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:
Nov. 30, 2021
Filed:
Aug. 23, 2018
Applicant:
Advanced Micro Devices, Inc., Santa Clara, CA (US);
Inventors:
Jeremy W Powell, Austin, TX (US);
David A Kaplan, Austin, TX (US);
Assignee:
Advanced Micro Devices, Inc., Santa Clara, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 17/00 (2019.01); H04L 29/06 (2006.01); G06F 21/53 (2013.01); G06F 21/74 (2013.01); G06F 21/57 (2013.01); G06F 21/60 (2013.01);
U.S. Cl.
CPC ...
G06F 21/53 (2013.01); G06F 21/572 (2013.01); G06F 21/60 (2013.01); G06F 21/74 (2013.01); G06F 2221/2141 (2013.01); G06F 2221/2149 (2013.01);
Abstract
A method includes establishing an isolated execution environment for executing a platform firmware operating mode subroutine in a platform firmware operating mode. In response to receiving an interrupt, the platform firmware operating mode subroutine is executed in the isolated execution environment. In response to detecting an attempted access of a hardware resource resulting from execution of the platform firmware operating mode subroutine, the attempted access is blocked when the attempted access violates a security policy.