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. 08, 2025
Filed:
Mar. 24, 2022
Applicant:
Intel Corporation, Santa Clara, CA (US);
Inventors:
Jiewen Yao, Shanghai, CN;
Vincent Zimmer, Issaquah, WA (US);
Assignee:
Intel Corporation, Santa Clara, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 21/57 (2013.01); G06F 8/65 (2018.01); G06F 9/445 (2018.01); G06F 9/455 (2018.01); G06F 9/48 (2006.01); G06F 12/14 (2006.01); G06F 13/24 (2006.01); G06F 21/62 (2013.01); G06F 21/56 (2013.01);
U.S. Cl.
CPC ...
G06F 13/24 (2013.01); G06F 8/65 (2013.01); G06F 9/44594 (2013.01); G06F 9/45558 (2013.01); G06F 9/4812 (2013.01); G06F 12/1408 (2013.01); G06F 21/57 (2013.01); G06F 21/62 (2013.01); G06F 21/566 (2013.01); G06F 21/572 (2013.01); G06F 2221/2113 (2013.01);
Abstract
A system management mode (SMM) runtime resiliency manager (SRM) augments computing resource protection policies provided by an SMM policy shim. The SMM shim protects system resources by deprivileging system management interrupt (SMI) handlers to a lower level of privilege (e.g., ring 3 privilege) and by configuring page tables and register bitmaps (e.g., I/O, MSR, and Save State register bitmaps). SRM capabilities include protecting the SMM shim, updating the SMM shim, protecting a computing system during SMM shim update, detecting SMM attacks, and recovering attacked or faulty SMM components.