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[Xen-devel] Fwd: Mouse Click and Context Switch Question

  • To: xen-devel@xxxxxxxxxxxxxxxxxxx
  • From: "Sujata Doshi" <sujatadoshi@xxxxxxxxx>
  • Date: Fri, 13 Oct 2006 12:27:31 -0400
  • Delivery-date: Fri, 13 Oct 2006 09:28:01 -0700
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  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>

I wasn't sure if the email below went through , since I was not
subscribed to the list. Would appreciate your response.

---------- Forwarded message ----------
From: Sujata Doshi <sujatadoshi@xxxxxxxxx>
Date: Oct 13, 2006 10:37 AM
Subject: Mouse Click and Context Switch Question
To: xen-devel@xxxxxxxxxxxxxxxxxxx

I am starting a research project which involves using Xen. Basically
we would like to monitor the input to an application running in the
guest OS . Specifically, we need to be able to figure out when an
input was made via a mouse click and what the coordinates of the mouse
pointer were on that click. If I understand correctly, on a mouse
click, an interrupt occurs which gets handled by the Xen VMM --- is
there a way of figuring out at the Xen VMM level what the coordinates
of the click are when this interrupt occurs ?
I understand this would also involve figuring out when a context
switch occurs to that particular application so that we can grab the
right mouse click. Is there an easy way to figure this context switch
out ?

I would appreciate if you could guide me with the above queries and
also which files in the Xen source I should be looking at to achieve
this task.
Thank you very much for your help

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