drivers/firmware/Kconfig

   1 #
   2 # For a description of the syntax of this configuration file,
   3 # see Documentation/kbuild/kconfig-language.txt.
   4 #
   5
   6 menu "Firmware Drivers"
   7
   8 config EDD
   9         tristate "BIOS Enhanced Disk Drive calls determine boot disk"
  10         depends on X86
  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
  20 config 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
  29 config FIRMWARE_MEMMAP
  30     bool "Add firmware-provided memory map to sysfs" if EMBEDDED
  31     default X86
  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
  39 config 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
  56 config 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
  79 config 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
  90 config 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
 106 config 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
 115 config 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
 125 config ISCSI_IBFT
 126         tristate "iSCSI Boot Firmware Table Attributes module"
 127         select ISCSI_BOOT_SYSFS
 128         depends on ISCSI_IBFT_FIND && SCSI
 129         default n
 130         help
 131           This option enables support for detection and exposing of iSCSI
 132           Boot Firmware Table (iBFT) via sysfs to userspace. If you wish to
 133           detect iSCSI boot parameters dynamically during system boot, say Y.
 134           Otherwise, say N.
 135
 136 endmenu