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:
Apr. 17, 2018
Filed:
Nov. 18, 2014
Applicant:
Wind River Systems, Inc., Alameda, CA (US);
Inventors:
Thierry Preyssler, Alameda, CA (US);
Mati Sauks, Alameda, CA (US);
Assignee:
WIND RIVER SYSTEMS, INC., Alameda, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 9/455 (2018.01); G06F 3/06 (2006.01); G06F 12/10 (2016.01);
U.S. Cl.
CPC ...
G06F 9/455 (2013.01); G06F 3/0604 (2013.01); G06F 3/0631 (2013.01); G06F 3/0664 (2013.01); G06F 3/0673 (2013.01); G06F 12/10 (2013.01);
Abstract
A method including mapping a first portion of a virtual memory containing code of an operating system for access by a processor; receiving a call for an entry point of the operating system; and mapping, after receiving the call, a second portion of the virtual memory containing data for executing entry point code associated with the entry point for access by the processor. The processor executing the operating system code is permitted to access only data from the first and second portions of the virtual memory.