Dear Kinky,
On 7/30/19 11:18 AM, Kinky Nekoboi wrote: > loading the microcode via Linux Kernel works. > > including it via coreboot causes General Protection Faults. > > See included bootlog. We hit the same issue on our board, and reported it to the Linux kernel developers [1]. Unfortunately, we didn’t have more resources to pursue this further. 1. What is your configuration? How many processors, how much RAM? 2. So, loading it from GNU/Linux (initramfs) as Tom asked, seems to work. I guess it’s the same with the vendor firmware? 3. As Tom tested it on a similar custom AMD board (with supposedly microcode updates updated in the *vendor firmware*, and it worked for him, there might be something wrong with how microcode updates are applied in coreboot. 4. The user *sfs* in #coreb...@irc.freenode.net did not have the problems if I remember correctly. Anyway, somebody with time and motivation would need to debug this. But it’d be great if you could check a few things and maybe chime in the LKML discussion. Kind regards, Paul [1]: https://lkml.org/lkml/2019/1/3/540 "General protection fault in `switch_mm_irqs_off()`"
smime.p7s
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