Related Resources
TCG EFI Protocol Version 1.20, Revision 1.0
The purpose of this document is to define a standard interface to the TPM on an EFI platform. This standard interface is useful on any of the three example instantiations of an EFI platform shown in Figures 2-1, 2-2, and 2-3, as well as other instantiations.
Download here: PC Client Work Group EFI Protocol Specification, Version 1.20