From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jacob Gorm Hansen Subject: Re: Pinning L1 page table with wrpt Date: Mon, 15 Aug 2005 10:55:01 +0200 Message-ID: <43005865.7080208@diku.dk> References: <43005285.3030300@diku.dk> <507393ea65cf6247a1e69db53530fead@cl.cam.ac.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <507393ea65cf6247a1e69db53530fead@cl.cam.ac.uk> 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 Fraser Cc: xen-devel List-Id: xen-devel@lists.xenproject.org Keir Fraser wrote: > > On 15 Aug 2005, at 09:29, Jacob Gorm Hansen wrote: > >> it seems I no longer need to pin l1 pages when running with writable >> page tables in xen-unstable -- e.g. I can now pin a l2 table without >> having pinned its l1 descendants first, without Xen complaining. Do I >> understand things correctly? > > > Yes you do. And then Xen will pin them for me recursively, or they will not be pinned at all but just checked against having writable references? I seem to have a problem when combining writable pagetables and the traditional pinned ones in the same domain. The pagetables I inherit from the domain builder need to be unpinned before I can use the pages they reference for my own page tables, or I get complaints about trying to create a writable linear p.t. thanks, Jacob