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b287a25a71
Allow specifying reboot_mode for panic only. This is needed on systems where ramoops is used to store panic logs, and user wants to use warm reset to preserve those, while still having cold reset on normal reboots. Link: http://lkml.kernel.org/r/20190322004735.27702-1-aaro.koskinen@iki.fi Signed-off-by: Aaro Koskinen <aaro.koskinen@nokia.com> Reviewed-by: Kees Cook <keescook@chromium.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
90 lines
2.1 KiB
C
90 lines
2.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _LINUX_REBOOT_H
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#define _LINUX_REBOOT_H
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#include <linux/notifier.h>
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#include <uapi/linux/reboot.h>
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struct device;
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#define SYS_DOWN 0x0001 /* Notify of system down */
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#define SYS_RESTART SYS_DOWN
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#define SYS_HALT 0x0002 /* Notify of system halt */
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#define SYS_POWER_OFF 0x0003 /* Notify of system power off */
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enum reboot_mode {
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REBOOT_UNDEFINED = -1,
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REBOOT_COLD = 0,
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REBOOT_WARM,
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REBOOT_HARD,
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REBOOT_SOFT,
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REBOOT_GPIO,
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};
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extern enum reboot_mode reboot_mode;
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extern enum reboot_mode panic_reboot_mode;
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enum reboot_type {
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BOOT_TRIPLE = 't',
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BOOT_KBD = 'k',
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BOOT_BIOS = 'b',
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BOOT_ACPI = 'a',
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BOOT_EFI = 'e',
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BOOT_CF9_FORCE = 'p',
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BOOT_CF9_SAFE = 'q',
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};
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extern enum reboot_type reboot_type;
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extern int reboot_default;
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extern int reboot_cpu;
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extern int reboot_force;
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extern int register_reboot_notifier(struct notifier_block *);
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extern int unregister_reboot_notifier(struct notifier_block *);
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extern int devm_register_reboot_notifier(struct device *, struct notifier_block *);
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extern int register_restart_handler(struct notifier_block *);
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extern int unregister_restart_handler(struct notifier_block *);
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extern void do_kernel_restart(char *cmd);
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/*
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* Architecture-specific implementations of sys_reboot commands.
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*/
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extern void migrate_to_reboot_cpu(void);
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extern void machine_restart(char *cmd);
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extern void machine_halt(void);
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extern void machine_power_off(void);
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extern void machine_shutdown(void);
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struct pt_regs;
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extern void machine_crash_shutdown(struct pt_regs *);
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/*
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* Architecture independent implemenations of sys_reboot commands.
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*/
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extern void kernel_restart_prepare(char *cmd);
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extern void kernel_restart(char *cmd);
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extern void kernel_halt(void);
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extern void kernel_power_off(void);
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extern int C_A_D; /* for sysctl */
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void ctrl_alt_del(void);
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#define POWEROFF_CMD_PATH_LEN 256
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extern char poweroff_cmd[POWEROFF_CMD_PATH_LEN];
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extern void orderly_poweroff(bool force);
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extern void orderly_reboot(void);
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/*
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* Emergency restart, callable from an interrupt handler.
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*/
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extern void emergency_restart(void);
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#include <asm/emergency-restart.h>
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#endif /* _LINUX_REBOOT_H */
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