Other

Citrix Systems, Inc.

Egenera, Inc.

Robert Oakes

John D Webb

Christopher W Midgley

Bill Buckley

Ewan Milne

Justin Maynard

A computer processing system includes a processor to operate in a first computing environment. The processor creates a generic application layer by scrubbing a new application layer within the computer processing system to remove objects associated with the new application layer and specific to the first computing environment. The processor further creates within the computer processing system a single composited layered image by merging the generic application layer with at least one other application layer having objects associated therewith.

Out of band layer scrubbing

Application layering is a technology that separates applications from an operating system image. In some cases, information inside an application layer needs to be modified when that layer is delivered to a computer to be executed correctly in a specific environment. Described is a technique to allow those operations to be defined and executed outside of the operating system that will be running the application layer, so that a single application layer can be delivered to heterogeneous end points without the need to take up additional computation on the guest machine it is being delivered to, to ensure application compatibility when applications reside in more than one layer, to install applications into a layer without knowledge of a specific platform, and to modify the image to provide the required drivers and services to support any platform.

A system and method to virtualize BIOS, including run time services. A processing system has a processor, a memory system with a predefined physical address space, a storage medium, and a communication medium between the processor and the storage medium. The processing system is operable in a pre-execution environment in which a specified portion of the physical address space is used to map basic input/output system (BIOS) run time service routines. The specified portion contains RAM memory. A BIOS virtualization system includes an image of the BIOS processor-executable instructions on the storage medium and processor-executable instructions that retrieve the BIOS image from the storage medium and store the BIOS image into the RAM memory mapped into the second specified portion of physical address space.

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Somerville, MA, United States of America

Robert Oakes