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:
May. 15, 2001
Filed:
Oct. 02, 1998
Douglas Craig Bossen, Austin, TX (US);
Alongkorn Kitamorn, Austin, TX (US);
Charles Andrew McLaughlin, Round Rock, TX (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method and system for deconfiguring a CPU in a processing system is disclosed. In one aspect, a processing system is disclosed that comprises a central processing unit (CPU), and a memory coupled to the CPU. The error status register for capturing information concerning the status of the CPU. The processing system includes a service processor for gathering and analyzing status information from the CPU error register. The processing system also includes a nonvolatile device coupled to the service processor. The nonvolatile device includes a deconfiguration area. The deconfiguration area stores information concerning the status of the CPU from the service processor. The deconfiguration area also provides information for deconfiguring a CPU during a boot time of the processing system. Accordingly, through the present invention, CPU errors are detected during normal computer operations by error detection logic. This detection is utilized during any subsequent boot process by service processor firmware to deallocate the defective CPU. This is accomplished through the use of error status registers within the CPU and through the use of a deconfiguration area in the nonvolatile device which provides information directly to the service processor.