linux-imx

/*

 * kexec.c - kexec system call core code.

 * Copyright (C) 2002-2004 Eric Biederman  <ebiederm@xmission.com>

 *

 * This source code is licensed under the GNU General Public License,

 * Version 2.  See the file COPYING for more details.

 */

​

#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt

​

#include <linux/capability.h>

#include <linux/mm.h>

#include <linux/file.h>

#include <linux/slab.h>

#include <linux/fs.h>

#include <linux/kexec.h>

#include <linux/mutex.h>

#include <linux/list.h>

#include <linux/highmem.h>

#include <linux/syscalls.h>

#include <linux/reboot.h>

#include <linux/ioport.h>

#include <linux/hardirq.h>

#include <linux/elf.h>

#include <linux/elfcore.h>

#include <linux/utsname.h>

#include <linux/numa.h>

#include <linux/suspend.h>

#include <linux/device.h>

#include <linux/freezer.h>

#include <linux/pm.h>

#include <linux/cpu.h>

#include <linux/uaccess.h>

#include <linux/io.h>

#include <linux/console.h>

#include <linux/vmalloc.h>

#include <linux/swap.h>

#include <linux/syscore_ops.h>

#include <linux/compiler.h>

#include <linux/hugetlb.h>

#include <linux/frame.h>

​

#include <asm/page.h>

#include <asm/sections.h>

​

#include <crypto/hash.h>

#include <crypto/sha.h>

#include "kexec_internal.h"

​

DEFINE_MUTEX(kexec_mutex);

​

/* Per cpu memory for storing cpu states in case of system crash. */

note_buf_t __percpu *crash_notes;

​

/* Flag to indicate we are going to kexec a new kernel */

bool kexec_in_progress = false;

​

​

/* Location of the reserved area for the crash kernel */

struct resource crashk_res = {

    .name  = "Crash kernel",

    .start = 0,

    .end   = 0,