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authorMasami Hiramatsu <mhiramat@kernel.org>2020-01-11 01:03:32 +0900
committerSteven Rostedt (VMware) <rostedt@goodmis.org>2020-01-13 13:19:38 -0500
commit76db5a27a827c2c89e5120a3d486472da847863b (patch)
treef5d871e93abc0c02f4a68afd84cca55aca9e9300 /init
parenttracing: Make struct ring_buffer less ambiguous (diff)
downloadlinux-dev-76db5a27a827c2c89e5120a3d486472da847863b.tar.xz
linux-dev-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')
-rw-r--r--init/Kconfig11
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