From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:47761) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WNLis-0007rw-Oy for qemu-devel@nongnu.org; Tue, 11 Mar 2014 08:24:03 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1WNLij-0003lM-3Y for qemu-devel@nongnu.org; Tue, 11 Mar 2014 08:23:54 -0400 Received: from mail-ea0-x236.google.com ([2a00:1450:4013:c01::236]:40834) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WNLii-0003ky-QK for qemu-devel@nongnu.org; Tue, 11 Mar 2014 08:23:45 -0400 Received: by mail-ea0-f182.google.com with SMTP id b10so4262710eae.41 for ; Tue, 11 Mar 2014 05:23:43 -0700 (PDT) Date: Tue, 11 Mar 2014 13:23:38 +0100 From: Stefan Hajnoczi Message-ID: <20140311122338.GA7470@stefanha-thinkpad.redhat.com> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Subject: Re: [Qemu-devel] Disk I/O in QEMU List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Le Tan Cc: qemu-devel@nongnu.org On Tue, Mar 11, 2014 at 03:08:52PM +0800, Le Tan wrote: > Hi, I am now studying the disk I/O in QEMU, but I know little about QEMU. I > want to know how QEMU implements or emulates the disk I/O? Where to find > some materials about this? And if I can get all the disk I/O request from > the guest in QEMU? Thanks! QEMU emulates hardware including IDE or SCSI controllers. I/O requests go through QEMU. Look at hw/block/. Stefan