WARNING - OLD ARCHIVES

This is an archived copy of the Xen.org mailing list, which we have preserved to ensure that existing links to archives are not broken. The live archive, which contains the latest emails, can be found at http://lists.xen.org/
   
 
 
Xen 
 
Home Products Support Community News
 
   
 

xen-devel

Re: [Xen-devel] Setting page type for GDT page

To: Trammell Hudson <hudson@xxxxxxxxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject: Re: [Xen-devel] Setting page type for GDT page
From: Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>
Date: Fri, 31 Aug 2007 18:51:34 +0100
Delivery-date: Fri, 31 Aug 2007 10:47:41 -0700
Envelope-to: www-data@xxxxxxxxxxxxxxxxxx
In-reply-to: <20070831163916.GN13786@xxxxxxxxxxxxxx>
List-help: <mailto:xen-devel-request@lists.xensource.com?subject=help>
List-id: Xen developer discussion <xen-devel.lists.xensource.com>
List-post: <mailto:xen-devel@lists.xensource.com>
List-subscribe: <http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=subscribe>
List-unsubscribe: <http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=unsubscribe>
Sender: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
Thread-index: Acfr95Hd0FAx/1fqEdyT/wAWy6hiGQ==
Thread-topic: [Xen-devel] Setting page type for GDT page
User-agent: Microsoft-Entourage/11.3.3.061214
You need to MMUEXT_UNPIN_TABLE the original page table provided by the
builder.

 -- Keir

On 31/8/07 17:39, "Trammell Hudson" <hudson@xxxxxxxxxxxxxx> wrote:

> On Fri, Aug 31, 2007 at 05:21:25PM +0100, Keir Fraser wrote:
>> The type code disagrees with you. There's still a writable mapping lurking
>> somewhere. Perhaps not in the page tables you are running on, though. What
>> do you do with the page tables that the domain builder provides you?
> 
> Nothing, so that's a very good possibility.  The domU has already
> switched to its new basetable pointer, but the old L1 page tables
> must be out there, somewhere, and are stil validated.
> 
> Thanks!
> -- Trammell
> 
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-devel



_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel

<Prev in Thread] Current Thread [Next in Thread>