Qualcomm Incorporated

Suresh Bollapragada

Samar Asbe

Qazi Bashir

Bollapragada V J Manohar

Paul Richard Ellis

Tero M Kukola

Shital Mehta

Techniques for protecting the contents of a computing device are provided. The techniques include associating security level information with each of a plurality of content items to be protected, the security level information including an integrity check action and a resultant behavior to be performed for each respective content item. The security level information can be built into an image comprising the content items to be protected and the image can be installed on a computing device. The techniques include accessing security level information associated with a content item responsive to a request to perform an action on the content, performing the integrity check action associated with the content item, and performing the resultant behavior associated with the content item responsive to the integrity check action indicating that the action requested cannot be performed.

Selective block-based integrity protection techniques

Disclosed is a method for inheriting a non-secure thread context. In the method, a first secure monitor call associated with a first non-secure thread of a non-secure environment of a processing system is received. A first secure thread is created, in response to the first secure monitor call, that inherits a first interrupt state of the first non-secure thread.

Apparatus and method for inheriting a non-secure thread context

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San Diego, CA, United States of America

Suresh Bollapragada