Direct memory access for compliance checking

Details Direct memory access for compliance checking Direct memory access for compliance checking

2011-06-28

2011-06-28

Moazzami, Nasser (Department: 2436)

Electrical computers and digital processing systems: support

Multiple computer communication using cryptography

Security kernel or utility

C713S165000, C713S166000, C713S167000

Reexamination Certificate

active

07971056

ABSTRACT:
A computer is configured for either full operation with metering or limited mode operation. When in limited mode operation, the system memory may be partitioned into active and restricted memory. The active memory may be limited to an amount needed to execute a limited mode operation application. The remaining restricted memory may be made inaccessible to the computer's processor. To verify the restricted memory remains unused, it may be filled with a pattern and the pattern periodically verified to determine that unauthorized programs are not using the restricted memory.

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