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| author | Vivek Goyal <vgoyal@redhat.com> | 2014-08-08 23:26:09 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-08-09 00:57:33 +0200 |
| commit | dd5f726076cc7639d9713b334c8c133f77c6757a (patch) | |
| tree | 6b3e88bdf3e764d97eb88464e31abc097dab44f6 /arch/x86/include/asm/crash.h | |
| parent | kexec-bzImage64: support for loading bzImage using 64bit entry (diff) | |
| download | linux-dd5f726076cc7639d9713b334c8c133f77c6757a.tar.xz linux-dd5f726076cc7639d9713b334c8c133f77c6757a.zip | |
kexec: support for kexec on panic using new system call
This patch adds support for loading a kexec on panic (kdump) kernel usning
new system call.
It prepares ELF headers for memory areas to be dumped and for saved cpu
registers. Also prepares the memory map for second kernel and limits its
boot to reserved areas only.
Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Eric Biederman <ebiederm@xmission.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Matthew Garrett <mjg59@srcf.ucam.org>
Cc: Greg Kroah-Hartman <greg@kroah.com>
Cc: Dave Young <dyoung@redhat.com>
Cc: WANG Chao <chaowang@redhat.com>
Cc: Baoquan He <bhe@redhat.com>
Cc: Andy Lutomirski <luto@amacapital.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/x86/include/asm/crash.h')
| -rw-r--r-- | arch/x86/include/asm/crash.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/x86/include/asm/crash.h b/arch/x86/include/asm/crash.h new file mode 100644 index 000000000000..f498411f2500 --- /dev/null +++ b/arch/x86/include/asm/crash.h @@ -0,0 +1,9 @@ +#ifndef _ASM_X86_CRASH_H +#define _ASM_X86_CRASH_H + +int crash_load_segments(struct kimage *image); +int crash_copy_backup_region(struct kimage *image); +int crash_setup_memmap_entries(struct kimage *image, + struct boot_params *params); + +#endif /* _ASM_X86_CRASH_H */ |