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authorTim Gardner <tim.gardner@canonical.com>2008-04-29 01:02:45 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-04-29 08:06:23 -0700
commit8c4dd6068221cd1d0d90490ace80eb4344914a8c (patch)
tree6aa1fed5d22bd315459a783616c94408c8526c89 /drivers/firmware/Kconfig
parentd7321cd62470b70d2717dae5a963e7a8fabff4d5 (diff)
downloadvexpress-lsk-8c4dd6068221cd1d0d90490ace80eb4344914a8c.tar.gz
edd: add default mode CONFIG_EDD_OFF=n, override with edd={on,off}
Add a kernel parameter option to 'edd' to enable/disable BIOS Enhanced Disk Drive Services. CONFIG_EDD_OFF disables EDD while still compiling EDD into the kernel. Default behavior can be forced using 'edd=on' or 'edd=off' as a kernel parameter. [akpm@linux-foundation.org: fix kernel-parameters.txt] Signed-off-by: Tim Gardner <tim.gardner@canonical.com> Signed-off-by: Matt Domsch <Matt_Domsch@dell.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: "Randy.Dunlap" <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/firmware/Kconfig')
-rw-r--r--drivers/firmware/Kconfig9
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/firmware/Kconfig b/drivers/firmware/Kconfig
index 40ffd767647..dc2cec6127d 100644
--- a/drivers/firmware/Kconfig
+++ b/drivers/firmware/Kconfig
@@ -17,6 +17,15 @@ config EDD
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 EFI_VARS
tristate "EFI Variable Support via sysfs"
depends on EFI