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

To: "Petersson, Mats" <Mats.Petersson@xxxxxxx>, Keir Fraser <keir@xxxxxxxxxxxxx>, PUCCETTI Armand <armand.puccetti@xxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxx>
From: Keir Fraser <keir@xxxxxxxxxxxxx>
Date: Mon, 12 Mar 2007 16:38:14 +0000
Delivery-date: Mon, 12 Mar 2007 09:37:30 -0700
List-id: Xen developer discussion <xen-devel.lists.xensource.com>
Thread-index: AcdkwQgTMoNF2D7XSwCSADsblWep1wAAECQwAABeH3QAAAvkoAAAREeCAAAUgwAAACAXIg==
Thread-topic: [Xen-devel] More page-table questions.

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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References:
- RE: [Xen-devel] More page-table questions.
  - From: Petersson, Mats

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