From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:55681) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bjYhH-0007SF-0M for qemu-devel@nongnu.org; Mon, 12 Sep 2016 17:23:23 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1bjYhC-000519-TB for qemu-devel@nongnu.org; Mon, 12 Sep 2016 17:23:22 -0400 Received: from gateway33.websitewelcome.com ([192.185.146.70]:40018) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bjYhC-000511-NO for qemu-devel@nongnu.org; Mon, 12 Sep 2016 17:23:18 -0400 Received: from cm4.websitewelcome.com (unknown [108.167.139.16]) by gateway33.websitewelcome.com (Postfix) with ESMTP id 03EC98ADE59AF for ; Mon, 12 Sep 2016 16:23:18 -0500 (CDT) Received: from raithlin by estate.websitewelcome.com with local (Exim 4.86_1) (envelope-from ) id 1bjYhA-000Jyd-PD for qemu-devel@nongnu.org; Mon, 12 Sep 2016 16:23:16 -0500 Message-ID: Date: Mon, 12 Sep 2016 16:23:16 -0500 From: "Stephen Bates" MIME-Version: 1.0 Content-Type: text/plain;charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable Subject: [Qemu-devel] (no subject) List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Hi I sent this to qemu-discuss with no success so resending to qemu-devel. I am doing some very low level OS design work and wanted to be able to alter some values in the physical memory of my QEMU guest. I can see quit= e a few ways to print/dump both physical and virtual addresses but nothing that can alter arbitrary physical/virtual addresses? Does such a feature exist in Qemu and if it does are there pointers to documentation for it? I do see that we can use file backing for very large memory regions via the memory-backing-file option but I am not really trying to alter massiv= e regions of memory in this case. Cheers Stephen Bates