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 * from: FreeBSD: src/sys/i386/include/proc.h,v 1.11 2001/06/29
29 */
30
31#ifdef __arm__
32#include <arm/proc.h>
33#else /* !__arm__ */
34
35#ifndef _MACHINE_PROC_H_
36#define _MACHINE_PROC_H_
37
38#ifndef LOCORE
39struct ptrauth_key {
40 uint64_t pa_key_lo;
41 uint64_t pa_key_hi;
42};
43
44struct mdthread {
45 int md_spinlock_count; /* (k) */
46 register_t md_saved_daif; /* (k) */
47 uintptr_t md_canary;
48
49 /*
50 * The pointer authentication keys. These are shared within a process,
51 * however this may change for some keys as the PAuth ABI Extension to
52 * ELF for the Arm 64-bit Architecture [1] is currently (July 2021) at
53 * an Alpha release quality so may change.
54 *
55 * [1] https://github.com/ARM-software/abi-aa/blob/main/pauthabielf64/pauthabielf64.rst
56 */
57 struct {
58 struct ptrauth_key apia;
59 struct ptrauth_key apib;
60 struct ptrauth_key apda;
61 struct ptrauth_key apdb;
62 struct ptrauth_key apga;
63 } md_ptrauth_user;
64
65 struct {
66 struct ptrauth_key apia;
67 } md_ptrauth_kern;
68
69 uint64_t md_efirt_tmp;
70 int md_efirt_dis_pf;
71
72 int md_reserved0;
73 uint64_t md_reserved[2];
74};
75
76struct mdproc {
77 uint64_t md_tcr; /* TCR_EL1 fields to update */
78 uint64_t md_reserved[2];
79};
80#endif /* !LOCORE */
81
82/* Fields that can be set in md_tcr */
83#define MD_TCR_FIELDS TCR_TBI0
84
85#define KINFO_PROC_SIZE 1088
86#define KINFO_PROC32_SIZE 816
87
88#endif /* !_MACHINE_PROC_H_ */
89
90#endif /* !__arm__ */