2 * SPDX-License-Identifier: BSD-3-Clause
4 * Copyright (c) 1992, 1993
5 * The Regents of the University of California. All rights reserved.
7 * This code is derived from software developed by the Computer Systems
8 * Engineering group at Lawrence Berkeley Laboratory under DARPA contract
9 * BG 91-66 and contributed to Berkeley.
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12 * modification, are permitted provided that the following conditions
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35 * @(#)kvm_private.h 8.1 (Berkeley) 6/4/93
39 #include <sys/endian.h>
40 #include <sys/linker_set.h>
44 int (*ka_probe)(kvm_t *);
45 int (*ka_initvtop)(kvm_t *);
46 void (*ka_freevtop)(kvm_t *);
47 int (*ka_kvatop)(kvm_t *, kvaddr_t, off_t *);
48 int (*ka_native)(kvm_t *);
49 int (*ka_walk_pages)(kvm_t *, kvm_walk_pages_cb_t *, void *);
50 kssize_t (*ka_kerndisp)(kvm_t *);
53 #define KVM_ARCH(ka) DATA_SET(kvm_arch, ka)
56 struct kvm_arch *arch;
58 * a string to be prepended to error messages
59 * provided for compatibility with sun's interface
60 * if this value is null, errors are saved in errbuf[]
63 char *errp; /* XXX this can probably go away */
64 char errbuf[_POSIX2_LINE_MAX];
65 #define ISALIVE(kd) ((kd)->vmfd >= 0)
66 int pmfd; /* physical memory file (or crashdump) */
67 int vmfd; /* virtual memory file (-1 if crashdump) */
68 int nlfd; /* namelist file (e.g., /kernel) */
69 GElf_Ehdr nlehdr; /* ELF file header for namelist file */
70 int (*resolve_symbol)(const char *, kvaddr_t *);
71 struct kinfo_proc *procbase;
72 char *argspc; /* (dynamic) storage for argv strings */
73 int arglen; /* length of the above */
74 char **argv; /* (dynamic) storage for argv pointers */
75 int argc; /* length of above (not actual # present) */
76 char *argbuf; /* (dynamic) temporary storage */
78 * Kernel virtual address translation state. This only gets filled
79 * in for dead kernels; otherwise, the running kernel (i.e. kmem)
80 * will do the translations for us. It could be big, so we
81 * only allocate it if necessary.
84 int rawdump; /* raw dump format */
85 int writable; /* physical memory is writable */
87 int vnet_initialized; /* vnet fields set up */
88 kvaddr_t vnet_start; /* start of kernel's vnet region */
89 kvaddr_t vnet_stop; /* stop of kernel's vnet region */
90 kvaddr_t vnet_current; /* vnet we're working with */
91 kvaddr_t vnet_base; /* vnet base of current vnet */
94 * Dynamic per-CPU kernel memory. We translate symbols, on-demand,
95 * to the data associated with dpcpu_curcpu, set with
98 int dpcpu_initialized; /* dpcpu fields set up */
99 kvaddr_t dpcpu_start; /* start of kernel's dpcpu region */
100 kvaddr_t dpcpu_stop; /* stop of kernel's dpcpu region */
101 u_int dpcpu_maxcpus; /* size of base array */
102 uintptr_t *dpcpu_off; /* base array, indexed by CPU ID */
103 u_int dpcpu_curcpu; /* CPU we're currently working with */
104 kvaddr_t dpcpu_curoff; /* dpcpu base of current CPU */
106 /* Page table lookup structures. */
110 uint64_t pt_sparse_size;
111 uint32_t *pt_popcounts;
112 unsigned int pt_page_size;
113 unsigned int pt_word_size;
115 /* Page & sparse map structures. */
117 uint32_t page_map_size;
127 /* Page table lookup constants. */
128 #define POPCOUNT_BITS 1024
129 #define BITS_IN(v) (sizeof(v) * NBBY)
130 #define POPCOUNTS_IN(v) (POPCOUNT_BITS / BITS_IN(v))
133 * Functions used internally by kvm, but across kvm modules.
135 static inline uint32_t
136 _kvm32toh(kvm_t *kd, uint32_t val)
139 if (kd->nlehdr.e_ident[EI_DATA] == ELFDATA2LSB)
140 return (le32toh(val));
142 return (be32toh(val));
145 static inline uint64_t
146 _kvm64toh(kvm_t *kd, uint64_t val)
149 if (kd->nlehdr.e_ident[EI_DATA] == ELFDATA2LSB)
150 return (le64toh(val));
152 return (be64toh(val));
155 int _kvm_bitmap_init(struct kvm_bitmap *, u_long, u_long *);
156 void _kvm_bitmap_set(struct kvm_bitmap *, u_long, unsigned int);
157 int _kvm_bitmap_next(struct kvm_bitmap *, u_long *);
158 void _kvm_bitmap_deinit(struct kvm_bitmap *);
160 void _kvm_err(kvm_t *kd, const char *program, const char *fmt, ...)
162 void _kvm_freeprocs(kvm_t *kd);
163 void *_kvm_malloc(kvm_t *kd, size_t);
164 int _kvm_nlist(kvm_t *, struct kvm_nlist *, int);
165 void *_kvm_realloc(kvm_t *kd, void *, size_t);
166 void _kvm_syserr (kvm_t *kd, const char *program, const char *fmt, ...)
168 int _kvm_vnet_selectpid(kvm_t *, pid_t);
169 int _kvm_vnet_initialized(kvm_t *, int);
170 kvaddr_t _kvm_vnet_validaddr(kvm_t *, kvaddr_t);
171 int _kvm_dpcpu_initialized(kvm_t *, int);
172 kvaddr_t _kvm_dpcpu_validaddr(kvm_t *, kvaddr_t);
173 int _kvm_probe_elf_kernel(kvm_t *, int, int);
174 int _kvm_is_minidump(kvm_t *);
175 int _kvm_read_core_phdrs(kvm_t *, size_t *, GElf_Phdr **);
176 int _kvm_pt_init(kvm_t *, size_t, off_t, off_t, int, int);
177 off_t _kvm_pt_find(kvm_t *, uint64_t, unsigned int);
178 int _kvm_visit_cb(kvm_t *, kvm_walk_pages_cb_t *, void *, u_long,
179 u_long, u_long, vm_prot_t, size_t, unsigned int);
180 int _kvm_pmap_init(kvm_t *, uint32_t, off_t);
181 void * _kvm_pmap_get(kvm_t *, u_long, size_t);
182 void * _kvm_map_get(kvm_t *, u_long, unsigned int);