From mboxrd@z Thu Jan 1 00:00:00 1970 From: david Subject: accessing hvm-domU memory from dom0 Date: Tue, 04 Jan 2011 15:19:02 +0100 Message-ID: <4D232C56.3030909@gmx.at> References: <4D0F9100.8020003@gmx.at> <1292925738.4500.1371.camel@zakaz.uk.xensource.com> <4D1B8175.9000600@gmx.at> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <4D1B8175.9000600@gmx.at> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: xen-devel@lists.xensource.com List-Id: xen-devel@lists.xenproject.org hi, I have an additional question: Is it possible to access the pseudo physical memory of a hvm-domU in dom0 "out of the box", to read/write from/into it? If not, what would be the "easiest" way to implement this possibility in dom0? Implement a new hypercall which offers this access? I found intresting functions in the public xen-headers (linux 2.6.32.26) like HYPERVISOR_memory_op in include/asm/xen/hypercall.h and the structures xen_memory_exchange or xen_memory_map in memory.h. I'm currently trying to figure out if this is the functionality I'm looking for. Have you any hints for me? thanks, best regards, david