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authorVivek Goyal <vgoyal@redhat.com>2014-08-09 01:26:09 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2014-08-09 02:57:33 +0400
commitdd5f726076cc7639d9713b334c8c133f77c6757a (patch)
tree6b3e88bdf3e764d97eb88464e31abc097dab44f6 /arch/x86/purgatory
parent27f48d3e633be23656a097baa3be336e04a82d84 (diff)
downloadlinux-dd5f726076cc7639d9713b334c8c133f77c6757a.tar.xz
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/purgatory')
-rw-r--r--arch/x86/purgatory/entry64.S6
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/x86/purgatory/entry64.S b/arch/x86/purgatory/entry64.S
index be3249d7ed2d..d1a4291d3568 100644
--- a/arch/x86/purgatory/entry64.S
+++ b/arch/x86/purgatory/entry64.S
@@ -61,13 +61,13 @@ new_cs_exit:
.balign 4
entry64_regs:
rax: .quad 0x0
-rbx: .quad 0x0
rcx: .quad 0x0
rdx: .quad 0x0
-rsi: .quad 0x0
-rdi: .quad 0x0
+rbx: .quad 0x0
rsp: .quad 0x0
rbp: .quad 0x0
+rsi: .quad 0x0
+rdi: .quad 0x0
r8: .quad 0x0
r9: .quad 0x0
r10: .quad 0x0