Hello, Disabling PSP in such a case would be subjective. Ryzen doesn't support c... | Hacker News

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my123 on April 21, 2020 | parent | context | favorite | on: AMD’s Mobile Revival: Redefining the Notebook Busi...

Hello,

Disabling PSP in such a case would be subjective. Ryzen doesn't support cache as RAM anymore, with the PSP doing RAM initialization. The furthest that you'd be able to is getting a minimal PSP firmware that only handles system bringup.

Some OEMs currently propose an option to disable the PSP <-> main processor communication interface during bootup.

sneak on April 21, 2020 [–]

Would that proposed option disable PSP main memory access? It’s access to system memory + access to PCI devices (networking) that most concerns me.

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