This patch enables publishcopying ESRTUEFI tables to user space.
This is usefull for firmware update tools such as fwupd.
ESRT table represent via read-only sysctl variablesEFIIOC_GET_TABLE ioctl was resurrected and reworked.
User can disable ESRT representing via variAdded new userspace tool called efitable.
"efi.esrt.disable=1" in loader.conf.This is useful for firmware update tools such as fwupd.