From mboxrd@z Thu Jan 1 00:00:00 1970 From: Joe Bonasera Subject: Re: Re: changeset 13403 ... Date: Mon, 29 Jan 2007 10:36:25 -0800 Message-ID: <45BE3EA9.5030505@sun.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: keir@xensource.com, kraxel@suse.de Cc: xen-devel@lists.xensource.com List-Id: xen-devel@lists.xenproject.org I'm dropping in on this part way through but out of context the following sounds dangerous. For example, Solaris domains assume at start of time, that only pages mapped in the start area are in use in any way. All other pages go immediately in our free lists. If you change this protocol, then we'll have backwards incompatibility issues to fix. > Date: Mon, 29 Jan 2007 16:35:48 +0100 > From: Gerd Hoffmann > Subject: Re: [Xen-devel] Re: changeset 13403 ... > To: Keir Fraser > Cc: Xen devel list > Message-ID: <45BE1454.9030101@suse.de> > Content-Type: text/plain; charset=ISO-8859-1 > > Hi, > >> You may even know that they only map part of >> the guest physical memory and so choose to locate the intermediate >> pagetables outside that mapped area. > > Good point, that solves at least a part of the problem, as the read-only > mapping is needed one-way only then ... > > thanks, > Gerd >