diff options
| author | Masami Hiramatsu <mhiramat@kernel.org> | 2020-01-11 01:03:32 +0900 |
|---|---|---|
| committer | Steven Rostedt (VMware) <rostedt@goodmis.org> | 2020-01-13 13:19:38 -0500 |
| commit | 76db5a27a827c2c89e5120a3d486472da847863b (patch) | |
| tree | f5d871e93abc0c02f4a68afd84cca55aca9e9300 /init/Kconfig | |
| parent | 13292494379f92f532de71b31a54018336adc589 (diff) | |
| download | lwn-76db5a27a827c2c89e5120a3d486472da847863b.tar.gz lwn-76db5a27a827c2c89e5120a3d486472da847863b.zip | |
bootconfig: Add Extra Boot Config support
Extra Boot Config (XBC) allows admin to pass a tree-structured
boot configuration file when boot up the kernel. This extends
the kernel command line in an efficient way.
Boot config will contain some key-value commands, e.g.
key.word = value1
another.key.word = value2
It can fold same keys with braces, also you can write array
data. For example,
key {
word1 {
setting1 = data
setting2
}
word2.array = "val1", "val2"
}
User can access these key-value pair and tree structure via
SKC APIs.
Link: http://lkml.kernel.org/r/157867221257.17873.1775090991929862549.stgit@devnote2
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Diffstat (limited to 'init/Kconfig')
| -rw-r--r-- | init/Kconfig | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/init/Kconfig b/init/Kconfig index a34064a031a5..63450d3bbf12 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -1215,6 +1215,17 @@ source "usr/Kconfig" endif +config BOOT_CONFIG + bool "Boot config support" + select LIBXBC + default y + help + Extra boot config allows system admin to pass a config file as + complemental extension of kernel cmdline when booting. + The boot config file is usually attached at the end of initramfs. + + If unsure, say Y. + choice prompt "Compiler optimization level" default CC_OPTIMIZE_FOR_PERFORMANCE |