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