Data processing: software development – installation – and managem – Software program development tool – Translation of code
Reexamination Certificate
2003-10-14
2009-06-23
Dam, Tuan Q (Department: 2192)
Data processing: software development, installation, and managem
Software program development tool
Translation of code
C717S134000, C703S023000, C712S209000, C712S227000
Reexamination Certificate
active
07552426
ABSTRACT:
The present invention compensates for the shortcomings in x86 processor architectures by providing a set of “synthetic instructions” that cause a trap and thereby provide an opportunity for the virtual machine (VM) to process the instructions safely. By using instructions that are “illegal” to the x86 architecture, but which are nonetheless understandable by a virtual machine, the method of using these synthetic instructions to perform well-defined actions in the virtual machine that are otherwise problematic when performed by traditional instructions to an x86 processor but provide much-improved processor virtualization for x86 processor systems.
REFERENCES:
patent: 6397242 (2002-05-01), Devine et al.
patent: 6658657 (2003-12-01), Lueh
patent: 7127548 (2006-10-01), Bennett et al.
patent: 7191440 (2007-03-01), Cota-Robles et al.
patent: 2002/0165848 (2002-11-01), Rautenbach et al.
patent: 2003/0217250 (2003-11-01), Bennett et al.
patent: 2004/0025158 (2004-02-01), Traut
patent: 2005/0076186 (2005-04-01), Traut
patent: 2005/0080753 (2005-04-01), Vega et al.
patent: 1524596 (2005-04-01), None
Robin et al., “Analysis of the Intel Pentium's Ability to Support a Secure Virtual Machine Monitor”, Aug. 14, 2000, USENIX, pp. 1-17.
A. Tamches, “Fine-Grained Dynamic Instrumentation of Commodity Operating System”, May 2001, University of Wisconsin—Madison, pp. 1-213.
J. S. Robin, “Analyzing the Intel Pentium's Capability to Support a Secure Virtual Machine Monitor”, Sep. 1999, Naval Postgraduate School, pp. 1-98.
K. P. Lawton, “Bochs x86 Emulator—monitor-host.c”, Mar. 25, 2000, bochs.sourceforge.net, pp. 1-42.
Carlos et al., “User-Kernel Reactive Threads for Linux”, Jan. 2003, SCI 2003, pp. 1-6.
V86, “Virtual 8088 Mode”, 1986, Intel 80386 Programmer's Reference, pp. 1-18.
K. Lawton, “Running Multiple Operating Systems Concurrently on an IA32 PC Using Virtualization Techniques”, Nov. 1999, pp. 1-44.
Dam Tuan Q
Microsoft Corporation
Wang Ben C
Woodcock & Washburn LLP
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