Initializing core 0 on a modern system requires a Pentium CPU preconfiguring Minix to bootstrap the CPU. Training RAM is a whole new challenge. The simplistic designs of the 20th century don't apply anymore. Having USB to control boot is a necessity now and with Thunderbolt offering DMA access, configuring trust at a low level has also become a requirement.
There are plenty of things I don't like about UEFI. Going for pseudo-Windows APIs, for instance, or using FAT as a filesystem while better open-source filesystems are available.
I do applaud the efforts of people like the Coreboot team, trying to take control back for their devices, but the cut-down minimal boot manager they provide has yet to convince me to even try switching, to be honest.
There are plenty of things I don't like about UEFI. Going for pseudo-Windows APIs, for instance, or using FAT as a filesystem while better open-source filesystems are available.
I do applaud the efforts of people like the Coreboot team, trying to take control back for their devices, but the cut-down minimal boot manager they provide has yet to convince me to even try switching, to be honest.