By finding a bug in the PSP. Heck, bugs like Meltdown and Spectre were found. And exploits on the PSP have already been demonstrated, see here https://github.c

By finding a bug in the PSP. Heck, bugs like Meltdown and Spectre were found. And exploits on the PSP have already been demonstrated, see here https://github.com/PSPReverse/amd-sp-glitch https://github.com/PSPReverse/amd-sp-glitch