1
2
3
4
5
6menu "Firmware Drivers"
7
8config 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
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 EXPERT
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
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 DIG64_HCDPv20_042804.pdf available from
78 <http://www.dig64.org/specifications/>
79
80config DELL_RBU
81 tristate "BIOS update support for DELL systems via sysfs"
82 depends on X86
83 select FW_LOADER
84 help
85 Say m if you want to have the option of updating the BIOS for your
86 DELL system. Note you need a Dell OpenManage or Dell Update package (DUP)
87 supporting application to communicate with the BIOS regarding the new
88 image for the image update to take effect.
89 See <file:Documentation/dell_rbu.txt> for more details on the driver.
90
91config DCDBAS
92 tristate "Dell Systems Management Base Driver"
93 depends on X86
94 help
95 The Dell Systems Management Base Driver provides a sysfs interface
96 for systems management software to perform System Management
97 Interrupts (SMIs) and Host Control Actions (system power cycle or
98 power off after OS shutdown) on certain Dell systems.
99
100 See <file:Documentation/dcdbas.txt> for more details on the driver
101 and the Dell systems on which Dell systems management software makes
102 use of this driver.
103
104 Say Y or M here to enable the driver for use by Dell systems
105 management software such as Dell OpenManage.
106
107config DMIID
108 bool "Export DMI identification via sysfs to userspace"
109 depends on DMI
110 default y
111 help
112 Say Y here if you want to query SMBIOS/DMI system identification
113 information from userspace through /sys/class/dmi/id/ or if you want
114 DMI-based module auto-loading.
115
116config ISCSI_IBFT_FIND
117 bool "iSCSI Boot Firmware Table Attributes"
118 depends on X86
119 default n
120 help
121 This option enables the kernel to find the region of memory
122 in which the ISCSI Boot Firmware Table (iBFT) resides. This
123 is necessary for iSCSI Boot Firmware Table Attributes module to work
124 properly.
125
126config ISCSI_IBFT
127 tristate "iSCSI Boot Firmware Table Attributes module"
128 select ISCSI_BOOT_SYSFS
129 depends on ISCSI_IBFT_FIND && SCSI && SCSI_LOWLEVEL
130 default n
131 help
132 This option enables support for detection and exposing of iSCSI
133 Boot Firmware Table (iBFT) via sysfs to userspace. If you wish to
134 detect iSCSI boot parameters dynamically during system boot, say Y.
135 Otherwise, say N.
136
137endmenu
138
