UEFI Issue

[Charlie Burnett]

Hey, I'm looking to get OpenBSD working in UEFI only mode on newer Thinkpad
X1 devices, because for whatever reason it hangs when loading into memory
without CSM enabled, and some of the X1 devices no longer have a CSM
option. Does anyone have a fix, or advice on where I would start looking if
I was going to patch it myself?