Xen 
 
Home About Xen.org Xen Xen Summit Wiki Mailing List Bug Tracker Xen Downloads
 
   
 

xen-devel

[Xen-devel][PATCH]Fix a shadow error with L*_DISALLOW_MASK for HVM 64bit

To: <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject: [Xen-devel][PATCH]Fix a shadow error with L*_DISALLOW_MASK for HVM 64bit guest
From: "Xin, Xiaohui" <xiaohui.xin@xxxxxxxxx>
Date: Thu, 31 Aug 2006 16:03:29 +0800
Delivery-date: Thu, 31 Aug 2006 01:05:47 -0700
Envelope-to: www-data@xxxxxxxxxxxxxxxxxx
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: AcbM0/F7zv0hsJ1+QLe260GyDHZ3gg==
Thread-topic: [Xen-devel][PATCH]Fix a shadow error with L*_DISALLOW_MASK for HVM 64bit guest

This patch fixes a shadow error. For 64bit guest, the [62:52] bits of PML4 4 levels page table entries is software available.

But the L*_DISALLOW_MASK forbids to generate this kind of shadow page table entries.

 

Signed-off-by: Xiaohui Xin <xiaohui.xin@xxxxxxxxx>

Attachment: disallow.diff
Description: disallow.diff

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel
<Prev in Thread] Current Thread [Next in Thread>
  • [Xen-devel][PATCH]Fix a shadow error with L*_DISALLOW_MASK for HVM 64bit guest, Xin, Xiaohui <=