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[Xen-devel] Re: [PATCH] [RFC] scrub pages when balloon frees them


  • To: Stefan Berger <stefanb@xxxxxxxxxx>, xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>
  • From: Keir Fraser <keir.fraser@xxxxxxxxxxxxx>
  • Date: Wed, 02 Apr 2008 08:23:34 +0100
  • Delivery-date: Wed, 02 Apr 2008 00:25:20 -0700
  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>
  • Thread-index: AciUknWltGWqjwCFEd24ZAAWy6hiGQ==
  • Thread-topic: [PATCH] [RFC] scrub pages when balloon frees them

The domain is responsible for scrubbing its own secrets while it is alive.

 -- Keir

On 2/4/08 02:46, "Stefan Berger" <stefanb@xxxxxxxxxx> wrote:

> When a domain is killed, all its memory pages are cleared. However, I
> looked at the code path that is run when a domain releases memory from
> the balloon and could not find code that would scrub these pages. So I
> added this line, but I am wondering whether previously it was forgotten
> or not done due to some other reason?
> 
> Signed-off-by: Stefan Berger <stefanb@xxxxxxxxxx>
> 



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