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:
Sep. 06, 2016
Filed:
Sep. 08, 2014
Applicant:
Raytheon Company, Waltham, MA (US);
Inventor:
Brandon Woolley, Murphy, TX (US);
Assignee:
Raytheon Company, Waltham, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 12/08 (2016.01); G06F 12/14 (2006.01); G06F 3/06 (2006.01); G06F 12/10 (2016.01); G06F 9/455 (2006.01); G06F 9/46 (2006.01); G06F 9/54 (2006.01);
U.S. Cl.
CPC ...
G06F 12/1458 (2013.01); G06F 3/0622 (2013.01); G06F 3/0665 (2013.01); G06F 3/0673 (2013.01); G06F 9/45533 (2013.01); G06F 9/46 (2013.01); G06F 9/468 (2013.01); G06F 9/547 (2013.01); G06F 12/084 (2013.01); G06F 12/0806 (2013.01); G06F 12/0842 (2013.01); G06F 12/1009 (2013.01); G06F 12/1081 (2013.01); G06F 2212/1052 (2013.01); G06F 2212/281 (2013.01); G06F 2212/62 (2013.01);
Abstract
A separation kernel isolating memory domains within a shared system memory is executed on the cores of a multicore processor having hardware security enforcement for static virtual address mappings, to implement an efficient embedded multi-level security system. Shared caches are either disabled or constrained by the same static virtual address mappings using the hardware security enforcement available, to isolate domains accessible to select cores and reduce security risks from data co-mingling.