2 * SPDX-License-Identifier: BSD-3-Clause
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31 * from: @(#)proc.h 7.1 (Berkeley) 5/15/91
35 #ifndef _MACHINE_PROC_H_
36 #define _MACHINE_PROC_H_
38 #include <sys/queue.h>
39 #include <machine/pcb.h>
40 #include <machine/segments.h>
45 * k - only accessed by curthread
46 * pp - pmap.c:invl_gen_mtx
54 #define PMAP_INVL_GEN_NEXT_INVALID 0x1ULL
55 struct pmap_invl_gen {
58 LIST_ENTRY(pmap_invl_gen) link; /* (pp) */
60 struct pmap_invl_gen *next;
67 * Machine-dependent part of the proc structure for AMD64.
70 int md_spinlock_count; /* (k) */
71 register_t md_saved_flags; /* (k) */
72 register_t md_spurflt_addr; /* (k) Spurious page fault address. */
73 struct pmap_invl_gen md_invl_gen;
74 register_t md_efirt_tmp; /* (k) */
75 int md_efirt_dis_pf; /* (k) */
77 vm_offset_t md_stack_base;
81 struct proc_ldt *md_ldt; /* (t) per-process ldt */
82 struct system_segment_descriptor md_ldt_sd;
83 u_int md_flags; /* (c) md process flags P_MD */
86 #define P_MD_KPTI 0x00000001 /* Enable KPTI on exec */
88 #define KINFO_PROC_SIZE 1088
89 #define KINFO_PROC32_SIZE 768
100 /* Get the current kernel thread stack usage. */
101 #define GET_STACK_USAGE(total, used) do { \
102 struct thread *td = curthread; \
103 (total) = td->td_kstack_pages * PAGE_SIZE; \
104 (used) = (char *)td->td_kstack + \
105 td->td_kstack_pages * PAGE_SIZE - \
109 struct proc_ldt *user_ldt_alloc(struct proc *, int);
110 void user_ldt_free(struct thread *);
112 int sysarch_ldt(struct thread *td, struct sysarch_args *uap, int uap_space);
113 int amd64_set_ldt_data(struct thread *td, int start, int num,
114 struct user_segment_descriptor *descs);
116 extern struct mtx dt_lock;
117 extern int max_ldt_segment;
123 #endif /* !_MACHINE_PROC_H_ */