A new AGESA code update for AMD Ryzen processors disables the Processor Security Platform in the UEFI / BIOS.
AMD Ryzen processors based on the Zen architecture have improved over time, and processor and motherboard stock issues and RAM accounting issues are long gone. Time has allowed this platform to achieve a performance improvement and they have also been the cause of Intel launching the Coffee Lake family of processors with six-core processors. Now these processors have received a new AGESA update, which in this case allows the Processor Security Platform to be disabled.
PSP or Processor Security Platform is a system similar to the Intel processor management engine. Such an integrated AMD Secure system has been criticized by some users as an attack vector solution, a closed software code that runs on the system and blocks it, and other problems. This PSP system is based on ARM TrustZone technology.
In light of recent Intel ME security issues, it appears that AMD is allowing the PSP system to be disabled with the new AGESA code, which will be configurable in the UEFI / BIOS zone. This has been reported on Reddit earlier today, which has seen the BIOS PSP Support option in Disabled mode when updating the BIOS. There are many motherboards from different motherboard manufacturers for Ryzen processors have no BIOS updates since September. We don't know which motherboards will get this update, but all motherboards should start receiving BIOS updates shortly to support the new Raven Ridge APUs.
