From 5234f5eb04abbbfa306ccfbc2ccbb6e73f515b15 Mon Sep 17 00:00:00 2001 From: "Eric W. Biederman" Date: Sat, 25 Jun 2005 14:58:02 -0700 Subject: [PATCH] kexec: x86_64 kexec implementation This is the x86_64 implementation of machine kexec. 32bit compatibility support has been implemented, and machine_kexec has been enhanced to not care about the changing internal kernel paget table structures. From: Alexander Nyberg build fix Signed-off-by: Eric Biederman Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/x86_64/kernel/crash.c | 38 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 38 insertions(+) create mode 100644 arch/x86_64/kernel/crash.c (limited to 'arch/x86_64/kernel/crash.c') diff --git a/arch/x86_64/kernel/crash.c b/arch/x86_64/kernel/crash.c new file mode 100644 index 0000000..7caf8a4 --- /dev/null +++ b/arch/x86_64/kernel/crash.c @@ -0,0 +1,38 @@ +/* + * Architecture specific (x86_64) functions for kexec based crash dumps. + * + * Created by: Hariprasad Nellitheertha (hari@in.ibm.com) + * + * Copyright (C) IBM Corporation, 2004. All rights reserved. + * + */ + +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include + +#define MAX_NOTE_BYTES 1024 +typedef u32 note_buf_t[MAX_NOTE_BYTES/4]; + +note_buf_t crash_notes[NR_CPUS]; + +void machine_crash_shutdown(void) +{ + /* This function is only called after the system + * has paniced or is otherwise in a critical state. + * The minimum amount of code to allow a kexec'd kernel + * to run successfully needs to happen here. + * + * In practice this means shooting down the other cpus in + * an SMP system. + */ +} -- cgit v1.1