Simple question or hard, How run AMD PSP 2.0 device (AMD Secure Processor) in Ubuntu 16.04 ?
This is basically AMD's own version of the Intel Management Engine. It has all of the same basic security and freedom issues, although the implementation is wildly different.
Effectively, PSP is an isolated, low-level, proprietary co-processor that cross-checks your BIOS firmware with its own. If the BIOS firmware doesn't contain AMD-PSP firmware, then your computer will not boot.
AMD PSP isn't something that you run- it runs at boot, and while you use your computer. As a matter of fact, it can be quite unsafe- once a cracker gains access to the PSP, he/she can effectively control most, if not all, aspects of your hardware.
You may want to give this a read: https://libreboot.org/faq/#intelme