xref: /xnu-11215.1.10/osfmk/i386/vmx.h (revision 8d741a5de7ff4191bf97d57b9f54c2f6d4a15585)
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
54