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 <kern_util.h>
13#include <os.h>
14#include <skas.h>
15
16void (*pm_power_off)(void);
17EXPORT_SYMBOL(pm_power_off);
18
19static void kill_off_processes(void)
20{
21	struct task_struct *p;
22	int pid;
 
 
 
 
 
 
23
24	read_lock(&tasklist_lock);
25	for_each_process(p) {
26		struct task_struct *t;
27
28		t = find_lock_task_mm(p);
29		if (!t)
30			continue;
31		pid = t->mm->context.id.u.pid;
32		task_unlock(t);
33		os_kill_ptraced_process(pid, 1);
34	}
35	read_unlock(&tasklist_lock);
36}
37
38void uml_cleanup(void)
39{
40	kmalloc_ok = 0;
41	do_uml_exitcalls();
42	kill_off_processes();
43}
44
45void machine_restart(char * __unused)
46{
47	uml_cleanup();
48	reboot_skas();
49}
50
51void machine_power_off(void)
52{
53	uml_cleanup();
54	halt_skas();
55}
56
57void machine_halt(void)
58{
59	machine_power_off();
60}

 
 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/slab.h"
 8#include "kern_util.h"
 9#include "os.h"
10#include "skas.h"
 
 
 
 
11
12void (*pm_power_off)(void);
 
13
14static void kill_off_processes(void)
15{
16	if (proc_mm)
17		/*
18		 * FIXME: need to loop over userspace_pids
19		 */
20		os_kill_ptraced_process(userspace_pid[0], 1);
21	else {
22		struct task_struct *p;
23		int pid;
24
25		for_each_process(p) {
26			if (p->mm == NULL)
27				continue;
28
29			pid = p->mm->context.id.u.pid;
30			os_kill_ptraced_process(pid, 1);
31		}
 
 
 
32	}
 
33}
34
35void uml_cleanup(void)
36{
37	kmalloc_ok = 0;
38	do_uml_exitcalls();
39	kill_off_processes();
40}
41
42void machine_restart(char * __unused)
43{
44	uml_cleanup();
45	reboot_skas();
46}
47
48void machine_power_off(void)
49{
50	uml_cleanup();
51	halt_skas();
52}
53
54void machine_halt(void)
55{
56	machine_power_off();
57}