diff options
Diffstat (limited to 'arch/i386/kernel/traps.c')
| -rw-r--r-- | arch/i386/kernel/traps.c | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/arch/i386/kernel/traps.c b/arch/i386/kernel/traps.c index 438949da3b63..cfffe3dd9e83 100644 --- a/arch/i386/kernel/traps.c +++ b/arch/i386/kernel/traps.c @@ -775,6 +775,8 @@ static __kprobes void default_do_nmi(struct pt_regs * regs) reassert_nmi(); } +static int ignore_nmis; + fastcall __kprobes void do_nmi(struct pt_regs * regs, long error_code) { int cpu; @@ -785,11 +787,24 @@ fastcall __kprobes void do_nmi(struct pt_regs * regs, long error_code) ++nmi_count(cpu); - default_do_nmi(regs); + if (!ignore_nmis) + default_do_nmi(regs); nmi_exit(); } +void stop_nmi(void) +{ + acpi_nmi_disable(); + ignore_nmis++; +} + +void restart_nmi(void) +{ + ignore_nmis--; + acpi_nmi_enable(); +} + #ifdef CONFIG_KPROBES fastcall void __kprobes do_int3(struct pt_regs *regs, long error_code) { |