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:
Aug. 04, 2026
Filed:
Dec. 23, 2021
Intel Corporation, Santa Clara, CA (US);
Scott Constable, Portland, OR (US);
Bin Xing, Hillsboro, OR (US);
Yuan Xiao, Columbus, OH (US);
Krystof Zmudzinski, Forest Grove, OR (US);
Mona Vij, Hillsboro, OH (US);
Mark Shanahan, Raleigh, NC (US);
Francis Mckeen, Portland, OR (US);
Ittai Anati, Ramat Hasharon, IL;
Intel Corporation, Santa Clara, CA (US);
Abstract
Systems, methods, and apparatuses relating efficient exception handling in trusted execution environments are described. In an embodiment, a hardware processor includes a register, a decoder, and execution circuitry. The register has a field to be set to enable an architecturally protected execution environment at one of a plurality of contexts for code in an architecturally protected enclave in memory. The decoder is to decode an instruction having a format including a field for an opcode, the opcode to indicate that the execution circuitry is to perform a context change. The execution circuitry is to perform one or more operations corresponding to the instruction, the one or more operations including changing, within the architecturally protected enclave, from a first context to a second context.