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#
# 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 EXPERT
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_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 DIG64_HCDPv20_042804.pdf available from
<http://www.dig64.org/specifications/>
config DELL_RBU
tristate "BIOS update support for DELL systems via sysfs"
depends on X86
select FW_LOADER
select FW_LOADER_USER_HELPER
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 <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.
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 DMI_SYSFS
tristate "DMI table support in sysfs"
depends on SYSFS && DMI
default n
help
Say Y or M here to enable the exporting of the raw DMI table
data via sysfs. This is useful for consuming the data without
requiring any access to /dev/mem at all. Tables are found
under /sys/firmware/dmi when this option is enabled and
loaded.
config DMI_SCAN_MACHINE_NON_EFI_FALLBACK
bool
config ISCSI_IBFT_FIND
bool "iSCSI Boot Firmware Table Attributes"
depends on X86 && ACPI
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_IBFT
tristate "iSCSI Boot Firmware Table Attributes module"
select ISCSI_BOOT_SYSFS
depends on ISCSI_IBFT_FIND && SCSI && SCSI_LOWLEVEL
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.
config QCOM_SCM
bool
depends on ARM || ARM64
source "drivers/firmware/broadcom/Kconfig"
source "drivers/firmware/google/Kconfig"
source "drivers/firmware/efi/Kconfig"
endmenu
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