Methods and apparatus for locking at least a portion of a shared memory resource

An electronic device configured to lock at least a portion of a shared memory, comprising:

• a host processor;
• a peripheral processor;
• a physical bus interface configured to couple the host processor to the peripheral processor;
• and
• a software framework configured to be executed by the host processor and the peripheral processor, the software framework comprising logic configured to:
• attempt to lock the at least the portion of the shared memory;
• verify that the peripheral processor has not locked the at least the portion of the shared memory;
• when the at least the portion of the shared memory is successfully locked via the verification that the peripheral processor has not locked the at least the portion of the shared memory, execute a critical section of the shared memory;
• and
• otherwise attempt to lock the at least the portion of the shared memory at a later time.

A host processing device, comprising:

• a processing unit;
• an execution memory in signal communication with the processing unit;
• and
• a physical bus interface in communication with the processing unit, the physical bus interface configured to be coupled to a communications link;
• wherein the host processing device is further configured to:
• globally lock a shared memory resource by use of a global locking mechanism, the shared memory resource configured to service the host processing device and at least one other processing device;
• lock one or more paging table entries within the shared memory resource by use of a paging table entry locking mechanism;
• and
• update tracking information associated with the one or more paging table entries subsequent to the global lock and subsequent to the one or more paging table entry locks.