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fac58550e8
When a unknown NMI happened the panic would claim a NMI watchdog timeout. Also it would check the variable set by nmi_watchdog=panic and panic then. Fix up the panic message to be generic Unconditionally panic on unknown NMI when panic on unknown nmi is enabled. Noticed by Jan Beulich Cc: jbeulich@novell.com Signed-off-by: Andi Kleen <ak@suse.de>
74 lines
1.8 KiB
C
74 lines
1.8 KiB
C
/*
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* linux/include/asm-i386/nmi.h
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*/
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#ifndef ASM_NMI_H
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#define ASM_NMI_H
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#include <linux/pm.h>
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#include <asm/io.h>
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/**
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* do_nmi_callback
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*
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* Check to see if a callback exists and execute it. Return 1
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* if the handler exists and was handled successfully.
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*/
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int do_nmi_callback(struct pt_regs *regs, int cpu);
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#ifdef CONFIG_PM
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/** Replace the PM callback routine for NMI. */
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struct pm_dev * set_nmi_pm_callback(pm_callback callback);
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/** Unset the PM callback routine back to the default. */
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void unset_nmi_pm_callback(struct pm_dev * dev);
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#else
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static inline struct pm_dev * set_nmi_pm_callback(pm_callback callback)
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{
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return 0;
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}
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static inline void unset_nmi_pm_callback(struct pm_dev * dev)
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{
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}
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#endif /* CONFIG_PM */
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extern void default_do_nmi(struct pt_regs *);
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extern void die_nmi(char *str, struct pt_regs *regs, int do_panic);
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#define get_nmi_reason() inb(0x61)
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extern int panic_on_timeout;
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extern int unknown_nmi_panic;
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extern int nmi_watchdog_enabled;
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extern int check_nmi_watchdog(void);
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extern int avail_to_resrv_perfctr_nmi_bit(unsigned int);
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extern int avail_to_resrv_perfctr_nmi(unsigned int);
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extern int reserve_perfctr_nmi(unsigned int);
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extern void release_perfctr_nmi(unsigned int);
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extern int reserve_evntsel_nmi(unsigned int);
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extern void release_evntsel_nmi(unsigned int);
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extern void setup_apic_nmi_watchdog (void *);
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extern void stop_apic_nmi_watchdog (void *);
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extern void disable_timer_nmi_watchdog(void);
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extern void enable_timer_nmi_watchdog(void);
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extern int nmi_watchdog_tick (struct pt_regs * regs, unsigned reason);
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extern void nmi_watchdog_default(void);
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extern int setup_nmi_watchdog(char *);
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extern atomic_t nmi_active;
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extern unsigned int nmi_watchdog;
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#define NMI_DEFAULT -1
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#define NMI_NONE 0
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#define NMI_IO_APIC 1
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#define NMI_LOCAL_APIC 2
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#define NMI_INVALID 3
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#endif /* ASM_NMI_H */
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