Method for Regulating System Management Mode Function Calls and System Therefor

An information handling system comprising:

• a memory including a first partition to store system management mode (SMM) instructions and SMM data;
• and
• a processor to invoke an SMM master function in response to determining that a system management interrupt (SMI) has been initiated, the SMM master function to:
• save state information, the state information including a first value retrieved from a first register and a second value retrieved from a second register;
• determine a first function associated with the SMI based on the first value;
• determine a first calling address associated with the SMI based on the second value;
• increment a first counter corresponding to a unique combination of the first function and the first calling address;
• and
• selectively invoke the first function based on the value of the first counter and based on a first predetermined threshold.

A method performed by a system management mode master function, the method comprising:

• saving state information in response to receiving a system management interrupt (SMI), the state information including a first value retrieved from a first register and a second value retrieved from a second register;
• determining a first function associated with the SMI based on the first value;
• determining a first calling address associated with the SMI based on the second value;
• incrementing a first counter corresponding to a unique combination of the first function and the first calling address;
• and
• selectively invoking the first function based on the value of the first counter and based on a first predetermined threshold.