Documentations for tboot?

Question

Is there any Documentation to understand what tboot does and how tboot works? http://sourceforge.net/projects/tboot/

Answer 1

TBoot is the reference implementation of a Measured Launched Environment in Intel TXT terms. In it's role as a MLE, TBoot can function as a boot loader and launch a whole operating system in this protected environment.

The Trusted Computing concept implemented is named late-launch or Dynamic Root of Trust for Measurement (DRTM).

What it actually does is described in Intel's Trusted Execution Technology: Software Development Guide. TBoot implements functionality of the entities called OS and MLE.