From mboxrd@z Thu Jan  1 00:00:00 1970
From: Keir Fraser <keir@xen.org>
Subject: Re: [PATCH][SVM] Fix 32bit Windows guest VMs save/restore
Date: Tue, 01 Feb 2011 23:35:49 +0100
Message-ID: <C96E4955.166D8%keir@xen.org>
References: <4D4875BD.5040706@amd.com>
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: <4D4875BD.5040706@amd.com>
List-Unsubscribe: <http://lists.xensource.com/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/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: Wei Huang <wei.huang2@amd.com>
Cc: "xen-devel@lists.xensource.com" <xen-devel@lists.xensource.com>
List-Id: xen-devel@lists.xenproject.org

Yeah, good. I'll double check it next week and apply it then for 4.1.x and
4.0.x.

 Thanks,
 Keir

On 01/02/2011 22:06, "Wei Huang" <wei.huang2@amd.com> wrote:

> How does this one look? It should address your concern about duplicating
> data in both vcpu and vmcb. I have tested it with both 32bit and 64bit
> Windows successfully.
> 
> -Wei
> 
> =================
> Fix 32bit guest VM save/restore issues associated with SYSENTER MSRs on
> AMD platforms.
> 
> This patch turn-on SYSENTER MSRs interception for 32bit guest VMs on AMD
> CPUs. With it, hvm_svm.guest_sysenter_xx fields always contain the
> canonical version of SYSENTER MSRs and are used in guest save/restore.
> The data fields in VMCB save area are updated as necessary.
> 
> Reported-by: James Harper <james.harper@bendigoit.com.au>
> Signed-off-by: Wei Huang <wei.huang2@amd.com>
> =================
>