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Providing support for a timer associated with a virtual machine monitor

  • US 20060075402A1
  • Filed: 09/30/2004
  • Published: 04/06/2006
  • Est. Priority Date: 09/30/2004
  • Status: Active Grant
First Claim
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1. A method comprising:

  • transitioning control to a virtual machine (VM) from a virtual machine monitor (VMM);

    determining that a VMM timer indicator is set to an enabling value;

    identifying a VMM timer value configured by the VMM;

    periodically comparing a current value of a timing source with the VMM timer value;

    generating an internal event if the current value of the timing source has reached the VMM timer value; and

    transitioning control to the VMM in response to the internal event, without incurring an event handling procedure in any one of the VMM and the VM.

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