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 */
32
33#ifdef __arm__
34#include <arm/proc.h>
35#else /* !__arm__ */
36
37#ifndef	_MACHINE_PROC_H_
38#define	_MACHINE_PROC_H_
39
40struct ptrauth_key {
41	uint64_t pa_key_lo;
42	uint64_t pa_key_hi;
43};
44
45struct mdthread {
46	int	md_spinlock_count;	/* (k) */
47	register_t md_saved_daif;	/* (k) */
48	uintptr_t md_canary;
49
50	/*
51	 * The pointer authentication keys. These are shared within a process,
52	 * however this may change for some keys as the PAuth ABI Extension to
53	 * ELF for the Arm 64-bit Architecture [1] is currently (July 2021) at
54	 * an Alpha release quality so may change.
55	 *
56	 * [1] https://github.com/ARM-software/abi-aa/blob/main/pauthabielf64/pauthabielf64.rst
57	 */
58	struct {
59		struct ptrauth_key apia;
60		struct ptrauth_key apib;
61		struct ptrauth_key apda;
62		struct ptrauth_key apdb;
63		struct ptrauth_key apga;
64	} md_ptrauth_user;
65
66	struct {
67		struct ptrauth_key apia;
68	} md_ptrauth_kern;
69
70	uint64_t md_reserved[4];
71};
72
73struct mdproc {
74	long	md_dummy;
75};
76
77#define	KINFO_PROC_SIZE	1088
78#define	KINFO_PROC32_SIZE 816
79
80#endif /* !_MACHINE_PROC_H_ */
81
82#endif /* !__arm__ */