From mboxrd@z Thu Jan 1 00:00:00 1970 From: Anthony Liguori Subject: Re: Building domains as a lesser user (was Re: boot loaders for domain != 0) Date: Thu, 03 Feb 2005 21:54:22 -0600 Message-ID: <4202F1EE.4000908@codemonkey.ws> References: <4202EC36.8000103@codemonkey.ws> <4202EE37.4080707@diku.dk> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit In-Reply-To: <4202EE37.4080707@diku.dk> Sender: xen-devel-admin@lists.sourceforge.net Errors-To: xen-devel-admin@lists.sourceforge.net List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , List-Archive: To: Jacob Gorm Hansen Cc: xen-devel@lists.sourceforge.net List-Id: xen-devel@lists.xenproject.org Jacob Gorm Hansen wrote: > I would disagree that the trusted loader is a point of failure. It is > not trusted in the sense that we need to trust its code to behave > correctly, all we need is to trust it as not being malformed data that > can trigger an exploit in the domain builder, and of course it is not, > given that it is supplied by you the admin and not by a (potentially > hostile) user. Well, it's not the same as trusting a Domain's filesystem to be proper. But it still requires trusting that there are no exploitable bugs in the software. Using a lesser-user to create the domain within Domain-0 requires trusting there are no exploitable bugs in the kernel syscall interfaces. So, it's a point of failure as much as Linux is. > Anyway, this code is already written for Xen 1.3. You can find it at > http://www.diku.dk/~jacobg/self-migration/ Awesome! This is pretty cool stuff. Do you have plans to update for Xen 2.0/Linux 2.6? Kernel-driven migration seems like an appealing topic. Regards, > Jacob > > -- Anthony Liguori anthony@codemonkey.ws ------------------------------------------------------- This SF.Net email is sponsored by: IntelliVIEW -- Interactive Reporting Tool for open source databases. Create drag-&-drop reports. Save time by over 75%! Publish reports on the web. Export to DOC, XLS, RTF, etc. Download a FREE copy at http://www.intelliview.com/go/osdn_nl