The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 25, 2009
Filed:
Mar. 15, 2005
Vincent J. Zimmer, Federal Way, WA (US);
Michael D. Kinney, Olympia, WA (US);
Michael A. Rothman, Puyallup, WA (US);
Andrew J. Fish, Olympia, WA (US);
Vincent J. Zimmer, Federal Way, WA (US);
Michael D. Kinney, Olympia, WA (US);
Michael A. Rothman, Puyallup, WA (US);
Andrew J. Fish, Olympia, WA (US);
Intel Corporation, Santa Clara, CA (US);
Abstract
Provided are a method, system and program for effecting a processor operating mode change to execute device code. A processor receives a call while the processor is operating in a first mode, wherein the call is made to effect execution of device code to control a device. The processor determines whether the call is intended to change a processor operating mode from the first mode to a second mode. The state of the processor is selectively changed to a second mode in which the processor executes second mode instructions loaded in a protected section of memory inaccessible to an operating system in response to determining that the call is intended to change the processor operating mode. The second mode instructions execute the device code to control the device.