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. 10, 2023
Filed:
Oct. 08, 2020
Nxp B.v., Eindhoven, NL;
Jan Hoogerbrugge, Helmond, NL;
Wilhelmus Petrus Adrianus Johannus Michiels, Reusel, NL;
NXP B.V., Eindhoven, NL;
Abstract
A data processing system has a processor, a system memory, and a hypervisor. The system memory stores program code and data in a plurality of memory pages. The hypervisor controls SLAT (second level address translation) read, write, and execute access rights of the plurality of memory pages. A portion of the plurality of memory pages are classified as being in a secure enclave portion of the system memory and a portion is classified as being in an unsecure memory area. The portion of the memory pages classified in the secure enclave is encrypted and a hash is generated for each of the memory pages. During an access of a memory page, the hypervisor determines if the accessed memory page is in the secure enclave or in the unsecure memory area based on the hash. In another embodiment, a method for accessing a memory page in the secure enclave is provided.