x86: move do_nmi(), stop_nmi() and restart_nmi() to traps_64.c

traps_32.c already holds these functions so do the same for traps_64.c

Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Cc: hpa@zytor.com
Cc: mingo@redhat.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

1 files changed, 24 insertions, 0 deletions

diff --git a/arch/x86/kernel/traps_64.c b/arch/x86/kernel/traps_64.c
index 6a048ce3c787..e4a380797dc1 100644
--- a/arch/x86/kernel/traps_64.c
+++ b/arch/x86/kernel/traps_64.c
@@ -76,7 +76,9 @@ asmlinkage void alignment_check(void);
 asmlinkage void machine_check(void);
 asmlinkage void spurious_interrupt_bug(void);
 
+int panic_on_unrecovered_nmi;
 static unsigned int code_bytes = 64;
+static unsigned ignore_nmis;
 
 static inline void conditional_sti(struct pt_regs *regs)
 {
@@ -867,6 +869,28 @@ asmlinkage notrace  __kprobes void default_do_nmi(struct pt_regs *regs)
                 io_check_error(reason, regs);
 }
 
+asmlinkage notrace __kprobes void
+do_nmi(struct pt_regs *regs, long error_code)
+{
+        nmi_enter();
+        add_pda(__nmi_count, 1);
+        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();
+}
+
 /* runs on IST stack. */
 asmlinkage void __kprobes do_int3(struct pt_regs * regs, long error_code)
 {