Method for monitoring a BIOS

Details Method for monitoring a BIOS Method for monitoring a BIOS

1996-09-30

2000-06-27

Hafiz, Tariq R.

Electrical computers and digital processing systems: support

Multiple computer communication using cryptography

Protection at a particular protocol layer

713 2, 714 37, 714 47, G06F 945

Patent

active

060816643

ABSTRACT:
A method for monitoring a basic input/output system, or BIOS, in a computer system involves intercepting a call by a software routine to access a BIOS, invoking the BIOS on behalf of the calling routine, and communicating the result of the call back to the calling routine. Intercepting a BIOS call is accomplished by establishing a false entry point to the BIOS, and providing the address of this false entry point to a calling routine in response to a request for the address of the BIOS. The calling routine will then direct subsequent BIOS service requests to the false entry point, which in turn forwards the service requests to a BIOS monitor for processing. By inserting an intermediary between the calling routine and the BIOS, usage of the BIOS can be readily monitored.

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