aboutsummaryrefslogtreecommitdiffstats
path: root/include/asm-arm/kexec.h
diff options
context:
space:
mode:
authorRichard Purdie <rpurdie@rpsys.net>2008-01-01 18:56:46 -0500
committerRussell King <rmk+kernel@arm.linux.org.uk>2008-02-04 08:21:03 -0500
commit4cd9d6f774c7e0578bbc4409d4490d8f2097d40a (patch)
treec910cfc0def573a681fe8c75e1e35abd93496151 /include/asm-arm/kexec.h
parentae9458d6a0956aa21cb49e1251e35a8d4dacbe6e (diff)
[ARM] 4736/1: Export atags to userspace and allow kexec to use customised atags
Currently, the atags used by kexec are fixed to the ones originally used to boot the kernel. This is less than ideal as changing the commandline, initrd and other options would be a useful feature. This patch exports the atags used for the current kernel to userspace through an "atags" file in procfs. The presence of the file is controlled by its own Kconfig option and cleans up several ifdef blocks into a separate file. The tags for the new kernel are assumed to be at a fixed location before the kernel image itself. The location of the tags used to boot the original kernel is unimportant and no longer saved. Based on a patch from Uli Luckas <u.luckas@road.de> Signed-off-by: Richard Purdie <rpurdie@rpsys.net> Acked-by: Uli Luckas <u.luckas@road.de> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'include/asm-arm/kexec.h')
-rw-r--r--include/asm-arm/kexec.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/asm-arm/kexec.h b/include/asm-arm/kexec.h
index 46dcc4d0b9bd..1ee17b6951d0 100644
--- a/include/asm-arm/kexec.h
+++ b/include/asm-arm/kexec.h
@@ -16,6 +16,9 @@
16 16
17#define KEXEC_BOOT_PARAMS_SIZE 1536 17#define KEXEC_BOOT_PARAMS_SIZE 1536
18 18
19#define KEXEC_ARM_ATAGS_OFFSET 0x1000
20#define KEXEC_ARM_ZIMAGE_OFFSET 0x8000
21
19#ifndef __ASSEMBLY__ 22#ifndef __ASSEMBLY__
20 23
21struct kimage; 24struct kimage;