LXR linux/drivers/firmware/Kconfig

   1#
   2# For a description of the syntax of this configuration file,
   3# see Documentation/kbuild/kconfig-language.txt.
   4#
   5
   6menu "Firmware Drivers"
   7
   8config EDD
   9        tristate "BIOS Enhanced Disk Drive calls determine boot disk"
  10        depends on !IA64
  11        help
  12          Say Y or M here if you want to enable BIOS Enhanced Disk Drive
  13          Services real mode BIOS calls to determine which disk
  14          BIOS tries boot from.  This information is then exported via sysfs.
  15
  16          This option is experimental and is known to fail to boot on some
  17          obscure configurations. Most disk controller BIOS vendors do
  18          not yet implement this feature.
  19
  20config EDD_OFF
  21        bool "Sets default behavior for EDD detection to off"
  22        depends on EDD
  23        default n
  24        help
  25          Say Y if you want EDD disabled by default, even though it is compiled into the
  26          kernel. Say N if you want EDD enabled by default. EDD can be dynamically set
  27          using the kernel parameter 'edd={on|skipmbr|off}'.
  28
  29config FIRMWARE_MEMMAP
  30    bool "Add firmware-provided memory map to sysfs" if EMBEDDED
  31    default (X86_64 || X86_32)
  32    help
  33      Add the firmware-provided (unmodified) memory map to /sys/firmware/memmap.
  34      That memory map is used for example by kexec to set up parameter area
  35      for the next kernel, but can also be used for debugging purposes.
  36
  37      See also Documentation/ABI/testing/sysfs-firmware-memmap.
  38
  39config EFI_VARS
  40        tristate "EFI Variable Support via sysfs"
  41        depends on EFI
  42        default n
  43        help
  44          If you say Y here, you are able to get EFI (Extensible Firmware
  45          Interface) variable information via sysfs.  You may read,
  46          write, create, and destroy EFI variables through this interface.
  47
  48          Note that using this driver in concert with efibootmgr requires
  49          at least test release version 0.5.0-test3 or later, which is
  50          available from Matt Domsch's website located at:
  51          <http://linux.dell.com/efibootmgr/testing/efibootmgr-0.5.0-test3.tar.gz>
  52
  53          Subsequent efibootmgr releases may be found at:
  54          <http://linux.dell.com/efibootmgr>
  55
  56config EFI_PCDP
  57        bool "Console device selection via EFI PCDP or HCDP table"
  58        depends on ACPI && EFI && IA64
  59        default y if IA64
  60        help
  61          If your firmware supplies the PCDP table, and you want to
  62          automatically use the primary console device it describes
  63          as the Linux console, say Y here.
  64
  65          If your firmware supplies the HCDP table, and you want to
  66          use the first serial port it describes as the Linux console,
  67          say Y here.  If your EFI ConOut path contains only a UART
  68          device, it will become the console automatically.  Otherwise,
  69          you must specify the "console=hcdp" kernel boot argument.
  70
  71          Neither the PCDP nor the HCDP affects naming of serial devices,
  72          so a serial console may be /dev/ttyS0, /dev/ttyS1, etc, depending
  73          on how the driver discovers devices.
  74
  75          You must also enable the appropriate drivers (serial, VGA, etc.)
  76
  77          See <http://www.dig64.org/specifications/DIG64_HCDPv20_042804.pdf>
  78
  79config DELL_RBU
  80        tristate "BIOS update support for DELL systems via sysfs"
  81        depends on X86
  82        select FW_LOADER
  83        help
  84         Say m if you want to have the option of updating the BIOS for your
  85         DELL system. Note you need a Dell OpenManage or Dell Update package (DUP)
  86         supporting application to communicate with the BIOS regarding the new
  87         image for the image update to take effect.
  88         See <file:Documentation/dell_rbu.txt> for more details on the driver.
  89
  90config DCDBAS
  91        tristate "Dell Systems Management Base Driver"
  92        depends on X86
  93        help
  94          The Dell Systems Management Base Driver provides a sysfs interface
  95          for systems management software to perform System Management
  96          Interrupts (SMIs) and Host Control Actions (system power cycle or
  97          power off after OS shutdown) on certain Dell systems.
  98
  99          See <file:Documentation/dcdbas.txt> for more details on the driver
 100          and the Dell systems on which Dell systems management software makes
 101          use of this driver.
 102
 103          Say Y or M here to enable the driver for use by Dell systems
 104          management software such as Dell OpenManage.
 105
 106config DMIID
 107    bool "Export DMI identification via sysfs to userspace"
 108    depends on DMI
 109    default y
 110        help
 111          Say Y here if you want to query SMBIOS/DMI system identification
 112          information from userspace through /sys/class/dmi/id/ or if you want
 113          DMI-based module auto-loading.
 114
 115config ISCSI_IBFT_FIND
 116        bool "iSCSI Boot Firmware Table Attributes"
 117        depends on X86
 118        default n
 119        help
 120          This option enables the kernel to find the region of memory
 121          in which the ISCSI Boot Firmware Table (iBFT) resides. This
 122          is necessary for iSCSI Boot Firmware Table Attributes module to work
 123          properly.
 124
 125config ISCSI_IBFT
 126        tristate "iSCSI Boot Firmware Table Attributes module"
 127        depends on ISCSI_IBFT_FIND
 128        default n
 129        help
 130          This option enables support for detection and exposing of iSCSI
 131          Boot Firmware Table (iBFT) via sysfs to userspace. If you wish to
 132          detect iSCSI boot parameters dynamically during system boot, say Y.
 133          Otherwise, say N.
 134
 135endmenu
 136