Very interesting thank you. You may already be aware, but when I first saw the replies here mentioning Option ROMs I immediately thought of the thunderstrike EF

Very interesting thank you. You may already be aware, but when I first saw the replies here mentioning Option ROMs I immediately thought of the thunderstrike EFI vulnerabilities for Macbooks. I've yet to actually mess with them, but apparently that was how they worked at least in the first generation, I haven't followed the research much further yet [https://trmm.net/Thunderstrike https://trmm.net/Thunderstrike]. So since option ROMs, for obvious reasons, survived the "transition" to EFI, does this mean the same mechanism could be used in BIOS machines? At least this might also have implications for backporting peripheral drivers too (for whatever reason)...