Haynes and Boone, LLP
Boot process security self-check system
A boot process security system includes a processing system including a plurality of registers, and at least one memory system that includes instructions that, when executed by the processing system, cause the processing system to provide a BIOS. During a Driver eXecution Environment (DXE) sub-process that is included in a boot process and that occurs prior to passing control of the boot process to any third-party drivers, the BIOS programs at least one of the plurality of registers in order to configure at least one secure subsystem. The BIOS then verifies, during the boot process, that the at least one secure subsystem has been configured to provide a predetermined configuration, and locks the at least one secure subsystem. The BIOS then confirms that the at least one secure subsystem has been locked prior to passing control of the boot process to any third-party drivers.
Dell Products L.P.
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Juan Francisco Jayanth Wei G. Murali Manohar
Diaz Raghuram Liu Shanmugam