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.

Date of Patent:
Nov. 14, 2023

Filed:

Jun. 11, 2018
Applicant:

Arm Limited, Cambridge, GB;

Inventors:

Gareth Rhys Stockwell, Cambridge, GB;

Jason Parker, Sheffield, GB;

Djordje Kovacevic, Hitchin, GB;

Matthew Lucien Evans, Cambridge, GB;

Assignee:

Arm Limited, Cambridge, GB;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 21/60 (2013.01); G06F 9/455 (2018.01); G06F 9/48 (2006.01); G06F 12/14 (2006.01); G06F 21/79 (2013.01);
U.S. Cl.
CPC ...
G06F 21/602 (2013.01); G06F 9/45558 (2013.01); G06F 9/4812 (2013.01); G06F 12/1491 (2013.01); G06F 21/79 (2013.01); G06F 2009/45583 (2013.01); G06F 2009/45587 (2013.01); G06F 2212/1052 (2013.01);
Abstract

An apparatus for processing data comprises memory access circuitry to enforce ownership rights of a plurality of memory regions within a first memory. The memory access circuitry is responsive to a first export command received from a first export command source to perform a first export operation to encrypt the given owned data to form given encrypted data and to store the given encrypted data in a second memory. The memory access circuitry is responsive to a second export command for the given memory region received from a second export command source while the first export operation is being performed to determine whether said second export command source has higher priority than the first export command source and, when the second export command source has a higher priority, to interrupt the first export operation and to perform a second export operation specified by the second export command.


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