INFORMATION PROCESSOR AND PROGRAM EXECUTION CONTROL METHOD

摘要

PROBLEM TO BE SOLVED: To efficiently verify validity of execution of a called program from viewpoints of memory protection or peripheral device protection in switching execution programs as a result of a program call.

SOLUTION: A CPU 10 contained in an information processing apparatus 1 outputs an access request including first access destination address information by a first program, and outputs a check request including second access destination address information when the execution program is switched from the first program to a second program as a result of a program call from the first program to the second program. A protection setting check portion 14 contained in the information processing apparatus 1 checks whether or not the check request including the second access destination address information conforms to protection setting for the first program based on memory protection information that is established in a memory protection information storage portion 110 to detect a violation by a memory access request by the first program.

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