From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1EFCGj-00054s-IX for qemu-devel@nongnu.org; Tue, 13 Sep 2005 11:00:22 -0400 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1EFCGb-000538-Uu for qemu-devel@nongnu.org; Tue, 13 Sep 2005 11:00:14 -0400 Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1EFCGb-0004vU-Lr for qemu-devel@nongnu.org; Tue, 13 Sep 2005 11:00:13 -0400 Received: from [32.97.110.130] (helo=e32.co.us.ibm.com) by monty-python.gnu.org with esmtp (TLS-1.0:DHE_RSA_3DES_EDE_CBC_SHA:24) (Exim 4.34) id 1EFCGb-0002mS-7B for qemu-devel@nongnu.org; Tue, 13 Sep 2005 11:00:13 -0400 Received: from westrelay02.boulder.ibm.com (westrelay02.boulder.ibm.com [9.17.195.11]) by e32.co.us.ibm.com (8.12.10/8.12.9) with ESMTP id j8DExZPV126566 for ; Tue, 13 Sep 2005 10:59:48 -0400 Received: from d03av01.boulder.ibm.com (d03av01.boulder.ibm.com [9.17.195.167]) by westrelay02.boulder.ibm.com (8.12.10/NCO/VERS6.7) with ESMTP id j8DEwFtC527852 for ; Tue, 13 Sep 2005 08:58:15 -0600 Received: from d03av01.boulder.ibm.com (loopback [127.0.0.1]) by d03av01.boulder.ibm.com (8.12.11/8.13.3) with ESMTP id j8DEwFNm001791 for ; Tue, 13 Sep 2005 08:58:15 -0600 Received: from [9.65.110.174] (sig-9-65-110-174.mts.ibm.com [9.65.110.174]) by d03av01.boulder.ibm.com (8.12.11/8.12.11) with ESMTP id j8DEwEo2001779 for ; Tue, 13 Sep 2005 08:58:15 -0600 Message-ID: <4326E903.7070900@us.ibm.com> Date: Tue, 13 Sep 2005 09:58:11 -0500 From: Anthony Liguori MIME-Version: 1.0 Subject: Re: [Qemu-devel] About qemu emulation speed (a question) and supported OS References: <1dc7f0e3050913053635cd61af@mail.gmail.com> <20050913133813.GA28356@jbrown.mylinuxbox.org> In-Reply-To: <20050913133813.GA28356@jbrown.mylinuxbox.org> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Reply-To: qemu-devel@nongnu.org List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Jim C. Brown wrote: >>- If no, is it possible that one day qemu reaches the speed of vmware? >> >> >> > >qemu itself? Nope. > >kqemu/qvm86 don't have this limitation though. Fabrice had said that he wants >kqemu to be able to do total virtualization (both kernel and userland bits); >basically all the translation code of qemu would be left unused but the hardware >emulation would still be shared. > > I reckon this means taking advantage of VT and Pacifica when they're available so the kernel code can be safely run on bare metal. FWIW, Xen is already using QEMU in this way. It would be very neat to see this technique applied to a Type II VMM. Regards, Anthony Liguori