06397242 is referenced by 367 patents.

In a computer that has hardware processor, and a memory, the invention provides a virtual machine monitor (VMM) and a virtual machine (VM) that has at least one virtual processor and is operatively connected to the VMM for running a sequence of VM instructions, which are either directly executable or non-directly executable. The VMM includes both a binary translation sub-system and a direct execution sub-system, as well as a sub-system that determines if VM instructions must be executed using binary translation, or if they can be executed using direct execution. Shadow descriptor tables in the VMM, corresponding to VM descriptor tables, segment tracking and memory tracing are used as factors in the decision of which execution mode to activate. The invention is particularly well-adapted for virtualizing computers in which the hardware processor has an Intel x86 architecture.

Title
Virtualization system including a virtual machine monitor for a computer with a segmented architecture
Application Number
9/179137
Publication Number
6397242 (B1)
Application Date
October 26, 1998
Publication Date
May 28, 2002
Inventor
Mendel Rosenblum
Stanford
CA, US
Edouard Bugnion
Menlo Park
CA, US
Scott W Devine
Palo Alto
CA, US
Agent
Jeffrey Slusher
US
Assignee
VMWare
CA, US
IPC
G06F 9/00
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