From mboxrd@z Thu Jan 1 00:00:00 1970 From: Anthony Liguori Subject: Re: [Qemu-devel] KVM call minutes for Feb 8 Date: Thu, 10 Feb 2011 15:00:49 +0100 Message-ID: <4D53EF91.7030400@codemonkey.ws> References: <4D526D0D.9020507@codemonkey.ws> <4D52A86A.1030407@codemonkey.ws> <4D52F20A.7070009@codemonkey.ws> <4D539800.3070802@codemonkey.ws> <20110210090748.GD673@redhat.com> <4D53BD22.1040800@redhat.com> <20110210111354.GA21681@redhat.com> <4D53DF42.4030700@codemonkey.ws> <4D53E155.5000807@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: Chris Wright , Gleb Natapov , kvm@vger.kernel.org, Markus Armbruster , qemu-devel@nongnu.org, Blue Swirl To: Avi Kivity Return-path: Received: from mail-fx0-f46.google.com ([209.85.161.46]:36383 "EHLO mail-fx0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751067Ab1BJOBD (ORCPT ); Thu, 10 Feb 2011 09:01:03 -0500 Received: by fxm20 with SMTP id 20so1504676fxm.19 for ; Thu, 10 Feb 2011 06:01:02 -0800 (PST) In-Reply-To: <4D53E155.5000807@redhat.com> Sender: kvm-owner@vger.kernel.org List-ID: On 02/10/2011 02:00 PM, Avi Kivity wrote: > On 02/10/2011 02:51 PM, Anthony Liguori wrote: >> On 02/10/2011 12:13 PM, Gleb Natapov wrote: >>> >>> Which spec? Even in this discussion we completely mixed different >>> things. 440FX is not a chipset. >> >> Yes, it is. It's a single silicon package with a defined pinout. If >> you don't believe me, re-read the spec. >> >> It's a MCM with the PIIX3 being internally connected. The >> connection between the i440fx and PIIX3 happens to be PCI but that's >> not always the case. Sometimes it's a proprietary bus. > > Aren't they two distinct chips, together comprising the chip-set? > > One (the northbridge) converts the system bus to PCI + some extra > wires, the other (southbridge) bridges PCI to ISA and contains some > embedded ISA devices. IIRC there are some wires between them that are > not PCI. Yes, you are correct. So I can understand an argument for: -device i440fx,id=pmc -device piix3,chipset=pmc Or something like that. Regards, Anthony Liguori