NAME
efi —
Unified Extensible Firmware
Interface
SYNOPSIS
# amd64
efi* at bios?
# arm64
efi* at fdt?
DESCRIPTION
The efi driver provides support for EFI
runtime services offered by UEFI firmware implementations. It can read and
write the Real Time Clock and provides userland applications
ioctl(2)
access to the System Resource Table and to read and write variables.
FILES
- /dev/efi
SEE ALSO
HISTORY
The efi device driver first appeared for
arm64 in OpenBSD 6.3. Support for amd64, the ESRT
and EFI variables appeared in OpenBSD 7.3.
AUTHORS
The efi driver was written by
Mark Kettenis
<kettenis@openbsd.org>.
Support for the ESRT and EFI variables is heavily based on work done by
Sergii Dmytruk
<sergii.dmytruk@3meb.com>.