diff options
| author | Ken'ichi Ohmichi <oomichi@mxs.nes.nec.co.jp> | 2007-08-22 21:13:39 +0900 |
|---|---|---|
| committer | Simon Horman <horms@verge.net.au> | 2007-10-18 14:36:03 +0900 |
| commit | 2e152ffba39a9234dfa984966deba273824e73c1 (patch) | |
| tree | 270b9e12e03b1c9461595e4764c8694d9045d82f /kexec/crashdump.h | |
| parent | 6282f6f4e662ca7c8fa9c53d31f1e1057c3d6192 (diff) | |
Pass vmcoreinfo's address and size
The patch is for kexec-tools-testing-20070330.
(http://www.kernel.org/pub/linux/kernel/people/horms/kexec-tools/)
The kexec command gets the address and size of the vmcoreinfo data from
/sys/kernel/vmcoreinfo, and passes them to the second kernel through
ELF header of /proc/vmcore. When the second kernel is booting, the
kernel gets them from the ELF header and creates vmcoreinfo's PT_NOTE
segment into /proc/vmcore.
Signed-off-by: Dan Aloni <da-x@monatomic.org>
Signed-off-by: Ken'ichi Ohmichi <oomichi@mxs.nes.nec.co.jp>
Signed-off-by: Simon Horman <horms@verge.net.au>
Diffstat (limited to 'kexec/crashdump.h')
| -rw-r--r-- | kexec/crashdump.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/kexec/crashdump.h b/kexec/crashdump.h index e99bdd2..86f39c0 100644 --- a/kexec/crashdump.h +++ b/kexec/crashdump.h @@ -2,6 +2,7 @@ #define CRASHDUMP_H extern int get_crash_notes_per_cpu(int cpu, uint64_t *addr, uint64_t *len); +extern int get_kernel_vmcoreinfo(uint64_t *addr, uint64_t *len); /* Need to find a better way to determine per cpu notes section size. */ #define MAX_NOTE_BYTES 1024 |