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:
Oct. 13, 2009
Filed:
Apr. 18, 2003
Kevin J. Mcgrath, Los Gatos, CA (US);
Geoffrey S. Strongin, Austin, TX (US);
Dale E. Gulick, Austin, TX (US);
William A. Hughes, Burlingame, CA (US);
David S. Christie, Austin, TX (US);
Kevin J. McGrath, Los Gatos, CA (US);
Geoffrey S. Strongin, Austin, TX (US);
Dale E. Gulick, Austin, TX (US);
William A. Hughes, Burlingame, CA (US);
David S. Christie, Austin, TX (US);
Advanced Micro Devices, Inc., Sunnyvale, CA (US);
Abstract
A computer system includes a processor which may initialize a secure execution mode by executing a security initialization instruction. Further, the processor may operate in the secure execution mode by executing a secure operating system code segment. The computer system also includes an input/output (I/O) interface coupled to the processor via an I/O link. The I/O interface may receive transactions performed as a result of the execution of the security initialization instruction. The transactions include at least a portion of the secure operating system code segment. The I/O interface may also determine whether the processor is a source of the transactions. The computer system further includes a security services processor coupled to the I/O interface via a peripheral bus. The I/O interface may convey the transactions to the security services processor dependent upon determining that the processor is the source of the transactions.