osfmk/i386/vmx.h

   1 /*
   2  * Copyright (c) 2006 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. The rights granted to you under the License
  10  * may not be used to create, or enable the creation or redistribution of,
  11  * unlawful or unlicensed copies of an Apple operating system, or to
  12  * circumvent, violate, or enable the circumvention or violation of, any
  13  * terms of an Apple operating system software license agreement.
  14  *
  15  * Please obtain a copy of the License at
  16  * http://www.opensource.apple.com/apsl/ and read it before using this file.
  17  *
  18  * The Original Code and all software distributed under the License are
  19  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  20  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  21  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  22  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  23  * Please see the License for the specific language governing rights and
  24  * limitations under the License.
  25  *
  26  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  27  */
  28
  29 #ifndef _I386_VMX_H_
  30 #define _I386_VMX_H_
  31
  32 #if defined(__cplusplus)
  33 extern "C" {
  34 #endif
  35
  36 #include <mach/boolean.h>
  37
  38 /*
  39  * Error codes
  40  */
  41 #define VMX_OK                  0 /* all ok */
  42 #define VMX_UNSUPPORTED 1 /* VT unsupported or disabled on 1+ cores */
  43 #define VMX_INUSE               2 /* VT is being exclusively used already */
  44
  45 /* SPI */
  46 int host_vmxon(boolean_t exclusive);
  47 void host_vmxoff(void);
  48
  49 #if defined(__cplusplus)
  50 }
  51 #endif
  52
  53 #endif