11844 add rdmsr utility
Reviewed by: Dan McDonald <danmcd@joyent.com>

*** 21,31 ****
  
  /*
   * Copyright (c) 1989, 2010, Oracle and/or its affiliates. All rights reserved.
   * Copyright (c) 2011, 2017 by Delphix. All rights reserved.
   * Copyright 2011 Nexenta Systems, Inc. All rights reserved.
!  * Copyright 2019, Joyent, Inc.
   * Copyright (c) 2014, OmniTI Computer Consulting, Inc. All rights reserved.
   */
  
  /*      Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
  /*        All Rights Reserved   */
--- 21,31 ----
  
  /*
   * Copyright (c) 1989, 2010, Oracle and/or its affiliates. All rights reserved.
   * Copyright (c) 2011, 2017 by Delphix. All rights reserved.
   * Copyright 2011 Nexenta Systems, Inc. All rights reserved.
!  * Copyright 2019 Joyent, Inc.
   * Copyright (c) 2014, OmniTI Computer Consulting, Inc. All rights reserved.
   */
  
  /*      Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
  /*        All Rights Reserved   */
*** 101,110 ****
--- 101,111 ----
  #include <inet/iptun.h>
  #include <sys/zcons.h>
  #include <sys/usb/clients/hid/hid.h>
  #include <sys/pm.h>
  #include <sys/soundcard.h>
+ #include <sys/cpuid_drv.h>
  
  #include "ramdata.h"
  #include "proto.h"
  
  #define FCNTLMIN        F_DUPFD
*** 1668,1677 ****
--- 1669,1684 ----
                  "pm_req_t" },
          { (uint_t)PM_SEARCH_LIST,       "PM_SEARCH_LIST",
                  "pm_searchargs_t" },
  #endif /* _SYSCALL */
  
+         /* cpuid ioctls */
+         { (uint_t)CPUID_GET_HWCAP,              "CPUID_GET_HWCAP", NULL },
+ #if defined(__i386) || defined(__amd64)
+         { (uint_t)CPUID_RDMSR,                  "CPUID_RDMSR", NULL },
+ #endif
+ 
          { (uint_t)0, NULL, NULL }
  };
  
  void
  ioctl_ioccom(char *buf, size_t size, uint_t code, int nbytes, int x, int y)