws> Sender: kvm-owner@vger.kernel.org List-ID: Anthony Liguori wrote: > On 01/18/2010 10:45 AM, john cooper wrote: > > x86 Conroe Intel Celeron_4x0 (Conroe/Merom Class Core 2) > > x86 Penryn Intel Core 2 Duo P9xxx (Penryn Class Core 2) > > x86 Nehalem Intel Core i7 9xx (Nehalem Class Core i7) > > x86 Opteron_G1 AMD Opteron 240 (Gen 1 Class Opteron) > > x86 Opteron_G2 AMD Opteron 22xx (Gen 2 Class Opteron) > > x86 Opteron_G3 AMD Opteron 23xx (Gen 3 Class Opteron) > > I'm very much against having -cpu Nehalem. The whole point of this is > to make things easier for a user and for most of the users I've > encountered, -cpu Nehalem is just as obscure as -cpu qemu64,-sse3,+vmx,... When I saw that table just now, I had no idea whether Nehalem is newer and more advanced than Penryn, or the other way around. I also have no idea if "Core i7" is newer than "Core 2 Duo" or not. I'm not a typical user: I know quite a lot about x86 architecture; I just haven't kept up to date enough to know the code/model names. Typical users will know less about them. It's only from seeing the G1/G2/G3 order that I guess they are listed in ascending order of functionality. Naturally, if I were choosing one, I'd want to choose the one with the most capabilities that works on whatever my host hardware provides. -- Jamie