Add boot_hrtime to global and zone kstats.

@@ -21,10 +21,11 @@
 /*
  * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
  * Copyright 2013, Joyent, Inc. All rights reserved.
  * Copyright 2014 Nexenta Systems, Inc. All rights reserved.
  * Copyright 2014 Igor Kozhukhov <ikozhukhov@gmail.com>.
+ * Copyright 2016 Garrett D'Amore
  */
 
 #ifndef _SYS_ZONE_H
 #define _SYS_ZONE_H
 

@@ -397,10 +398,11 @@
         kstat_named_t   zm_fss_pri_avg;
         kstat_named_t   zm_ffcap;
         kstat_named_t   zm_ffnoproc;
         kstat_named_t   zm_ffnomem;
         kstat_named_t   zm_ffmisc;
+        kstat_named_t   zm_boot_hrtime;
 } zone_misc_kstat_t;
 
 typedef struct zone {
         /*
          * zone_name is never modified once set.

@@ -514,10 +516,11 @@
         hrtime_t        zone_pool_mod;  /* last pool bind modification time */
         /* zone_psetid is protected by cpu_lock */
         psetid_t        zone_psetid;    /* pset the zone is bound to */
 
         time_t          zone_boot_time; /* Similar to boot_time */
+        hrtime_t        zone_boot_hrtime; /* gethrtime() at zone boot */
 
         /*
          * The following two can be read without holding any locks.  They are
          * updated under cpu_lock.
          */