[circularfoyers]

Has there actually been any research into the disabling of AMD PSP like there has been surrounding me_cleaner?

All I remember regarding AMD PSP was that one motherboard manufacturer showed the option after an update and the other you had to flash a modified BIOS to expose it.

But besides this discovery by a user, there hadn't been any research or verification that this software option does what it claims.

[Legogris]

I am also an owner of these devices. I am not knowledgeable if this is as trivial for AMD CPUs in general, but I know that specifically for the SoC in the APU, since i build my own image anyway, it's a simple configuration flag there:

https://github.com/pcengines/coreboot/issues/439

[circularfoyers]

That seems to be only for TPM, which isn't usually what people refer to when talking about Intel ME.