arch/x86/include/asm/reboot.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_REBOOT_H
#define _ASM_X86_REBOOT_H

#include <linux/kdebug.h>

struct pt_regs;

struct machine_ops {
	void (*restart)(char *cmd);
	void (*halt)(void);
	void (*power_off)(void);
	void (*shutdown)(void);
	void (*crash_shutdown)(struct pt_regs *);
	void (*emergency_restart)(void);
};

extern struct machine_ops machine_ops;
extern int crashing_cpu;

void native_machine_crash_shutdown(struct pt_regs *regs);
void native_machine_shutdown(void);
void __noreturn machine_real_restart(unsigned int type);
/* These must match dispatch in arch/x86/realmore/rm/reboot.S */
#define MRR_BIOS	0
#define MRR_APM		1

typedef void (cpu_emergency_virt_cb)(void);
#if IS_ENABLED(CONFIG_KVM_X86)
void cpu_emergency_register_virt_callback(cpu_emergency_virt_cb *callback);
void cpu_emergency_unregister_virt_callback(cpu_emergency_virt_cb *callback);
void cpu_emergency_disable_virtualization(void);
#else
static inline void cpu_emergency_register_virt_callback(cpu_emergency_virt_cb *callback) {}
static inline void cpu_emergency_unregister_virt_callback(cpu_emergency_virt_cb *callback) {}
static inline void cpu_emergency_disable_virtualization(void) {}
#endif /* CONFIG_KVM_X86 */

typedef void (*nmi_shootdown_cb)(int, struct pt_regs*);
void nmi_shootdown_cpus(nmi_shootdown_cb callback);
void run_crash_ipi_callback(struct pt_regs *regs);

#endif /* _ASM_X86_REBOOT_H */