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[Xen-devel] RE: [Xen-users] Xen --> Guest

  • To: "Petersson, Mats" <Mats.Petersson@xxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxx, xen-users@xxxxxxxxxxxxxxxxxxx
  • From: Security Initiative Team <passrete@xxxxxxxxx>
  • Date: Wed, 21 Mar 2007 08:54:48 -0700 (PDT)
  • Delivery-date: Thu, 22 Mar 2007 02:35:29 -0700
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  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>

I have some monitoring capabilities set up in Xen
and when that is triggered, I want to notify the DomU
to take some action.

Example: If a certain part of memory is touched, Xen
sees that and wants to inform the DomU of this.

So, all I need is to set a bit somewhere that can
be constantly polled by the DomU (waiting for it to flip)


"Petersson, Mats" <Mats.Petersson@xxxxxxx> wrote:

> -----Original Message-----
> From: xen-users-bounces@xxxxxxxxxxxxxxxxxxx
> [mailto:xen-users-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of
> Security Initiative Team
> Sent: 21 March 2007 01:03
> To: xen-devel@xxxxxxxxxxxxxxxxxxx; xen-users@xxxxxxxxxxxxxxxxxxx
> Subject: [Xen-users] Xen --> Guest
> What's the easiest way to send 1-bit of information from
> Xen to a guest domain?

What do you want this 1-bit of information to achieve at the other

Without actually knowing what you're trying to achieve, it's kind of
hard to answer the question.

> The event channel mechanism seems fairly complicated.
> Thanks,
> -Brian
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