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AMD Turin PSP binaries analysis from open-source firmware perspective
Introduction In the previous post, we showed coreboot running on Gigabyte MZ33-AR1 with Turin CPU, the current, newest family of AMD server processors. However, we faced various obstacles and problems.
Seeing this opportunity, I have reviewed and tested the patches, even added more information to be dumped, and fixed parsing of the images for Turin processors, to serve the purpose of my analysis: When I looked closer at the output of PSPTool from the vendor image, the verification of the PSP FW recovery boot loader passed with the AMD Root Key: So I flashed the freshly produced image with blobs from the Turin PI package, and thankfully, the CPU was released from reset, and I saw debug messages from coreboot’s bootblock!
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