# # 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 X86 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 EDD_OFF bool "Sets default behavior for EDD detection to off" depends on EDD default n help Say Y if you want EDD disabled by default, even though it is compiled into the kernel. Say N if you want EDD enabled by default. EDD can be dynamically set using the kernel parameter 'edd={on|skipmbr|off}'. config FIRMWARE_MEMMAP bool "Add firmware-provided memory map to sysfs" if EMBEDDED default X86 help Add the firmware-provided (unmodified) memory map to /sys/firmware/memmap. That memory map is used for example by kexec to set up parameter area for the next kernel, but can also be used for debugging purposes. See also Documentation/ABI/testing/sysfs-firmware-memmap. 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: Subsequent efibootmgr releases may be found at: 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 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 communicate with the BIOS regarding the new image for the image update to take effect. See 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 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. config DMIID bool "Export DMI identification via sysfs to userspace" depends on DMI default y help Say Y here if you want to query SMBIOS/DMI system identification information from userspace through /sys/class/dmi/id/ or if you want DMI-based module auto-loading. config ISCSI_IBFT_FIND bool "iSCSI Boot Firmware Table Attributes" depends on X86 default n help This option enables the kernel to find the region of memory in which the ISCSI Boot Firmware Table (iBFT) resides. This is necessary for iSCSI Boot Firmware Table Attributes module to work properly. config ISCSI_BOOT_SYSFS tristate "iSCSI Boot Sysfs Interface" default n help This option enables support for exposing iSCSI boot information via sysfs to userspace. If you wish to export this information, say Y. Otherwise, say N. config ISCSI_IBFT tristate "iSCSI Boot Firmware Table Attributes module" select ISCSI_BOOT_SYSFS depends on ISCSI_IBFT_FIND default n help This option enables support for detection and exposing of iSCSI Boot Firmware Table (iBFT) via sysfs to userspace. If you wish to detect iSCSI boot parameters dynamically during system boot, say Y. Otherwise, say N. endmenu