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:
May. 31, 2016
Filed:
Dec. 27, 2013
Intel Corporation, Santa Clara, CA (US);
Rebekah Leslie-Hurd, Portland, OR (US);
Ilya Alexandrovich, Haifa, IL;
Ittai Anati, Haifa, IL;
Alex Berenzon, Zikhron Ya'akov, IL;
Michael Goldsmith, Lake Oswego, OR (US);
Simon Johnson, Beaverton, OR (US);
Francis McKeen, Portland, OR (US);
Carlos Rozas, Portland, OR (US);
Uday Savagaonkar, Portland, OR (US);
Vincent Scarlata, Beaverton, OR (US);
Vedvyas Shanbhogue, Austin, TX (US);
Wesley Smith, Raleigh, NC (US);
Intel Corporation, Santa Clara, CA (US);
Abstract
Embodiments of an invention for modifying memory permissions in a secure processing environment are disclosed. In one embodiment, a processor includes an instruction unit and an execution unit. The instruction unit is to receive an instruction to modify access permissions for a page in a secure enclave. The execution unit is to execute the instruction. Execution of the instruction includes setting new access permissions in an enclave page cache map entry. Furthermore, the page is immediately accessible from inside the secure enclave according to the new access permissions.