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

[Top] [All Lists]
<prev [Date] next>
[Advanced]
 <prev [Thread] next>

Re: [Xen-devel] [PATCH 00/11] [v2] misc changes for kexec in pv-on-hvm g

from [Keir Fraser] [Permanent Link][Original]
To: Olaf Hering <olaf@xxxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject: Re: [Xen-devel] [PATCH 00/11] [v2] misc changes for kexec in pv-on-hvm guests
From: Keir Fraser <keir.xen@xxxxxxxxx>
Date: Thu, 28 Jul 2011 14:43:43 +0100
Cc:
Delivery-date: Thu, 28 Jul 2011 06:44:26 -0700
Dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=user-agent:date:subject:from:to:message-id:thread-topic :thread-index:in-reply-to:mime-version:content-type :content-transfer-encoding; bh=+MeC9wXYYsmRo115Bw6J7t2E50gMNlPRCd4oHlxnnaA=; b=cDJ7ATxiAdN1hBFnjuzouKyxOKKc8bCDYhiJKh8xdhvrFgs88EsJL8DOPtR23UWdNx IhieeJllEPVvIklSKiHqi/jDTrqsR1oWvi+n9IfODbFwwOf6ZZnUOdiHxyMRUFoB1CaP tYkNFWqxavoaLznBzAMFzpxlXiOHTT74HuXvM=
Envelope-to: www-data@xxxxxxxxxxxxxxxxxxx
In-reply-to: <20110728132300.248098023@xxxxxxxxx>
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/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=subscribe>
List-unsubscribe: <http://lists.xensource.com/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=unsubscribe>
Sender: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
Thread-index: AcxNLF2I39/zcg9QGEC70gd2UqEHig==
Thread-topic: [Xen-devel] [PATCH 00/11] [v2] misc changes for kexec in pv-on-hvm guests
User-agent: Microsoft-Entourage/12.30.0.110427 
On 28/07/2011 14:23, "Olaf Hering" <olaf@xxxxxxxxx> wrote:

> A fixed kexec-tools-2.0.2 package is required:
> http://lists.infradead.org/pipermail/kexec/2011-May/005026.html
> However, as I just found out, xenfs unconditionally adds
> /proc/xen/capabilities
> even for hvm guest.
> 
> So: how is a hvm guest supposed to be detected in 3.0?

Rip the moving parts from tools/misc/xen-detect.c. It does rely on hooking
SIGILL if you want to safely probe for being a PV guest (uses a
paravirtualised CPUID instruction that is normally an illegal instruction).

 -- Keir



_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel
[More with this subject...]
<Prev in Thread] Current Thread [Next in Thread>
Previous by Date:  [Xen-devel] [PATCH V3] hvmloader: Enable SCI in QEMU if is not., Anthony PERARD
Next by Date:  Re: [Xen-devel] [PATCH 2/6] xen/hvm kexec: unregister shutdown+sysrq watches during reboot, Olaf Hering
Previous by Thread:  [Xen-devel] [PATCH 09/11] xen/hvm kexec: unregister the watch of the "device" node during reboot, Olaf Hering
Next by Thread:  Re: [Xen-devel] [PATCH 00/11] [v2] misc changes for kexec in pv-on-hvm guests, Konrad Rzeszutek Wilk
Indexes:  [Date] [Thread] [Top] [All Lists]
 
   

Copyright 2005-2025, Citrix Systems Inc. All rights reserved. Legal and Privacy