METHOD AND APPARATUS FOR OPERATING APPLICATION OF DATA PROCESSOR BASED ON PRIORITY

摘要

The present invention discloses a method and an apparatus for executing applications according to priorities in a data processor. In order to execute the applications by a processor divided into a secure mode area and a non-secure mode area, the method includes the following steps: receiving a request to be processed in the non-secure mode area from the application; determining a priority of the application when an access permission level of a resource used for processing the request is set to allow for access from the secure mode area; and changing the access permission level to allow for access from the non-secure mode area according to the priority of the application, and processing the request of the application using the resource in the non-secure mode area.