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. 28, 2001
Filed:
Mar. 31, 1999
Steven Dale Goodman, Raleigh, NC (US);
Bharat B. Khatri, Cary, NC (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
Within a multiprocessor data processing system, a request for a system management interrupt by a requesting processor causes the state of at least the requesting processor to be saved in memory. Each processor's saved state includes contents of at least one internal software-writable register, where the software-writable register of the requesting processor contains an identifying signature. A system management interrupt handler is then executed. Execution of the system management interrupt handler entails determining, from the contents of at least one internal software-writable register saved within memory, the identity of the requesting processor. The system management interrupt handler then handles the system management interrupt in accordance with the determination of the requesting processor. The handling of the system management interrupt may entail reading data from or writing data into the saved state of the requesting processor.