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. 15, 2026
Filed:
Sep. 30, 2024
Advanced Micro Devices, Inc, Santa Clara, CA (US);
Ati Technologies Ulc, Markham, CA;
Seyed Ehsan Koohestani, Woodbridge, CA;
Fabrizio Damato, Folsom, CA (US);
John Paul Traver, Fillmore, CA (US);
Louis Albert Ferraro, Forest Lake, MN (US);
Jonathan Luke Mahowald, Folsom, CA (US);
Piotr Michal Kwidzinski, Folsom, CA (US);
Advanced Micro Devices, Inc, Santa Clara, CA (US);
ATI Technologies ULC, Markham, CA;
Abstract
Mutable firmware commonality for hardware root of trust is described. In at least one aspect, a system includes a volatile memory circuit having a first region that persistently stores a reusable portion of instructions executed during a boot sequence for establishing a hardware root of trust among multiple security layers of a security framework, and a second region that is overwritten during the boot sequence with each layer-specific portion of the instructions executed sequentially to implement a corresponding security layer based on the reusable portion. The system further includes a processing circuit that sequentially establish the hardware root of trust one security layer at a time by loading the second region of the volatile memory with a current layer-specific portion of the instructions that are executed in combination with the reusable portion of the instructions to implement a current security layer.