From mboxrd@z Thu Jan  1 00:00:00 1970
From: Keir Fraser <keir@xensource.com>
Subject: Re: changeset 13403 ...
Date: Mon, 29 Jan 2007 13:48:07 +0000
Message-ID: <C1E3AB97.8601%keir@xensource.com>
References: <45BDF947.6080300@suse.de>
Mime-Version: 1.0
Content-Type: text/plain;
	charset="US-ASCII"
Content-Transfer-Encoding: 7bit
Return-path: <xen-devel-bounces@lists.xensource.com>
In-Reply-To: <45BDF947.6080300@suse.de>
List-Unsubscribe: <http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-devel>,
	<mailto:xen-devel-request@lists.xensource.com?subject=unsubscribe>
List-Post: <mailto:xen-devel@lists.xensource.com>
List-Help: <mailto:xen-devel-request@lists.xensource.com?subject=help>
List-Subscribe: <http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-devel>,
	<mailto:xen-devel-request@lists.xensource.com?subject=subscribe>
Sender: xen-devel-bounces@lists.xensource.com
Errors-To: xen-devel-bounces@lists.xensource.com
To: Gerd Hoffmann <kraxel@suse.de>
Cc: Xen devel list <xen-devel@lists.xensource.com>
List-Id: xen-devel@lists.xenproject.org




On 29/1/07 13:40, "Gerd Hoffmann" <kraxel@suse.de> wrote:

> Just noticed that domU kexec doesn't work any more, changeset 13403 is
> the culpit.  Hmm.  No, it isn't easy to work-around ...
> 
> cheers,

Two pagetable switches in a single multicall? First switch is to a pagetable
which maps only the multicall structure. This small intermediate table has
to be mapped read-only in the original pagetables and in the final
pagetables, but it will only be a few pages of memory (4 in the worst case).

 -- Keir