Preparing the kernel for UEFI secure boot

Wow, this approach to UEFI would have derailed both my Masters and Ph.D. research work if it was the standard back then. To turn off x86 I/O instructions would have killed our OS-bypass low-latency parallel high speed interconnect research in the 1990's. The removal of kexec() functionality would have limited the functionality of Warewulf, the diskless beowulf cluster management tool I helped develop in the early 2000's. I could go on, but essentially, the list of things being disabled, was much of the things I've used to do HPC research work over the last 18 years!