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:
Jan. 21, 2025
Filed:
Jun. 30, 2023
Applicant:
Sifive, Inc., San Mateo, CA (US);
Inventor:
Bradley Gene Burgess, Sunset Valley, TX (US);
Assignee:
SiFive, Inc., Santa Clara, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 12/1027 (2016.01); G06F 12/1009 (2016.01);
U.S. Cl.
CPC ...
G06F 12/1027 (2013.01); G06F 12/1009 (2013.01);
Abstract
Described are methods, logic, and circuitry which prevent translation lookaside buffer probing. Reporting a privilege violation fault is delayed for a defined period of time. The defined period of time can be a time frame needed to perform a long page table walk, which can be at least hundreds of clock cycles. A counter or a forced page table walk corresponding to the defined period of time can be used to implement the delay.