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 39 struct ptrauth_key { 40 uint64_t pa_key_lo; 41 uint64_t pa_key_hi; 42 }; 43 44 struct 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 76 struct mdproc { 77 uint64_t md_tcr; /* TCR_EL1 fields to update */ 78 }; 79 #endif /* !LOCORE */ 80 81 /* Fields that can be set in md_tcr */ 82 #define MD_TCR_FIELDS TCR_TBI0 83 84 #define KINFO_PROC_SIZE 1088 85 #define KINFO_PROC32_SIZE 816 86 87 #endif /* !_MACHINE_PROC_H_ */ 88 89 #endif /* !__arm__ */ 90