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] switch out of 32e mode issue

To: "Zhai, Edwin" <edwin.zhai@xxxxxxxxx>, Ian Pratt <m+Ian.Pratt@xxxxxxxxxxxx>
Subject: Re: [Xen-devel] switch out of 32e mode issue
From: Keir Fraser <keir@xxxxxxxxxxxxx>
Date: Tue, 03 Jul 2007 09:57:21 +0100
Cc: xen-devel@xxxxxxxxxxxxxxxxxxx
Delivery-date: Tue, 03 Jul 2007 01:55:34 -0700
Envelope-to: www-data@xxxxxxxxxxxxxxxxxx
In-reply-to: <20070703065148.GD20797@xxxxxxxxxxxxxxxxxxxxxx>
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: Ace9UCpqaLfOJilDEdyXVgAX8io7RQ==
Thread-topic: [Xen-devel] switch out of 32e mode issue
User-agent: Microsoft-Entourage/11.3.3.061214
On 3/7/07 07:51, "Zhai, Edwin" <edwin.zhai@xxxxxxxxx> wrote:

> I have read the your changeset 13830
> "[XEN] kexec: add compatability shim for kexec in 32on64 mode", which seems to
> be used for kexec a 32b kernel on 32e xen.

You're aware it got broken when 64-bit Xen became relocatable (in physical
memory map), and was only fixed by changesets 15377 and 15379?

> I borrow some of the code from xen/arch/x86/x86_64/compat_kexec.S for similar
> purpose(switch out of 32e mode in xen) by similar way:

Why would you want to do that, except for kexec?

 -- Keir


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