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 EFI_VARS 30 tristate "EFI Variable Support via sysfs" 31 depends on EFI 32 default n 33 help 34 If you say Y here, you are able to get EFI (Extensible Firmware 35 Interface) variable information via sysfs. You may read, 36 write, create, and destroy EFI variables through this interface. 37 38 Note that using this driver in concert with efibootmgr requires 39 at least test release version 0.5.0-test3 or later, which is 40 available from Matt Domsch's website located at: 41 <http://linux.dell.com/efibootmgr/testing/efibootmgr-0.5.0-test3.tar.gz> 42 43 Subsequent efibootmgr releases may be found at: 44 <http://linux.dell.com/efibootmgr> 45 46config EFI_PCDP 47 bool "Console device selection via EFI PCDP or HCDP table" 48 depends on ACPI && EFI && IA64 49 default y if IA64 50 help 51 If your firmware supplies the PCDP table, and you want to 52 automatically use the primary console device it describes 53 as the Linux console, say Y here. 54 55 If your firmware supplies the HCDP table, and you want to 56 use the first serial port it describes as the Linux console, 57 say Y here. If your EFI ConOut path contains only a UART 58 device, it will become the console automatically. Otherwise, 59 you must specify the "console=hcdp" kernel boot argument. 60 61 Neither the PCDP nor the HCDP affects naming of serial devices, 62 so a serial console may be /dev/ttyS0, /dev/ttyS1, etc, depending 63 on how the driver discovers devices. 64 65 You must also enable the appropriate drivers (serial, VGA, etc.) 66 67 See <http://www.dig64.org/specifications/DIG64_HCDPv20_042804.pdf> 68 69config DELL_RBU 70 tristate "BIOS update support for DELL systems via sysfs" 71 depends on X86 72 select FW_LOADER 73 help 74 Say m if you want to have the option of updating the BIOS for your 75 DELL system. Note you need a Dell OpenManage or Dell Update package (DUP) 76 supporting application to communicate with the BIOS regarding the new 77 image for the image update to take effect. 78 See <file:Documentation/dell_rbu.txt> for more details on the driver. 79 80config DCDBAS 81 tristate "Dell Systems Management Base Driver" 82 depends on X86 83 help 84 The Dell Systems Management Base Driver provides a sysfs interface 85 for systems management software to perform System Management 86 Interrupts (SMIs) and Host Control Actions (system power cycle or 87 power off after OS shutdown) on certain Dell systems. 88 89 See <file:Documentation/dcdbas.txt> for more details on the driver 90 and the Dell systems on which Dell systems management software makes 91 use of this driver. 92 93 Say Y or M here to enable the driver for use by Dell systems 94 management software such as Dell OpenManage. 95 96config DMIID 97 bool "Export DMI identification via sysfs to userspace" 98 depends on DMI 99 default y 100 help 101 Say Y here if you want to query SMBIOS/DMI system identification 102 information from userspace through /sys/class/dmi/id/ or if you want 103 DMI-based module auto-loading. 104 105config ISCSI_IBFT_FIND 106 bool "iSCSI Boot Firmware Table Attributes" 107 depends on X86 108 default n 109 help 110 This option enables the kernel to find the region of memory 111 in which the ISCSI Boot Firmware Table (iBFT) resides. This 112 is necessary for iSCSI Boot Firmware Table Attributes module to work 113 properly. 114 115config ISCSI_IBFT 116 tristate "iSCSI Boot Firmware Table Attributes module" 117 depends on ISCSI_IBFT_FIND 118 default n 119 help 120 This option enables support for detection and exposing of iSCSI 121 Boot Firmware Table (iBFT) via sysfs to userspace. If you wish to 122 detect iSCSI boot parameters dynamically during system boot, say Y. 123 Otherwise, say N. 124 125endmenu 126