linux/include/asm-x86/emergency-restart.h

#ifndef _ASM_EMERGENCY_RESTART_H
#define _ASM_EMERGENCY_RESTART_H

enum reboot_type {
	BOOT_TRIPLE = 't',
	BOOT_KBD = 'k',
#ifdef CONFIG_X86_32
	BOOT_BIOS = 'b',
#endif
	BOOT_ACPI = 'a',
	BOOT_EFI = 'e'
};

extern enum reboot_type reboot_type;

extern void machine_emergency_restart(void);

#endif /* _ASM_EMERGENCY_RESTART_H */
[PATCH] Add emergency_restart() When the kernel is working well and we want to restart cleanly kernel_restart is the function to use. But in many instances the kernel wants to reboot when thing are expected to be working very badly such as from panic or a software watchdog handler. This patch adds the function emergency_restart() so that callers can be clear what semantics they expect when calling restart. emergency_restart() is expected to be callable from interrupt context and possibly reliable in even more trying circumstances. This is an initial generic implementation for all architectures. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org> 2005-07-26 17:29:55 +00:00			`#ifndef _ASM_EMERGENCY_RESTART_H`
			`#define _ASM_EMERGENCY_RESTART_H`

x86: EFI runtime service support: EFI runtime services This patch adds support for several EFI runtime services for EFI x86_64 system. The EFI support for emergency_restart is added. Signed-off-by: Chandramouli Narayanan <mouli@linux.intel.com> Signed-off-by: Huang Ying <ying.huang@intel.com> Cc: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> 2008-01-30 12:31:19 +00:00			`enum reboot_type {`
			`BOOT_TRIPLE = 't',`
			`BOOT_KBD = 'k',`
x86: reboot_{32\|64}.c unification reboot_{32\|64}.c unification patch. This patch unifies the code from the reboot_32.c and reboot_64.c files. It has been tested in computers with X86_32 and X86_64 kernels and it looks like all reboot modes work fine (EFI restart system hasn't been tested yet). Probably I made some mistakes (like I usually do) so I hope we can identify and fix them soon. Signed-off-by: Miguel Boton <mboton@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> 2008-01-30 12:32:51 +00:00			`#ifdef CONFIG_X86_32`
			`BOOT_BIOS = 'b',`
			`#endif`
x86: EFI runtime service support: EFI runtime services This patch adds support for several EFI runtime services for EFI x86_64 system. The EFI support for emergency_restart is added. Signed-off-by: Chandramouli Narayanan <mouli@linux.intel.com> Signed-off-by: Huang Ying <ying.huang@intel.com> Cc: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> 2008-01-30 12:31:19 +00:00			`BOOT_ACPI = 'a',`
			`BOOT_EFI = 'e'`
			`};`

			`extern enum reboot_type reboot_type;`

[PATCH] i386: Implement machine_emergency_reboot set_cpus_allowed is not safe in interrupt context and disabling apics is complicated code so don't call machine_shutdown on i386 from emergency_restart(). Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org> 2005-07-26 17:41:26 +00:00			`extern void machine_emergency_restart(void);`
[PATCH] Add emergency_restart() When the kernel is working well and we want to restart cleanly kernel_restart is the function to use. But in many instances the kernel wants to reboot when thing are expected to be working very badly such as from panic or a software watchdog handler. This patch adds the function emergency_restart() so that callers can be clear what semantics they expect when calling restart. emergency_restart() is expected to be callable from interrupt context and possibly reliable in even more trying circumstances. This is an initial generic implementation for all architectures. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org> 2005-07-26 17:29:55 +00:00
			`#endif /* _ASM_EMERGENCY_RESTART_H */`