xref: /freebsd/sys/arm64/include/proc.h (revision ba3c1f5972d7b90feb6e6da47905ff2757e0fe57)
1 /*-
2  * Copyright (c) 1991 Regents of the University of California.
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  * 3. Neither the name of the University nor the names of its contributors
14  *    may be used to endorse or promote products derived from this software
15  *    without specific prior written permission.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27  * SUCH DAMAGE.
28  *
29  *      from: @(#)proc.h        7.1 (Berkeley) 5/15/91
30  *	from: FreeBSD: src/sys/i386/include/proc.h,v 1.11 2001/06/29
31  * $FreeBSD$
32  */
33 
34 #ifdef __arm__
35 #include <arm/proc.h>
36 #else /* !__arm__ */
37 
38 #ifndef	_MACHINE_PROC_H_
39 #define	_MACHINE_PROC_H_
40 
41 struct ptrauth_key {
42 	uint64_t pa_key_lo;
43 	uint64_t pa_key_hi;
44 };
45 
46 struct mdthread {
47 	int	md_spinlock_count;	/* (k) */
48 	register_t md_saved_daif;	/* (k) */
49 	uintptr_t md_canary;
50 
51 	/*
52 	 * The pointer authentication keys. These are shared within a process,
53 	 * however this may change for some keys as the PAuth ABI Extension to
54 	 * ELF for the Arm 64-bit Architecture [1] is currently (July 2021) at
55 	 * an Alpha release quality so may change.
56 	 *
57 	 * [1] https://github.com/ARM-software/abi-aa/blob/main/pauthabielf64/pauthabielf64.rst
58 	 */
59 	struct {
60 		struct ptrauth_key apia;
61 		struct ptrauth_key apib;
62 		struct ptrauth_key apda;
63 		struct ptrauth_key apdb;
64 		struct ptrauth_key apga;
65 	} md_ptrauth_user;
66 
67 	struct {
68 		struct ptrauth_key apia;
69 	} md_ptrauth_kern;
70 
71 	uint64_t md_reserved[4];
72 };
73 
74 struct mdproc {
75 	long	md_dummy;
76 };
77 
78 #define	KINFO_PROC_SIZE	1088
79 #define	KINFO_PROC32_SIZE 816
80 
81 #endif /* !_MACHINE_PROC_H_ */
82 
83 #endif /* !__arm__ */
84