xref: /freebsd/sys/arm64/include/proc.h (revision edf8578117e8844e02c0121147f45e4609b30680)
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 
40 struct ptrauth_key {
41 	uint64_t pa_key_lo;
42 	uint64_t pa_key_hi;
43 };
44 
45 struct 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 
73 struct 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__ */
83