master
1/*-
2 * SPDX-License-Identifier: BSD-3-Clause
3 *
4 * Copyright (c) 1991 Regents of the University of California.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the University nor the names of its contributors
16 * may be used to endorse or promote products derived from this software
17 * without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 *
31 * from: @(#)proc.h 7.1 (Berkeley) 5/15/91
32 */
33
34#ifdef __i386__
35#include <i386/proc.h>
36#else /* !__i386__ */
37
38#ifndef _MACHINE_PROC_H_
39#define _MACHINE_PROC_H_
40
41#include <sys/queue.h>
42#include <machine/pcb.h>
43#include <machine/segments.h>
44
45/*
46 * List of locks
47 * c - proc lock
48 * k - only accessed by curthread
49 * pp - pmap.c:invl_gen_mtx
50 */
51
52struct proc_ldt {
53 caddr_t ldt_base;
54 int ldt_refcnt;
55};
56
57#define PMAP_INVL_GEN_NEXT_INVALID 0x1ULL
58struct pmap_invl_gen {
59 u_long gen; /* (k) */
60 union {
61 LIST_ENTRY(pmap_invl_gen) link; /* (pp) */
62 struct {
63 struct pmap_invl_gen *next;
64 u_char saved_pri;
65 };
66 };
67} __aligned(16);
68
69/*
70 * Machine-dependent part of the proc structure for AMD64.
71 */
72struct mdthread {
73 int md_spinlock_count; /* (k) */
74 register_t md_saved_flags; /* (k) */
75 register_t md_spurflt_addr; /* (k) Spurious page fault address. */
76 struct pmap_invl_gen md_invl_gen;
77 register_t md_efirt_tmp; /* (k) */
78 int md_efirt_dis_pf; /* (k) */
79 struct pcb md_pcb;
80 vm_offset_t md_stack_base;
81 void *md_usr_fpu_save;
82};
83
84struct mdproc {
85 struct proc_ldt *md_ldt; /* (t) per-process ldt */
86 struct system_segment_descriptor md_ldt_sd;
87 u_int md_flags; /* (c) md process flags P_MD */
88};
89
90#define P_MD_KPTI 0x00000001 /* Enable KPTI on exec */
91#define P_MD_LA48 0x00000002 /* Request LA48 after exec */
92#define P_MD_LA57 0x00000004 /* Request LA57 after exec */
93
94#define KINFO_PROC_SIZE 1088
95#define KINFO_PROC32_SIZE 768
96
97#ifdef _KERNEL
98
99struct proc_ldt *user_ldt_alloc(struct proc *, int);
100void user_ldt_free(struct thread *);
101struct sysarch_args;
102int sysarch_ldt(struct thread *td, struct sysarch_args *uap, int uap_space);
103int amd64_set_ldt_data(struct thread *td, int start, int num,
104 struct user_segment_descriptor *descs);
105
106extern struct mtx dt_lock;
107extern int max_ldt_segment;
108
109#define NARGREGS 6
110
111#endif /* _KERNEL */
112
113#endif /* !_MACHINE_PROC_H_ */
114
115#endif /* __i386__ */