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:
Jun. 08, 2021
Filed:
Jun. 27, 2019
Intel Corporation, Santa Clara, CA (US);
Krystof C. Zmudzinski, Forest Grove, OR (US);
Simon P. Johnson, Beaverton, OR (US);
Raghunandan Makaram, Northborough, MA (US);
Francis X. McKeen, Portland, OR (US);
Carlos V. Rozas, Portland, OR (US);
Meltem Ozsoy, Portland, OR (US);
Ilya Alexandrovich, Yokneam Illit, IL;
Siddhartha Chhabra, Portland, OR (US);
Intel Corporation, Santa Clara, CA (US);
Abstract
A processor includes a cryptographic engine to control access, using an secure region key identifier (ID), to one or more memory range of memory allocable for flexible conversion to secure pages of architecturally-protected memory regions, and a processor core. The processor core is to, responsive to receipt of a request to access the memory, perform a walk of page tables and extended page tables to translate a linear address of the request to a physical address of the memory. The processor core is further to determine that the physical address corresponds to an secure page within the one or more memory range of the memory, that a first key ID located within the physical address does not match the secure region key ID, and issue a page fault and deny access to the secure page in the memory.