> AMD PSP is little more than an embedded TPM
Again, you've got some reading to do.
> the subsystem is "responsible for creating, monitoring and maintaining the security environment" and "its functions include managing the boot process, initializing various security related mechanisms, and monitoring the system for any type of activity or events and implementing an appropriate response".
Critics worry it can be used as a backdoor and is a security concern.
https://www.wikipedia.org/wiki/AMD_Platform_Security_Process...
Now explain to me how Apple's Secure Enclave does not do this:
> the subsystem is "responsible for creating, monitoring and maintaining the security environment" and "its functions include managing the boot process, initializing various security related mechanisms, and monitoring the system for any type of activity or events and implementing an appropriate response".
It implements TPM or something similar. It is used in the boot process for a secure boot chain. And the last generic point is probably just that it implements the hardware random number generator for the CPU, which Secure Enclave also does (in a different way).
I could worry about Secure Enclave being used as a backdoor and being a security concern, too. Doesn't mean it actually is!