From 407984f1af259b31957c7c05075a454a751bb801 Mon Sep 17 00:00:00 2001 From: Don Zickus Date: Tue, 26 Sep 2006 10:52:27 +0200 Subject: [PATCH] x86: Add abilty to enable/disable nmi watchdog with sysctl Adds a new /proc/sys/kernel/nmi call that will enable/disable the nmi watchdog. Signed-off-by: Don Zickus Signed-off-by: Andi Kleen --- include/asm-i386/nmi.h | 1 + include/asm-x86_64/nmi.h | 1 + include/linux/sysctl.h | 1 + 3 files changed, 3 insertions(+) (limited to 'include') diff --git a/include/asm-i386/nmi.h b/include/asm-i386/nmi.h index 34d6bf0..13b5d83 100644 --- a/include/asm-i386/nmi.h +++ b/include/asm-i386/nmi.h @@ -14,6 +14,7 @@ */ int do_nmi_callback(struct pt_regs *regs, int cpu); +extern int nmi_watchdog_enabled; extern int avail_to_resrv_perfctr_nmi_bit(unsigned int); extern int avail_to_resrv_perfctr_nmi(unsigned int); extern int reserve_perfctr_nmi(unsigned int); diff --git a/include/asm-x86_64/nmi.h b/include/asm-x86_64/nmi.h index 8818c39..2c23b0d 100644 --- a/include/asm-x86_64/nmi.h +++ b/include/asm-x86_64/nmi.h @@ -43,6 +43,7 @@ extern void die_nmi(char *str, struct pt_regs *regs); extern int panic_on_timeout; extern int unknown_nmi_panic; +extern int nmi_watchdog_enabled; extern int check_nmi_watchdog(void); extern int avail_to_resrv_perfctr_nmi_bit(unsigned int); diff --git a/include/linux/sysctl.h b/include/linux/sysctl.h index 736ed91..ecb79ba 100644 --- a/include/linux/sysctl.h +++ b/include/linux/sysctl.h @@ -150,6 +150,7 @@ enum KERN_IA64_UNALIGNED=72, /* int: ia64 unaligned userland trap enable */ KERN_COMPAT_LOG=73, /* int: print compat layer messages */ KERN_MAX_LOCK_DEPTH=74, + KERN_NMI_WATCHDOG=75, /* int: enable/disable nmi watchdog */ }; -- cgit v1.1