2 * Architecture specific (x86_64) functions for kexec based crash dumps.
4 * Created by: Hariprasad Nellitheertha (hari@in.ibm.com)
6 * Copyright (C) IBM Corporation, 2004. All rights reserved.
10 #include <linux/init.h>
11 #include <linux/types.h>
12 #include <linux/kernel.h>
13 #include <linux/smp.h>
14 #include <linux/reboot.h>
15 #include <linux/kexec.h>
17 #include <asm/processor.h>
18 #include <asm/hardirq.h>
20 #include <asm/hw_irq.h>
22 note_buf_t crash_notes[NR_CPUS];
24 void machine_crash_shutdown(struct pt_regs *regs)
26 /* This function is only called after the system
27 * has paniced or is otherwise in a critical state.
28 * The minimum amount of code to allow a kexec'd kernel
29 * to run successfully needs to happen here.
31 * In practice this means shooting down the other cpus in