From mboxrd@z Thu Jan  1 00:00:00 1970
From: Razvan Cojocaru <rcojocaru@bitdefender.com>
Subject: Re: Modify cr0 at dom0
Date: Fri, 17 Oct 2014 09:48:29 +0300
Message-ID: <5440BBBD.4040709@bitdefender.com>
References: <201410170947517919470@gmail.com>,
	<5440B647.2000502@bitdefender.com>
	<201410171434447719581@gmail.com>
Mime-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: 7bit
Return-path: <xen-devel-bounces@lists.xen.org>
In-Reply-To: <201410171434447719581@gmail.com>
List-Unsubscribe: <http://lists.xen.org/cgi-bin/mailman/options/xen-devel>,
	<mailto:xen-devel-request@lists.xen.org?subject=unsubscribe>
List-Post: <mailto:xen-devel@lists.xen.org>
List-Help: <mailto:xen-devel-request@lists.xen.org?subject=help>
List-Subscribe: <http://lists.xen.org/cgi-bin/mailman/listinfo/xen-devel>,
	<mailto:xen-devel-request@lists.xen.org?subject=subscribe>
Sender: xen-devel-bounces@lists.xen.org
Errors-To: xen-devel-bounces@lists.xen.org
To: machi1271 <machi1271@gmail.com>, xen-devel <xen-devel@lists.xen.org>
List-Id: xen-devel@lists.xenproject.org

On 10/17/14 09:34, machi1271 wrote:
> Thanks Razvan~
>  
> I'm new to Xen and Linux.
> Could you please tell me is there any Xen-independent manner to modify
> CR0, or the memory area protected by CR0.WP bit?

Sure, there's an example here:

https://stackoverflow.com/questions/3962950/how-to-set-control-register-0-cr0-bits-in-x86-64-using-gcc-assembly-on-linux


Razvan