1// SPDX-License-Identifier: GPL-2.0
 2/* 
 3 * Copyright (C) 2000 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
 
 4 */
 5
 6#include <linux/sched/signal.h>
 7#include <linux/sched/task.h>
 8#include <linux/sched/mm.h>
 9#include <linux/spinlock.h>
10#include <linux/slab.h>
11#include <linux/oom.h>
12#include <linux/reboot.h>
13#include <kern_util.h>
14#include <os.h>
15#include <skas.h>
16
17void (*pm_power_off)(void);
18EXPORT_SYMBOL(pm_power_off);
19
20static void kill_off_processes(void)
21{
22	struct task_struct *p;
23	int pid;
24
25	read_lock(&tasklist_lock);
26	for_each_process(p) {
27		struct task_struct *t;
28
29		t = find_lock_task_mm(p);
30		if (!t)
31			continue;
32		pid = t->mm->context.id.pid;
33		task_unlock(t);
34		os_kill_ptraced_process(pid, 1);
35	}
36	read_unlock(&tasklist_lock);
37}
38
39void uml_cleanup(void)
40{
41	kmalloc_ok = 0;
42	do_uml_exitcalls();
43	kill_off_processes();
44}
45
46void machine_restart(char * __unused)
47{
48	uml_cleanup();
49	reboot_skas();
50}
51
52void machine_power_off(void)
53{
54	uml_cleanup();
55	halt_skas();
56}
57
58void machine_halt(void)
59{
60	machine_power_off();
61}
62
63static int sys_power_off_handler(struct sys_off_data *data)
64{
65	machine_power_off();
66	return 0;
67}
68
69static int register_power_off(void)
70{
71	register_sys_off_handler(SYS_OFF_MODE_POWER_OFF,
72				 SYS_OFF_PRIO_DEFAULT,
73				 sys_power_off_handler, NULL);
74	return 0;
75}
76__initcall(register_power_off);

 
 1/* 
 2 * Copyright (C) 2000 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
 3 * Licensed under the GPL
 4 */
 5
 6#include <linux/sched.h>
 
 
 7#include <linux/spinlock.h>
 8#include <linux/slab.h>
 9#include <linux/oom.h>
 
10#include <kern_util.h>
11#include <os.h>
12#include <skas.h>
13
14void (*pm_power_off)(void);
15EXPORT_SYMBOL(pm_power_off);
16
17static void kill_off_processes(void)
18{
19	struct task_struct *p;
20	int pid;
21
22	read_lock(&tasklist_lock);
23	for_each_process(p) {
24		struct task_struct *t;
25
26		t = find_lock_task_mm(p);
27		if (!t)
28			continue;
29		pid = t->mm->context.id.u.pid;
30		task_unlock(t);
31		os_kill_ptraced_process(pid, 1);
32	}
33	read_unlock(&tasklist_lock);
34}
35
36void uml_cleanup(void)
37{
38	kmalloc_ok = 0;
39	do_uml_exitcalls();
40	kill_off_processes();
41}
42
43void machine_restart(char * __unused)
44{
45	uml_cleanup();
46	reboot_skas();
47}
48
49void machine_power_off(void)
50{
51	uml_cleanup();
52	halt_skas();
53}
54
55void machine_halt(void)
56{
57	machine_power_off();
58}