xref: /xnu-11417.101.15/bsd/sys/kas_info.h (revision e3723e1f17661b24996789d8afc084c0c3303b26)
1*e3723e1fSApple OSS Distributions /*
2*e3723e1fSApple OSS Distributions  * Copyright (c) 2011 Apple Inc. All rights reserved.
3*e3723e1fSApple OSS Distributions  *
4*e3723e1fSApple OSS Distributions  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5*e3723e1fSApple OSS Distributions  *
6*e3723e1fSApple OSS Distributions  * This file contains Original Code and/or Modifications of Original Code
7*e3723e1fSApple OSS Distributions  * as defined in and that are subject to the Apple Public Source License
8*e3723e1fSApple OSS Distributions  * Version 2.0 (the 'License'). You may not use this file except in
9*e3723e1fSApple OSS Distributions  * compliance with the License. The rights granted to you under the License
10*e3723e1fSApple OSS Distributions  * may not be used to create, or enable the creation or redistribution of,
11*e3723e1fSApple OSS Distributions  * unlawful or unlicensed copies of an Apple operating system, or to
12*e3723e1fSApple OSS Distributions  * circumvent, violate, or enable the circumvention or violation of, any
13*e3723e1fSApple OSS Distributions  * terms of an Apple operating system software license agreement.
14*e3723e1fSApple OSS Distributions  *
15*e3723e1fSApple OSS Distributions  * Please obtain a copy of the License at
16*e3723e1fSApple OSS Distributions  * http://www.opensource.apple.com/apsl/ and read it before using this file.
17*e3723e1fSApple OSS Distributions  *
18*e3723e1fSApple OSS Distributions  * The Original Code and all software distributed under the License are
19*e3723e1fSApple OSS Distributions  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20*e3723e1fSApple OSS Distributions  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21*e3723e1fSApple OSS Distributions  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22*e3723e1fSApple OSS Distributions  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23*e3723e1fSApple OSS Distributions  * Please see the License for the specific language governing rights and
24*e3723e1fSApple OSS Distributions  * limitations under the License.
25*e3723e1fSApple OSS Distributions  *
26*e3723e1fSApple OSS Distributions  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27*e3723e1fSApple OSS Distributions  */
28*e3723e1fSApple OSS Distributions 
29*e3723e1fSApple OSS Distributions #ifndef _SYS_KAS_INFO_H_
30*e3723e1fSApple OSS Distributions #define _SYS_KAS_INFO_H_
31*e3723e1fSApple OSS Distributions 
32*e3723e1fSApple OSS Distributions #include <sys/cdefs.h>
33*e3723e1fSApple OSS Distributions #include <Availability.h>
34*e3723e1fSApple OSS Distributions 
35*e3723e1fSApple OSS Distributions /*
36*e3723e1fSApple OSS Distributions  * kas_info() ("Kernel Address Space Info") is a private interface that allows
37*e3723e1fSApple OSS Distributions  * appropriately privileged system components to introspect the overall
38*e3723e1fSApple OSS Distributions  * kernel address space layout.
39*e3723e1fSApple OSS Distributions  */
40*e3723e1fSApple OSS Distributions 
41*e3723e1fSApple OSS Distributions __BEGIN_DECLS
42*e3723e1fSApple OSS Distributions 
43*e3723e1fSApple OSS Distributions /* The slide of the main kernel compared to its static link address */
44*e3723e1fSApple OSS Distributions #define KAS_INFO_KERNEL_TEXT_SLIDE_SELECTOR     (0) /* returns uint64_t */
45*e3723e1fSApple OSS Distributions #define KAS_INFO_KERNEL_SEGMENT_VMADDR_SELECTOR (1)
46*e3723e1fSApple OSS Distributions 
47*e3723e1fSApple OSS Distributions /* Return the SPTM/TXM slide if on a system configured to run those images. */
48*e3723e1fSApple OSS Distributions #define KAS_INFO_SPTM_TEXT_SLIDE_SELECTOR       (2) /* returns uint64_t */
49*e3723e1fSApple OSS Distributions #define KAS_INFO_TXM_TEXT_SLIDE_SELECTOR        (3) /* returns uint64_t */
50*e3723e1fSApple OSS Distributions #define KAS_INFO_MAX_SELECTOR                   (4)
51*e3723e1fSApple OSS Distributions 
52*e3723e1fSApple OSS Distributions #ifndef KERNEL
53*e3723e1fSApple OSS Distributions 
54*e3723e1fSApple OSS Distributions int kas_info(int selector, void *value, size_t *size) __OSX_AVAILABLE_STARTING(__MAC_10_8, __IPHONE_6_0);
55*e3723e1fSApple OSS Distributions 
56*e3723e1fSApple OSS Distributions #endif /* KERNEL */
57*e3723e1fSApple OSS Distributions 
58*e3723e1fSApple OSS Distributions __END_DECLS
59*e3723e1fSApple OSS Distributions 
60*e3723e1fSApple OSS Distributions #endif  /* !_SYS_KAS_INFO_H_ */
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