linux-hardened/usr
Daniel Thompson cff75e0b6f initramfs: provide a way to ignore image provided by bootloader
Many "embedded" architectures provide CMDLINE_FORCE to allow the kernel
to override the command line provided by an inflexible bootloader.
However there is currrently no way for the kernel to override the
initramfs image provided by the bootloader meaning there are still ways
for bootloaders to make things difficult for us.

Fix this by introducing INITRAMFS_FORCE which can prevent the kernel
from loading the bootloader supplied image.

We use CMDLINE_FORCE (and its friend CMDLINE_EXTEND) to imply that the
system has an inflexible bootloader.  This allow us to avoid presenting
this config option to users of systems where inflexible bootloaders
aren't usually a problem.

Link: http://lkml.kernel.org/r/20170217121940.30126-1-daniel.thompson@linaro.org
Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-05-08 17:15:12 -07:00
..
.gitignore gitignore usr/initramfs_data.cpio.bz2 and usr/initramfs_data.cpio.lzma 2009-09-20 12:27:42 +02:00
gen_init_cpio.c gen_init_cpio: avoid NULL pointer dereference and rework env expanding 2013-11-13 12:09:12 +09:00
initramfs_data.S initramfs: Really fix build break on symbol-prefixed archs 2010-12-01 13:13:21 +01:00
Kconfig initramfs: provide a way to ignore image provided by bootloader 2017-05-08 17:15:12 -07:00
Makefile kbuild: initramfs cleanup, set target from Kconfig 2017-01-05 09:40:16 -08:00