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:
Dec. 06, 2022
Filed:
Jan. 09, 2020
Trustonic Limited, Cambridge, GB;
Olivier Deprez, Valbonne, FR;
Lukas Hänel, Valbonne, FR;
Trustonic Limited, Cambridge, GB;
Abstract
A trusted execution environment migration method for a device comprising a multicore processor, the processor operable to execute a rich execution environment (REE) and a trusted execution environment (TEE), the method comprising: executing a TEE scheduler in the REE on a first core of the multicore processor; subsequent to a migration of the TEE scheduler from the first core to a second core, issuing a request, by the TEE scheduler and to a transition submodule in the TEE, to execute an operations submodule in the TEE, wherein the transition submodule is operable to manage the transition of a core of the processor between execution of the REE and execution of the operations submodule in the TEE, and wherein the transition submodule is executed on the same core as the TEE scheduler; upon execution of the operations submodule, determining if the core on which the operations submodule is executing has changed since the previous execution of the operations submodule.