From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:49913) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1S7QuA-0008CI-Mb for qemu-devel@nongnu.org; Tue, 13 Mar 2012 08:32:46 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1S7Qu8-0003YE-Tu for qemu-devel@nongnu.org; Tue, 13 Mar 2012 08:32:42 -0400 Received: from cantor2.suse.de ([195.135.220.15]:35072 helo=mx2.suse.de) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1S7Qu8-0003Y4-Nf for qemu-devel@nongnu.org; Tue, 13 Mar 2012 08:32:40 -0400 Message-ID: <4F5F3E66.7030607@suse.de> Date: Tue, 13 Mar 2012 13:32:38 +0100 From: =?ISO-8859-1?Q?Andreas_F=E4rber?= MIME-Version: 1.0 References: <20120313122340.GA28849@liwp@linux.vnet.ibm.com> In-Reply-To: <20120313122340.GA28849@liwp@linux.vnet.ibm.com> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Subject: Re: [Qemu-devel] main-system-bus List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Wanpeng Li Cc: qemu-devel Hi, Am 13.03.2012 13:23, schrieb Wanpeng Li: > I am confused with what's the meaning of main-system-bus, it emulates > physical bus like FSB(front side bus) or just a virtual bus as the root > of device tree. The latter. It's an artificial construct that was needed for tree-oriented qdev and is likely to go away with QOM (there is no real bus state, just a convient extension of device for mmio+irqs). HTH, Andreas --=20 SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 N=FCrnberg, Germany GF: Jeff Hawn, Jennifer Guild, Felix Imend=F6rffer; HRB 16746 AG N=FCrnbe= rg