From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:44740) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VLtTr-0006PG-EM for qemu-devel@nongnu.org; Tue, 17 Sep 2013 07:30:15 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1VLtTk-0006hl-Th for qemu-devel@nongnu.org; Tue, 17 Sep 2013 07:30:07 -0400 Received: from host-82-135-62-35.customer.m-online.net ([82.135.62.35]:56728 helo=mail.embedded-brains.de) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VLtTk-0006hS-MB for qemu-devel@nongnu.org; Tue, 17 Sep 2013 07:30:00 -0400 Message-ID: <52383D34.2030407@embedded-brains.de> Date: Tue, 17 Sep 2013 13:29:56 +0200 From: Sebastian Huber MIME-Version: 1.0 References: <8549a20530b9331af1c3d725f4cb9a3e4fe3a9b2.1373429432.git.peter.crosthwaite@xilinx.com> <5237251B.1090801@embedded-brains.de> In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: quoted-printable Subject: Re: [Qemu-devel] [PATCH v1 4/4] target-arm: Add CP15 VBAR support List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Peter Maydell Cc: QEMU Developers On 2013-09-17 10:37, Peter Maydell wrote: > In any case a new arm_features bit is hardly a big deal: the actual > question is whether it makes sense to provide this register that > shouldn't really exist for the cpu configurations we're modelling. I use Qemu to run unit tests for a real-time operating system that runs o= n real=20 Xilinx Zynq or Altera Cyclone-V for example. Both systems use an ARM=20 Cortex-A9MPCore with Security Extensions. The operating system will run = in=20 secure mode all the time within a single address space and one-to-one map= ped=20 addresses. Everything we use from this Security Extensions is the VBAR. = So=20 for me the only missing Qemu feature is the VBAR if I want to use nearly = the=20 same binary on Qemu and the real hardware. --=20 Sebastian Huber, embedded brains GmbH Address : Dornierstr. 4, D-82178 Puchheim, Germany Phone : +49 89 189 47 41-16 Fax : +49 89 189 47 41-09 E-Mail : sebastian.huber@embedded-brains.de PGP : Public key available on request. Diese Nachricht ist keine gesch=C3=A4ftliche Mitteilung im Sinne des EHUG= .