1/*
2 * Copyright (c) 2011 Apple 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 _SYS_KAS_INFO_H_
30#define _SYS_KAS_INFO_H_
31
32#include <sys/cdefs.h>
33#include <Availability.h>
34
35/*
36 * kas_info() ("Kernel Address Space Info") is a private interface that allows
37 * appropriately privileged system components to introspect the overall
38 * kernel address space layout.
39 */
40
41__BEGIN_DECLS
42
43/* The slide of the main kernel compared to its static link address */
44#define KAS_INFO_KERNEL_TEXT_SLIDE_SELECTOR (0) /* returns uint64_t */
45#define KAS_INFO_KERNEL_SEGMENT_VMADDR_SELECTOR (1)
46
47/* Return the SPTM/TXM slide if on a system configured to run those images. */
48#define KAS_INFO_SPTM_TEXT_SLIDE_SELECTOR (2) /* returns uint64_t */
49#define KAS_INFO_TXM_TEXT_SLIDE_SELECTOR (3) /* returns uint64_t */
50#define KAS_INFO_MAX_SELECTOR (4)
51
52#ifndef KERNEL
53
54int kas_info(int selector, void *value, size_t *size) __OSX_AVAILABLE_STARTING(__MAC_10_8, __IPHONE_6_0);
55
56#endif /* KERNEL */
57
58__END_DECLS
59
60#endif /* !_SYS_KAS_INFO_H_ */
61