Hi, I forgot to add LTO people and Masahiro to this mail. Let me update the cover mail and resubmit. On Sun, 27 Mar 2022 08:36:53 +0900 Masami Hiramatsu <mhiramat@xxxxxxxxxx> wrote: > Hi, > > Here are the 4th version of the patchset to enable kernel embedded bootconfig > for non-initrd kernel boot environment. I've fixed Makefile to determine > update by checking the contents of embedding bootconfig file. Thanks > Masahiro! > > You can embed a bootconfig file into the kernel as a default bootconfig, > which will be used if there is no initrd or no bootconfig is attached to initrd. > > This needs 2 options: CONFIG_EMBED_BOOT_CONFIG=y and set the file > path to CONFIG_EMBED_BOOT_CONFIG_FILE. Even if you embed the bootconfig file > to the kernel, it will not be enabled unless you pass "bootconfig" kernel > command line option at boot. Moreover, since this is just a "default" > bootconfig, you can override it with a new bootconfig if you attach another > bootconfig to the initrd (if possible). > CONFIG_EMBED_BOOT_CONFIG_FILE can take both absolute and relative path, but > to simplify and make it independent from the build environment, I recommend > you to use an absolute path for that. > > This is requested by Padmanabha at the below thread; > > https://lore.kernel.org/all/20220307184011.GA2570@pswork/T/#u > > Thank you, > > --- > > Masami Hiramatsu (3): > bootconfig: Check the checksum before removing the bootconfig from initrd > bootconfig: Support embedding a bootconfig file in kernel > docs: bootconfig: Add how to embed the bootconfig into kernel > > > Documentation/admin-guide/bootconfig.rst | 30 ++++++++++++++++++++++++++--- > include/linux/bootconfig.h | 10 ++++++++++ > init/Kconfig | 21 ++++++++++++++++++++ > init/main.c | 31 +++++++++++++++--------------- > lib/.gitignore | 1 + > lib/Makefile | 10 ++++++++++ > lib/bootconfig.c | 23 ++++++++++++++++++++++ > 7 files changed, 108 insertions(+), 18 deletions(-) > > -- > Masami Hiramatsu (Linaro) <mhiramat@xxxxxxxxxx> -- Masami Hiramatsu <mhiramat@xxxxxxxxxx>
