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:
Jul. 01, 2025
Filed:
Feb. 28, 2023
Sifive, Inc., San Mateo, CA (US);
Krste Asanovic, Oakland, CA (US);
SiFive, Inc., Santa Clara, CA (US);
Abstract
Systems and methods are disclosed for address range encoding in a system on a chip with a securely partitioned memory space. For example, methods may include receiving, via a bus from a processor core, a memory request for a memory mapped resource; comparing an address included in the memory request to an address range, determined based on an address field and an address range configuration field, for a resource; comparing a first hardware security identifier from the memory request to a hardware security list associated with the resource when the address of the memory request is within the address range for the resource; and, based on the comparison of the first hardware security identifier with the hardware security list, determining whether to allow or reject access to the resource for the memory request.