×

Method and apparatus for facilitating recognition of an open event window during operation of guest software in a virtual machine environment

  • US 7,620,949 B2
  • Filed: 03/31/2004
  • Issued: 11/17/2009
  • Est. Priority Date: 03/31/2004
  • Status: Active Grant
First Claim
Patent Images

1. A method comprising:

  • receiving a request to transition control to a virtual machine (VM) from a virtual machine monitor (VMM);

    determining that the request to transition control is associated with a request to be informed of an open event window of the VM, based on accessing a pending event indicator maintained by the VMM and determining that the pending event indicator maintained by the VMM is set to a delivery value;

    transitioning control to the VM;

    performing an event window check to determine whether the VM has an open event window;

    if the event window check indicates that the VM has an open event window, transitioning control to the VMM; and

    if the VM does not have an open event window, repeating the event window check after each instruction executed by the VM until determining that the VM has an open event window.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×