Vmware, Inc.

Dmitriy Budko

Carl Alan Waldspurger

Xiaoxin Chen

Oded Horovitz

Pratap Subrahmanyam

Boris Weissman

One embodiment of the present invention is a method of operating a virtualization system, the method including: (a) instantiating a virtualization system on an underlying hardware machine, the virtualization system exposing a virtual machine in which multiple execution contexts of a guest execute; (b) monitoring the execution contexts from the virtualization system; and (c) selectively impeding computational progress of a particular one of the execution contexts.

Impeding progress of malicious guest software

A method is provided for monitoring registered code in a virtual machine of a virtualization system. The method includes instantiating a guest in the virtual machine of the virtualization system and monitoring execution of code registered for monitored execution in an execution context of the guest. The monitoring is performed by the virtualization system and is hidden from computations of the guest.

Monitoring execution of guest code in a virtual machine

Guests, such as virtual machines, that are running on a host hardware platform are selectively descheduled when an idling condition is detected. An example of the idling condition is that the guest has been executing instructions in an idle loop for more than a threshold period. Guest instructions may be evaluated for the idling condition in conjunction with binary translation.

Selective descheduling of idling guests running on a host computer system

A method is provided for executing guest computations in a virtual machine of a virtualization system and forcing execution of registered code into an execution context of the guest. The forcing is performed from the virtualization system based on an execution trigger monitored without reliance on functionality of the guest software.

Growing community of inventors

Sunnyvale, CA, United States of America

Dmitriy Budko