Processor mode for limiting the operation of guest software...

Information security – Prevention of unauthorized use of data including prevention...

Reexamination Certificate

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C718S001000, C711S006000, C703S027000

Reexamination Certificate

active

07818808

ABSTRACT:
In one embodiment, a processor mode is provided for guest software. The processor mode enables the guest software to operate at a privilege level intended by the guest software. When the guest software attempts to perform an operation restricted by the processor mode, the processor mode is exited to transfer control over the operation to a virtual-machine monitor, which runs outside this processor mode.

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