1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef _ASM_X86_REBOOT_H
3#define _ASM_X86_REBOOT_H
4
5#include <linux/kdebug.h>
6
7struct pt_regs;
8
9struct machine_ops {
10 void (*restart)(char *cmd);
11 void (*halt)(void);
12 void (*power_off)(void);
13 void (*shutdown)(void);
14 void (*crash_shutdown)(struct pt_regs *);
15 void (*emergency_restart)(void);
16};
17
18extern struct machine_ops machine_ops;
19extern int crashing_cpu;
20
21void native_machine_crash_shutdown(struct pt_regs *regs);
22void native_machine_shutdown(void);
23void __noreturn machine_real_restart(unsigned int type);
24/* These must match dispatch in arch/x86/realmore/rm/reboot.S */
25#define MRR_BIOS 0
26#define MRR_APM 1
27
28typedef void (cpu_emergency_virt_cb)(void);
29#if IS_ENABLED(CONFIG_KVM_X86)
30void cpu_emergency_register_virt_callback(cpu_emergency_virt_cb *callback);
31void cpu_emergency_unregister_virt_callback(cpu_emergency_virt_cb *callback);
32void cpu_emergency_disable_virtualization(void);
33#else
34static inline void cpu_emergency_register_virt_callback(cpu_emergency_virt_cb *callback) {}
35static inline void cpu_emergency_unregister_virt_callback(cpu_emergency_virt_cb *callback) {}
36static inline void cpu_emergency_disable_virtualization(void) {}
37#endif /* CONFIG_KVM_X86 */
38
39typedef void (*nmi_shootdown_cb)(int, struct pt_regs*);
40void nmi_shootdown_cpus(nmi_shootdown_cb callback);
41void run_crash_ipi_callback(struct pt_regs *regs);
42
43#endif /* _ASM_X86_REBOOT_H */
44