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Re: [Xen-devel] More page-table questions.

from [Keir Fraser] [Permanent Link][Original]
To: "Petersson, Mats" <Mats.Petersson@xxxxxxx>, Keir Fraser <keir@xxxxxxxxxxxxx>, PUCCETTI Armand <armand.puccetti@xxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject: Re: [Xen-devel] More page-table questions.
From: Keir Fraser <keir@xxxxxxxxxxxxx>
Date: Mon, 12 Mar 2007 16:38:14 +0000
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Thread-topic: [Xen-devel] More page-table questions.
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On 12/3/07 16:35, "Petersson, Mats" <Mats.Petersson@xxxxxxx> wrote:

> So in one way or another, the hypervisor knows about every write to the
> page-table, yes?

Only the hypervisor ever actually updates pagetables. Guest attempts are
trapped and emulated, or the guest explicitly executes a hypercall.

 -- Keir


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