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:
Oct. 06, 2026
Filed:
May. 27, 2022
Sifive, Inc., San Mateo, CA (US);
Alex Solomatnikov, San Carlos, CA (US);
Krste Asanovic, Oakland, CA (US);
Yann Loisel, La Ciotat, FR;
Cyril Bresch, Marseilles, FR;
SiFive, Inc., Santa Clara, CA (US);
Abstract
Systems and methods are disclosed for secure control flow prediction. Some implementations may be used to eliminate or mitigate the Spectre-class of attacks in a processor. For example, an integrated circuit (e.g., a processor) for executing instructions may include a control flow predictor with entries that include branch target addresses associated with instructions. The branch target addresses may be predictions. A context tag associated with an entry may be compared to a context identifier associated with a currently executing process. Responsive to a mismatch between the context tag and the context identifier, the control flow predictor may provide an alternate value in place of a branch target address.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile