Does UEFI start the same way as BIOS (firmware on LPC bus, PC starts at 0xFFFFFFF0)? Or is there a different top level mechanism? My understanding was that the

Does UEFI start the same way as BIOS (firmware on LPC bus, PC starts at 0xFFFFFFF0)? Or is there a different top level mechanism? My understanding was that the CPU still starts in 16 bit real mode (with an evil hack to sign-extend IP) but that by the time UEFI hands off to code on a hard drive it is in long mode.