microcode-updates
There are 4 repositories under microcode-updates topic.
RUB-SysSec/Microcode
Microcode Updates for the USENIX 2017 paper: Reverse Engineering x86 Processor Microcode
zpekic/MicroCodeCompiler
https://hackaday.io/project/172073-microcoding-for-fpgas
neumannjan/refind-patched
Patched rEFInd. See what's different in the wiki.
mkorthof/bits
BIOS Implementation Test Suite (MOD)