Patent ID: 7861245
Filing Date: 2010-12-28
Classification: G06F

Abstract:
1. An apparatus comprising a processor to: receive a request to transition control from a virtual machine monitor (VMM) to a virtual machine (VM); determine 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; transition control to the VM in response to the request to transition control to the VM From the VMM; perform an event window check to determine whether an event window of the VM is open; transition control to the VMM if the event window check indicates that the event window of the VM is open; and if the VM does not have an open event window, repeat the event window check after each instruction executed by the VM until determining that the VM has the open event window.