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] [PATCH] xenpaging: clear page content after evict

To: Olaf Hering <olaf@xxxxxxxxx>
Subject: Re: [Xen-devel] [PATCH] xenpaging: clear page content after evict
From: Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>
Date: Mon, 10 Oct 2011 12:33:29 +0100
Cc: xen-devel@xxxxxxxxxxxxxxxxxxx
Delivery-date: Mon, 10 Oct 2011 04:34:24 -0700
Envelope-to: www-data@xxxxxxxxxxxxxxxxxxx
In-reply-to: <f67616df0e0891ddddba.1318058133@xxxxxxxxxxxx>
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>
Newsgroups: chiark.mail.xen.devel
References: <f67616df0e0891ddddba.1318058133@xxxxxxxxxxxx>
Sender: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
Olaf Hering writes ("[Xen-devel] [PATCH] xenpaging: clear page content after 
evi> xenpaging: clear page content after evict
> 
> If the guest happens to read from the gfn while xenpaging is in the process of
> evicting the page, the guest may read zeros instead of actual data.
> Also if eviction fails the page content will be corrupted and xenpaging wont
> attempt to restore the page.

As far as the tools are concerned,

Acked-by: Ian Jackson <ian.jackson@xxxxxxxxxxxxx>

Ian.

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

<Prev in Thread] Current Thread [Next in Thread>