Staging
v0.5.1
v0.5.1
https://github.com/torvalds/linux
Tip revision: c32511e2718618f0b53479eb36e07439aa363a74 authored by Linus Torvalds on 13 July 2005, 04:46:46 UTC
Linux 2.6.13-rc3
Linux 2.6.13-rc3
Tip revision: c32511e
Kconfig
#
# For a description of the syntax of this configuration file,
# see Documentation/kbuild/kconfig-language.txt.
#
menu "Firmware Drivers"
config EDD
tristate "BIOS Enhanced Disk Drive calls determine boot disk (EXPERIMENTAL)"
depends on EXPERIMENTAL
depends on !IA64
help
Say Y or M here if you want to enable BIOS Enhanced Disk Drive
Services real mode BIOS calls to determine which disk
BIOS tries boot from. This information is then exported via sysfs.
This option is experimental and is known to fail to boot on some
obscure configurations. Most disk controller BIOS vendors do
not yet implement this feature.
config EFI_VARS
tristate "EFI Variable Support via sysfs"
depends on EFI
default n
help
If you say Y here, you are able to get EFI (Extensible Firmware
Interface) variable information via sysfs. You may read,
write, create, and destroy EFI variables through this interface.
Note that using this driver in concert with efibootmgr requires
at least test release version 0.5.0-test3 or later, which is
available from Matt Domsch's website located at:
<http://linux.dell.com/efibootmgr/testing/efibootmgr-0.5.0-test3.tar.gz>
Subsequent efibootmgr releases may be found at:
<http://linux.dell.com/efibootmgr>
config EFI_PCDP
bool "Console device selection via EFI PCDP or HCDP table"
depends on ACPI && EFI && IA64
default y if IA64
help
If your firmware supplies the PCDP table, and you want to
automatically use the primary console device it describes
as the Linux console, say Y here.
If your firmware supplies the HCDP table, and you want to
use the first serial port it describes as the Linux console,
say Y here. If your EFI ConOut path contains only a UART
device, it will become the console automatically. Otherwise,
you must specify the "console=hcdp" kernel boot argument.
Neither the PCDP nor the HCDP affects naming of serial devices,
so a serial console may be /dev/ttyS0, /dev/ttyS1, etc, depending
on how the driver discovers devices.
You must also enable the appropriate drivers (serial, VGA, etc.)
See <http://www.dig64.org/specifications/DIG64_HCDPv20_042804.pdf>
endmenu