AMD relies on ARM's Trustzone to do this. "The PSP itself represents an ARM core with the TrustZone extension which is inserted into the main CPU die as a copr

AMD relies on ARM's Trustzone to do this. "The PSP itself represents an ARM core with the TrustZone extension which is inserted into the main CPU die as a coprocessor." https://en.wikipedia.org/wiki/AMD_Platform_Security_Processor https://en.wikipedia.org/wiki/AMD_Platform_Security_Processo...