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RE: [Xen-devel] confused about the balloon code

To: "Keir Fraser" <Keir.Fraser@xxxxxxxxxxxx>, "tgh" <tianguanhua@xxxxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject: RE: [Xen-devel] confused about the balloon code
From: "Kaushik Barde" <Kaushik_Barde@xxxxxxxxxxx>
Date: Sat, 28 Apr 2007 11:04:12 -0700
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Thread-topic: [Xen-devel] confused about the balloon code
Keir:

It makes sense from memory/page management stand-point,
I don't understand any direct security link? May be I am taking it too
literally.

Please clarify.

-Kaushik 

-----Original Message-----
From: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
[mailto:xen-devel-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Keir Fraser
Sent: Saturday, April 28, 2007 1:17 AM
To: tgh; xen-devel@xxxxxxxxxxxxxxxxxxx
Subject: Re: [Xen-devel] confused about the balloon code

On 28/4/07 02:13, "tgh" <tianguanhua@xxxxxxxxxx> wrote:

> I am confused about the scrub_pages(), what is the meaning of
> scrub_pages, when should we use CONFIG_XEN_SCRUB_PAGES
> could you help me

It causes the guest to zero out pages that it gives back to Xen. It's a
security option.

 -- Keir



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