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:
Jan. 14, 2014
Filed:
Sep. 26, 2011
John R. Feehrer, Westford, MA (US);
Hugh R. Kurth, Woburn, MA (US);
Carl F. Humphreys, Burlington, MA (US);
David M. Kahn, Makawao, HI (US);
John G. Johnson, San Jose, CA (US);
Tayfun Kocaoglu, Los Gatos, CA (US);
Gregory C. Onufer, Palo Alto, CA (US);
John R. Feehrer, Westford, MA (US);
Hugh R. Kurth, Woburn, MA (US);
Carl F. Humphreys, Burlington, MA (US);
David M. Kahn, Makawao, HI (US);
John G. Johnson, San Jose, CA (US);
Tayfun Kocaoglu, Los Gatos, CA (US);
Gregory C. Onufer, Palo Alto, CA (US);
Oracle International Corporation, Redwood Shores, CA (US);
Abstract
The disclosed embodiments provide a system that validates message-signaled interrupts. During operation, the system receives a message-signaled interrupt from a requesting device. This message-signaled interrupt includes an interrupt vector that identifies an interrupt, and is accompanied by an identification tag that identifies the source of the interrupt. The system uses the interrupt vector to access a stored tag from a tracking mechanism that associates source devices with their assigned interrupt vector(s). The system then compares the identification tag and the stored tag to validate the message-signaled interrupt.