10597 would like a way to set NMI behavior at boot
Reviewed by: Robert Mustacchi <rm@joyent.com>
Reviewed by: Andy Fiddaman <andy@omniosce.org>

@@ -21,11 +21,11 @@
 /*
  * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
  * Copyright (c) 2017 by Delphix. All rights reserved.
  */
 /*
- * Copyright 2018 Joyent, Inc.
+ * Copyright 2019, Joyent, Inc.
  */
 
 #ifndef _SYS_APIC_COMMON_H
 #define _SYS_APIC_COMMON_H
 

@@ -153,11 +153,10 @@
 extern lock_t   apic_nmi_lock;
 /* use to make sure only one cpu handles the error interrupt */
 extern lock_t   apic_error_lock;
 
 /* Patchable global variables. */
-extern int      apic_kmdb_on_nmi;       /* 0 - no, 1 - yes enter kmdb */
 extern uint32_t apic_divide_reg_init;   /* 0 - divide by 2 */
 
 extern apic_intrmap_ops_t *apic_vt_ops;
 
 #ifdef  DEBUG

@@ -200,10 +199,19 @@
 extern int      apic_msix_enable;
 
 extern uint32_t apic_get_localapicid(uint32_t cpuid);
 extern uchar_t apic_get_ioapicid(uchar_t ioapicindex);
 
+typedef enum nmi_action {
+        NMI_ACTION_UNSET,
+        NMI_ACTION_PANIC,
+        NMI_ACTION_IGNORE,
+        NMI_ACTION_KMDB
+} nmi_action_t;
+
+extern nmi_action_t nmi_action;
+
 #ifdef  __cplusplus
 }
 #endif
 
 #endif  /* _SYS_APIC_COMMON_H */