From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from [140.186.70.92] (port=41583 helo=eggs.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1PnX8T-0001u8-Q3 for qemu-devel@nongnu.org; Thu, 10 Feb 2011 09:04:42 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1PnX8M-0000Nj-6h for qemu-devel@nongnu.org; Thu, 10 Feb 2011 09:04:35 -0500 Received: from mail-fx0-f45.google.com ([209.85.161.45]:61552) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1PnX8M-0000NV-22 for qemu-devel@nongnu.org; Thu, 10 Feb 2011 09:04:34 -0500 Received: by fxm12 with SMTP id 12so1541713fxm.4 for ; Thu, 10 Feb 2011 06:04:33 -0800 (PST) Message-ID: <4D53F06C.9090500@codemonkey.ws> Date: Thu, 10 Feb 2011 15:04:28 +0100 From: Anthony Liguori MIME-Version: 1.0 Subject: Re: [Qemu-devel] KVM call minutes for Feb 8 References: <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> <20110210132730.GB24525@redhat.com> In-Reply-To: <20110210132730.GB24525@redhat.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Gleb Natapov Cc: Chris Wright , kvm@vger.kernel.org, Markus Armbruster , qemu-devel@nongnu.org, Blue Swirl , Avi Kivity On 02/10/2011 02:27 PM, Gleb Natapov wrote: > I don't care how command line will look like, but I do not see how you > will support ide=off without device composition unless you put ad-hoc > ifs all over your i440fx device code. > Yes, in the piix3 device code, the ide property would trigger an if(). BTW, I'm extremely sceptical that you really do have machines w/o IDE at all. Even the servers we ship with only SAS or SCSI support still have an integrated IDE controller. Since most servers are built from the same chipset design that has IDE, I don't really see how you could build a modern system without IDE. >> And that's okay, but the base modelling ought to follow rea >> hardware closely with deviations being the exception. >> >> > You keep saying this without explaining why. But with device composition > you will have exactly that, you will compose real chipsets using config > files, not code. > Yeah, that's been the direction we've been going in since qdev was introduced. I'm now convinced that this is overly ambitious. By simply reducing the scope of conversion, we get 99% of the benefit with 10% of the effort. Seems like a no brainer to me. Regards, Anthony Liguori > -- > Gleb. > >