1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2 #ifndef _UAPI_LINUX_REBOOT_H
3 #define _UAPI_LINUX_REBOOT_H
4 
5 /*
6  * Magic values required to use _reboot() system call.
7  */
8 
9 #define	LINUX_REBOOT_MAGIC1	0xfee1dead
10 #define	LINUX_REBOOT_MAGIC2	672274793
11 #define	LINUX_REBOOT_MAGIC2A	85072278
12 #define	LINUX_REBOOT_MAGIC2B	369367448
13 #define	LINUX_REBOOT_MAGIC2C	537993216
14 
15 
16 /*
17  * Commands accepted by the _reboot() system call.
18  *
19  * RESTART     Restart system using default command and mode.
20  * HALT        Stop OS and give system control to ROM monitor, if any.
21  * CAD_ON      Ctrl-Alt-Del sequence causes RESTART command.
22  * CAD_OFF     Ctrl-Alt-Del sequence sends SIGINT to init task.
23  * POWER_OFF   Stop OS and remove all power from system, if possible.
24  * RESTART2    Restart system using given command string.
25  * SW_SUSPEND  Suspend system using software suspend if compiled in.
26  * KEXEC       Restart system using a previously loaded Linux kernel
27  */
28 
29 #define	LINUX_REBOOT_CMD_RESTART	0x01234567
30 #define	LINUX_REBOOT_CMD_HALT		0xCDEF0123
31 #define	LINUX_REBOOT_CMD_CAD_ON		0x89ABCDEF
32 #define	LINUX_REBOOT_CMD_CAD_OFF	0x00000000
33 #define	LINUX_REBOOT_CMD_POWER_OFF	0x4321FEDC
34 #define	LINUX_REBOOT_CMD_RESTART2	0xA1B2C3D4
35 #define	LINUX_REBOOT_CMD_SW_SUSPEND	0xD000FCE2
36 #define	LINUX_REBOOT_CMD_KEXEC		0x45584543
37 
38 
39 
40 #endif /* _UAPI_LINUX_REBOOT_H */
41