Deleted Added
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bootinfo64.c (66133) bootinfo64.c (72640)
1/*-
2 * Copyright (c) 1998 Michael Smith <msmith@freebsd.org>
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 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
1/*-
2 * Copyright (c) 1998 Michael Smith <msmith@freebsd.org>
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 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 * $FreeBSD: head/sys/boot/i386/libi386/bootinfo64.c 66133 2000-09-20 18:13:36Z archie $
26 * $FreeBSD: head/sys/boot/i386/libi386/bootinfo64.c 72640 2001-02-18 10:25:42Z asmodai $
27 */
28
29#include <stand.h>
30#include <sys/param.h>
31#include <sys/reboot.h>
32#include <sys/linker.h>
33#include <machine/bootinfo.h>
34#include "bootstrap.h"
35#include "libi386.h"
36#include "btxv86.h"
37
38static struct bootinfo bi;
39
40/*
41 * Return a 'boothowto' value corresponding to the kernel arguments in
42 * (kargs) and any relevant environment variables.
43 */
44static struct
45{
46 const char *ev;
47 int mask;
48} howto_names[] = {
49 {"boot_askname", RB_ASKNAME},
50 {"boot_cdrom", RB_CDROM},
51 {"boot_userconfig", RB_CONFIG},
52 {"boot_ddb", RB_KDB},
53 {"boot_gdb", RB_GDB},
54 {"boot_single", RB_SINGLE},
55 {"boot_verbose", RB_VERBOSE},
56 {NULL, 0}
57};
58
59vm_offset_t bi_copymodules(vm_offset_t addr);
60
61int
62bi_getboothowto(char *kargs)
63{
64 char *cp;
65 int howto;
66 int active;
67 int i;
68
69 /* Parse kargs */
70 howto = 0;
71 if (kargs != NULL) {
72 cp = kargs;
73 active = 0;
74 while (*cp != 0) {
75 if (!active && (*cp == '-')) {
76 active = 1;
77 } else if (active)
78 switch (*cp) {
79 case 'a':
80 howto |= RB_ASKNAME;
81 break;
82 case 'c':
83 howto |= RB_CONFIG;
84 break;
85 case 'C':
86 howto |= RB_CDROM;
87 break;
88 case 'd':
89 howto |= RB_KDB;
90 break;
91 case 'm':
92 howto |= RB_MUTE;
93 break;
94 case 'g':
95 howto |= RB_GDB;
96 break;
97 case 'h':
98 howto |= RB_SERIAL;
99 break;
100 case 'r':
101 howto |= RB_DFLTROOT;
102 break;
103 case 's':
104 howto |= RB_SINGLE;
105 break;
106 case 'v':
107 howto |= RB_VERBOSE;
108 break;
109 default:
110 active = 0;
111 break;
112 }
113 cp++;
114 }
115 }
116 /* get equivalents from the environment */
117 for (i = 0; howto_names[i].ev != NULL; i++)
118 if (getenv(howto_names[i].ev) != NULL)
119 howto |= howto_names[i].mask;
120 if (!strcmp(getenv("console"), "comconsole"))
121 howto |= RB_SERIAL;
122 if (!strcmp(getenv("console"), "nullconsole"))
123 howto |= RB_MUTE;
124 return(howto);
125}
126
127/*
128 * Copy the environment into the load area starting at (addr).
129 * Each variable is formatted as <name>=<value>, with a single nul
130 * separating each variable, and a double nul terminating the environment.
131 */
132vm_offset_t
133bi_copyenv(vm_offset_t addr)
134{
135 struct env_var *ep;
136
137 /* traverse the environment */
138 for (ep = environ; ep != NULL; ep = ep->ev_next) {
139 i386_copyin(ep->ev_name, addr, strlen(ep->ev_name));
140 addr += strlen(ep->ev_name);
141 i386_copyin("=", addr, 1);
142 addr++;
143 if (ep->ev_value != NULL) {
144 i386_copyin(ep->ev_value, addr, strlen(ep->ev_value));
145 addr += strlen(ep->ev_value);
146 }
147 i386_copyin("", addr, 1);
148 addr++;
149 }
150 i386_copyin("", addr, 1);
151 addr++;
152 return(addr);
153}
154
155/*
156 * Copy module-related data into the load area, where it can be
157 * used as a directory for loaded modules.
158 *
159 * Module data is presented in a self-describing format. Each datum
27 */
28
29#include <stand.h>
30#include <sys/param.h>
31#include <sys/reboot.h>
32#include <sys/linker.h>
33#include <machine/bootinfo.h>
34#include "bootstrap.h"
35#include "libi386.h"
36#include "btxv86.h"
37
38static struct bootinfo bi;
39
40/*
41 * Return a 'boothowto' value corresponding to the kernel arguments in
42 * (kargs) and any relevant environment variables.
43 */
44static struct
45{
46 const char *ev;
47 int mask;
48} howto_names[] = {
49 {"boot_askname", RB_ASKNAME},
50 {"boot_cdrom", RB_CDROM},
51 {"boot_userconfig", RB_CONFIG},
52 {"boot_ddb", RB_KDB},
53 {"boot_gdb", RB_GDB},
54 {"boot_single", RB_SINGLE},
55 {"boot_verbose", RB_VERBOSE},
56 {NULL, 0}
57};
58
59vm_offset_t bi_copymodules(vm_offset_t addr);
60
61int
62bi_getboothowto(char *kargs)
63{
64 char *cp;
65 int howto;
66 int active;
67 int i;
68
69 /* Parse kargs */
70 howto = 0;
71 if (kargs != NULL) {
72 cp = kargs;
73 active = 0;
74 while (*cp != 0) {
75 if (!active && (*cp == '-')) {
76 active = 1;
77 } else if (active)
78 switch (*cp) {
79 case 'a':
80 howto |= RB_ASKNAME;
81 break;
82 case 'c':
83 howto |= RB_CONFIG;
84 break;
85 case 'C':
86 howto |= RB_CDROM;
87 break;
88 case 'd':
89 howto |= RB_KDB;
90 break;
91 case 'm':
92 howto |= RB_MUTE;
93 break;
94 case 'g':
95 howto |= RB_GDB;
96 break;
97 case 'h':
98 howto |= RB_SERIAL;
99 break;
100 case 'r':
101 howto |= RB_DFLTROOT;
102 break;
103 case 's':
104 howto |= RB_SINGLE;
105 break;
106 case 'v':
107 howto |= RB_VERBOSE;
108 break;
109 default:
110 active = 0;
111 break;
112 }
113 cp++;
114 }
115 }
116 /* get equivalents from the environment */
117 for (i = 0; howto_names[i].ev != NULL; i++)
118 if (getenv(howto_names[i].ev) != NULL)
119 howto |= howto_names[i].mask;
120 if (!strcmp(getenv("console"), "comconsole"))
121 howto |= RB_SERIAL;
122 if (!strcmp(getenv("console"), "nullconsole"))
123 howto |= RB_MUTE;
124 return(howto);
125}
126
127/*
128 * Copy the environment into the load area starting at (addr).
129 * Each variable is formatted as <name>=<value>, with a single nul
130 * separating each variable, and a double nul terminating the environment.
131 */
132vm_offset_t
133bi_copyenv(vm_offset_t addr)
134{
135 struct env_var *ep;
136
137 /* traverse the environment */
138 for (ep = environ; ep != NULL; ep = ep->ev_next) {
139 i386_copyin(ep->ev_name, addr, strlen(ep->ev_name));
140 addr += strlen(ep->ev_name);
141 i386_copyin("=", addr, 1);
142 addr++;
143 if (ep->ev_value != NULL) {
144 i386_copyin(ep->ev_value, addr, strlen(ep->ev_value));
145 addr += strlen(ep->ev_value);
146 }
147 i386_copyin("", addr, 1);
148 addr++;
149 }
150 i386_copyin("", addr, 1);
151 addr++;
152 return(addr);
153}
154
155/*
156 * Copy module-related data into the load area, where it can be
157 * used as a directory for loaded modules.
158 *
159 * Module data is presented in a self-describing format. Each datum
160 * is preceeded by a 32-bit identifier and a 32-bit size field.
160 * is preceded by a 32-bit identifier and a 32-bit size field.
161 *
162 * Currently, the following data are saved:
163 *
164 * MOD_NAME (variable) module name (string)
165 * MOD_TYPE (variable) module type (string)
166 * MOD_ARGS (variable) module parameters (string)
167 * MOD_ADDR sizeof(vm_offset_t) module load address
168 * MOD_SIZE sizeof(size_t) module size
169 * MOD_METADATA (variable) type-specific metadata
170 */
171#define COPY32(v, a) { \
172 u_int32_t x = (v); \
173 i386_copyin(&x, a, sizeof(x)); \
174 a += sizeof(x); \
175}
176
177#define MOD_STR(t, a, s) { \
178 COPY32(t, a); \
179 COPY32(strlen(s) + 1, a); \
180 i386_copyin(s, a, strlen(s) + 1); \
181 a += roundup(strlen(s) + 1, sizeof(u_long));\
182}
183
184#define MOD_NAME(a, s) MOD_STR(MODINFO_NAME, a, s)
185#define MOD_TYPE(a, s) MOD_STR(MODINFO_TYPE, a, s)
186#define MOD_ARGS(a, s) MOD_STR(MODINFO_ARGS, a, s)
187
188#define MOD_VAR(t, a, s) { \
189 COPY32(t, a); \
190 COPY32(sizeof(s), a); \
191 i386_copyin(&s, a, sizeof(s)); \
192 a += roundup(sizeof(s), sizeof(u_long)); \
193}
194
195#define MOD_ADDR(a, s) MOD_VAR(MODINFO_ADDR, a, s)
196#define MOD_SIZE(a, s) MOD_VAR(MODINFO_SIZE, a, s)
197
198#define MOD_METADATA(a, mm) { \
199 COPY32(MODINFO_METADATA | mm->md_type, a); \
200 COPY32(mm->md_size, a); \
201 i386_copyin(mm->md_data, a, mm->md_size); \
202 a += roundup(mm->md_size, sizeof(u_long));\
203}
204
205#define MOD_END(a) { \
206 COPY32(MODINFO_END, a); \
207 COPY32(0, a); \
208}
209
210vm_offset_t
211bi_copymodules(vm_offset_t addr)
212{
213 struct preloaded_file *fp;
214 struct file_metadata *md;
215
216 /* start with the first module on the list, should be the kernel */
217 for (fp = file_findfile(NULL, NULL); fp != NULL; fp = fp->f_next) {
218
219 MOD_NAME(addr, fp->f_name); /* this field must come first */
220 MOD_TYPE(addr, fp->f_type);
221 if (fp->f_args)
222 MOD_ARGS(addr, fp->f_args);
223 MOD_ADDR(addr, fp->f_addr);
224 MOD_SIZE(addr, fp->f_size);
225 for (md = fp->f_metadata; md != NULL; md = md->md_next)
226 if (!(md->md_type & MODINFOMD_NOCOPY))
227 MOD_METADATA(addr, md);
228 }
229 MOD_END(addr);
230 return(addr);
231}
232
233/*
234 * Load the information expected by an i386 kernel.
235 *
236 * - The 'boothowto' argument is constructed
237 * - The 'bootdev' argument is constructed
238 * - The 'bootinfo' struct is constructed, and copied into the kernel space.
239 * - The kernel environment is copied into kernel space.
240 * - Module metadata are formatted and placed in kernel space.
241 */
242int
243bi_load(char *args, int *howtop, int *bootdevp, vm_offset_t *bip)
244{
245 struct preloaded_file *xp;
246 struct i386_devdesc *rootdev;
247 vm_offset_t addr;
248 char *rootdevname;
249 int bootdevnr, i;
250 u_int pad;
251 char *kernelname;
252 const char *kernelpath;
253
254 *howtop = bi_getboothowto(args);
255
256 /*
257 * Allow the environment variable 'rootdev' to override the supplied device
258 * This should perhaps go to MI code and/or have $rootdev tested/set by
259 * MI code before launching the kernel.
260 */
261 rootdevname = getenv("rootdev");
262 i386_getdev((void **)(&rootdev), rootdevname, NULL);
263 if (rootdev == NULL) { /* bad $rootdev/$currdev */
264 printf("can't determine root device\n");
265 return(EINVAL);
266 }
267
268 /* Try reading the /etc/fstab file to select the root device */
269 getrootmount(i386_fmtdev((void *)rootdev));
270
271 /* Do legacy rootdev guessing */
272
273 /* XXX - use a default bootdev of 0. Is this ok??? */
274 bootdevnr = 0;
275
276 switch(rootdev->d_type) {
277 case DEVT_DISK:
278 /* pass in the BIOS device number of the current disk */
279 bi.bi_bios_dev = bd_unit2bios(rootdev->d_kind.biosdisk.unit);
280 bootdevnr = bd_getdev(rootdev);
281 if (bootdevnr != -1)
282 break;
283 printf("root device %s invalid\n", i386_fmtdev(rootdev));
284 return(EINVAL);
285
286 case DEVT_NET:
287 break;
288
289 default:
290 printf("WARNING - don't know how to boot from device type %d\n", rootdev->d_type);
291 }
292 free(rootdev);
293 *bootdevp = bootdevnr;
294
295 /* legacy bootinfo structure */
296 bi.bi_version = BOOTINFO_VERSION;
297 bi.bi_kernelname = 0; /* XXX char * -> kernel name */
298 bi.bi_nfs_diskless = 0; /* struct nfs_diskless * */
299 bi.bi_n_bios_used = 0; /* XXX would have to hook biosdisk driver for these */
300 for (i = 0; i < N_BIOS_GEOM; i++)
301 bi.bi_bios_geom[i] = bd_getbigeom(i);
302 bi.bi_size = sizeof(bi);
303 bi.bi_memsizes_valid = 1;
304 bi.bi_basemem = bios_basemem / 1024;
305 bi.bi_extmem = bios_extmem / 1024;
306
307 /* find the last module in the chain */
308 addr = 0;
309 for (xp = file_findfile(NULL, NULL); xp != NULL; xp = xp->f_next) {
310 if (addr < (xp->f_addr + xp->f_size))
311 addr = xp->f_addr + xp->f_size;
312 }
313 /* pad to a page boundary */
314 pad = (u_int)addr & PAGE_MASK;
315 if (pad != 0) {
316 pad = PAGE_SIZE - pad;
317 addr += pad;
318 }
319
320 /* copy our environment */
321 bi.bi_envp = addr;
322 addr = bi_copyenv(addr);
323
324 /* pad to a page boundary */
325 pad = (u_int)addr & PAGE_MASK;
326 if (pad != 0) {
327 pad = PAGE_SIZE - pad;
328 addr += pad;
329 }
330 /* copy module list and metadata */
331 bi.bi_modulep = addr;
332 addr = bi_copymodules(addr);
333
334 /* all done copying stuff in, save end of loaded object space */
335 bi.bi_kernend = addr;
336
337 *howtop |= RB_BOOTINFO; /* it's there now */
338
339 /*
340 * Get the kernel name, strip off any device prefix.
341 */
342 kernelname = getenv("kernelname");
343 i386_getdev(NULL, kernelname, &kernelpath);
344 bi.bi_kernelname = VTOP(kernelpath);
345 *bip = VTOP(&bi);
346
347 return(0);
348}
161 *
162 * Currently, the following data are saved:
163 *
164 * MOD_NAME (variable) module name (string)
165 * MOD_TYPE (variable) module type (string)
166 * MOD_ARGS (variable) module parameters (string)
167 * MOD_ADDR sizeof(vm_offset_t) module load address
168 * MOD_SIZE sizeof(size_t) module size
169 * MOD_METADATA (variable) type-specific metadata
170 */
171#define COPY32(v, a) { \
172 u_int32_t x = (v); \
173 i386_copyin(&x, a, sizeof(x)); \
174 a += sizeof(x); \
175}
176
177#define MOD_STR(t, a, s) { \
178 COPY32(t, a); \
179 COPY32(strlen(s) + 1, a); \
180 i386_copyin(s, a, strlen(s) + 1); \
181 a += roundup(strlen(s) + 1, sizeof(u_long));\
182}
183
184#define MOD_NAME(a, s) MOD_STR(MODINFO_NAME, a, s)
185#define MOD_TYPE(a, s) MOD_STR(MODINFO_TYPE, a, s)
186#define MOD_ARGS(a, s) MOD_STR(MODINFO_ARGS, a, s)
187
188#define MOD_VAR(t, a, s) { \
189 COPY32(t, a); \
190 COPY32(sizeof(s), a); \
191 i386_copyin(&s, a, sizeof(s)); \
192 a += roundup(sizeof(s), sizeof(u_long)); \
193}
194
195#define MOD_ADDR(a, s) MOD_VAR(MODINFO_ADDR, a, s)
196#define MOD_SIZE(a, s) MOD_VAR(MODINFO_SIZE, a, s)
197
198#define MOD_METADATA(a, mm) { \
199 COPY32(MODINFO_METADATA | mm->md_type, a); \
200 COPY32(mm->md_size, a); \
201 i386_copyin(mm->md_data, a, mm->md_size); \
202 a += roundup(mm->md_size, sizeof(u_long));\
203}
204
205#define MOD_END(a) { \
206 COPY32(MODINFO_END, a); \
207 COPY32(0, a); \
208}
209
210vm_offset_t
211bi_copymodules(vm_offset_t addr)
212{
213 struct preloaded_file *fp;
214 struct file_metadata *md;
215
216 /* start with the first module on the list, should be the kernel */
217 for (fp = file_findfile(NULL, NULL); fp != NULL; fp = fp->f_next) {
218
219 MOD_NAME(addr, fp->f_name); /* this field must come first */
220 MOD_TYPE(addr, fp->f_type);
221 if (fp->f_args)
222 MOD_ARGS(addr, fp->f_args);
223 MOD_ADDR(addr, fp->f_addr);
224 MOD_SIZE(addr, fp->f_size);
225 for (md = fp->f_metadata; md != NULL; md = md->md_next)
226 if (!(md->md_type & MODINFOMD_NOCOPY))
227 MOD_METADATA(addr, md);
228 }
229 MOD_END(addr);
230 return(addr);
231}
232
233/*
234 * Load the information expected by an i386 kernel.
235 *
236 * - The 'boothowto' argument is constructed
237 * - The 'bootdev' argument is constructed
238 * - The 'bootinfo' struct is constructed, and copied into the kernel space.
239 * - The kernel environment is copied into kernel space.
240 * - Module metadata are formatted and placed in kernel space.
241 */
242int
243bi_load(char *args, int *howtop, int *bootdevp, vm_offset_t *bip)
244{
245 struct preloaded_file *xp;
246 struct i386_devdesc *rootdev;
247 vm_offset_t addr;
248 char *rootdevname;
249 int bootdevnr, i;
250 u_int pad;
251 char *kernelname;
252 const char *kernelpath;
253
254 *howtop = bi_getboothowto(args);
255
256 /*
257 * Allow the environment variable 'rootdev' to override the supplied device
258 * This should perhaps go to MI code and/or have $rootdev tested/set by
259 * MI code before launching the kernel.
260 */
261 rootdevname = getenv("rootdev");
262 i386_getdev((void **)(&rootdev), rootdevname, NULL);
263 if (rootdev == NULL) { /* bad $rootdev/$currdev */
264 printf("can't determine root device\n");
265 return(EINVAL);
266 }
267
268 /* Try reading the /etc/fstab file to select the root device */
269 getrootmount(i386_fmtdev((void *)rootdev));
270
271 /* Do legacy rootdev guessing */
272
273 /* XXX - use a default bootdev of 0. Is this ok??? */
274 bootdevnr = 0;
275
276 switch(rootdev->d_type) {
277 case DEVT_DISK:
278 /* pass in the BIOS device number of the current disk */
279 bi.bi_bios_dev = bd_unit2bios(rootdev->d_kind.biosdisk.unit);
280 bootdevnr = bd_getdev(rootdev);
281 if (bootdevnr != -1)
282 break;
283 printf("root device %s invalid\n", i386_fmtdev(rootdev));
284 return(EINVAL);
285
286 case DEVT_NET:
287 break;
288
289 default:
290 printf("WARNING - don't know how to boot from device type %d\n", rootdev->d_type);
291 }
292 free(rootdev);
293 *bootdevp = bootdevnr;
294
295 /* legacy bootinfo structure */
296 bi.bi_version = BOOTINFO_VERSION;
297 bi.bi_kernelname = 0; /* XXX char * -> kernel name */
298 bi.bi_nfs_diskless = 0; /* struct nfs_diskless * */
299 bi.bi_n_bios_used = 0; /* XXX would have to hook biosdisk driver for these */
300 for (i = 0; i < N_BIOS_GEOM; i++)
301 bi.bi_bios_geom[i] = bd_getbigeom(i);
302 bi.bi_size = sizeof(bi);
303 bi.bi_memsizes_valid = 1;
304 bi.bi_basemem = bios_basemem / 1024;
305 bi.bi_extmem = bios_extmem / 1024;
306
307 /* find the last module in the chain */
308 addr = 0;
309 for (xp = file_findfile(NULL, NULL); xp != NULL; xp = xp->f_next) {
310 if (addr < (xp->f_addr + xp->f_size))
311 addr = xp->f_addr + xp->f_size;
312 }
313 /* pad to a page boundary */
314 pad = (u_int)addr & PAGE_MASK;
315 if (pad != 0) {
316 pad = PAGE_SIZE - pad;
317 addr += pad;
318 }
319
320 /* copy our environment */
321 bi.bi_envp = addr;
322 addr = bi_copyenv(addr);
323
324 /* pad to a page boundary */
325 pad = (u_int)addr & PAGE_MASK;
326 if (pad != 0) {
327 pad = PAGE_SIZE - pad;
328 addr += pad;
329 }
330 /* copy module list and metadata */
331 bi.bi_modulep = addr;
332 addr = bi_copymodules(addr);
333
334 /* all done copying stuff in, save end of loaded object space */
335 bi.bi_kernend = addr;
336
337 *howtop |= RB_BOOTINFO; /* it's there now */
338
339 /*
340 * Get the kernel name, strip off any device prefix.
341 */
342 kernelname = getenv("kernelname");
343 i386_getdev(NULL, kernelname, &kernelpath);
344 bi.bi_kernelname = VTOP(kernelpath);
345 *bip = VTOP(&bi);
346
347 return(0);
348}