source: trunk/packages/xen-3.1/xen-3.1/linux-2.6-xen-sparse/drivers/firmware/Kconfig @ 34

#
# 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"
        depends on !IA64
        depends on !XEN
        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>

config DELL_RBU
        tristate "BIOS update support for DELL systems via sysfs"
        depends on X86
        select FW_LOADER
        help
         Say m if you want to have the option of updating the BIOS for your
         DELL system. Note you need a Dell OpenManage or Dell Update package (DUP)
         supporting application to comunicate with the BIOS regarding the new
         image for the image update to take effect.
         See <file:Documentation/dell_rbu.txt> for more details on the driver.

config DCDBAS
        tristate "Dell Systems Management Base Driver"
        depends on X86
        help
          The Dell Systems Management Base Driver provides a sysfs interface
          for systems management software to perform System Management
          Interrupts (SMIs) and Host Control Actions (system power cycle or
          power off after OS shutdown) on certain Dell systems.

          See <file:Documentation/dcdbas.txt> for more details on the driver
          and the Dell systems on which Dell systems management software makes
          use of this driver.

          Say Y or M here to enable the driver for use by Dell systems
          management software such as Dell OpenManage.

endmenu