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RE: [Xen-devel] [Q] Allow rdpmc access from DOM-0


  • To: "Keir Fraser" <Keir.Fraser@xxxxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxx
  • From: "Mohapatra, Hemant" <Hemant.Mohapatra@xxxxxxx>
  • Date: Thu, 6 Sep 2007 10:43:30 -0500
  • Delivery-date: Thu, 06 Sep 2007 08:45:02 -0700
  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>
  • Thread-index: AcfwVQH+9J//LtPURtKs0pYAbvrHOQANtvuAAAKnO7kAAH/EYAAAlIBVAABtOQA=
  • Thread-topic: [Xen-devel] [Q] Allow rdpmc access from DOM-0

>  From: Keir Fraser [mailto:Keir.Fraser@xxxxxxxxxxxx]
>  Subject: Re: [Xen-devel] [Q] Allow rdpmc access from DOM-0
>  
>  Your problem might then be that your RDPMC emulation path is only
>  executed
>  if the instruction was trapped in guest kernel mode. I guess you are
>  trying
>  to execute it in guest user mode, and you may find that this mode is
>  tested
>  for before you reach the RDPMC case that you've added.


Yes, that could be it. Could you please direct me to the appropriate
place for user-mode emulation path(s)? 

Thanks.
Hemant




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