1 | /* |
2 | * QEMU Executable loader |
3 | * |
4 | * Copyright (c) 2006 Fabrice Bellard |
5 | * |
6 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
7 | * of this software and associated documentation files (the "Software"), to deal |
8 | * in the Software without restriction, including without limitation the rights |
9 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
10 | * copies of the Software, and to permit persons to whom the Software is |
11 | * furnished to do so, subject to the following conditions: |
12 | * |
13 | * The above copyright notice and this permission notice shall be included in |
14 | * all copies or substantial portions of the Software. |
15 | * |
16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
19 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
21 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
22 | * THE SOFTWARE. |
23 | * |
24 | * Gunzip functionality in this file is derived from u-boot: |
25 | * |
26 | * (C) Copyright 2008 Semihalf |
27 | * |
28 | * (C) Copyright 2000-2005 |
29 | * Wolfgang Denk, DENX Software Engineering, wd@denx.de. |
30 | * |
31 | * This program is free software; you can redistribute it and/or |
32 | * modify it under the terms of the GNU General Public License as |
33 | * published by the Free Software Foundation; either version 2 of |
34 | * the License, or (at your option) any later version. |
35 | * |
36 | * This program is distributed in the hope that it will be useful, |
37 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
38 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
39 | * GNU General Public License for more details. |
40 | * |
41 | * You should have received a copy of the GNU General Public License along |
42 | * with this program; if not, see <http://www.gnu.org/licenses/>. |
43 | */ |
44 | |
45 | #include "qemu/osdep.h" |
46 | #include "qemu-common.h" |
47 | #include "qapi/error.h" |
48 | #include "hw/hw.h" |
49 | #include "disas/disas.h" |
50 | #include "migration/vmstate.h" |
51 | #include "monitor/monitor.h" |
52 | #include "sysemu/reset.h" |
53 | #include "sysemu/sysemu.h" |
54 | #include "uboot_image.h" |
55 | #include "hw/loader.h" |
56 | #include "hw/nvram/fw_cfg.h" |
57 | #include "exec/memory.h" |
58 | #include "exec/address-spaces.h" |
59 | #include "hw/boards.h" |
60 | #include "qemu/cutils.h" |
61 | #include "sysemu/runstate.h" |
62 | |
63 | #include <zlib.h> |
64 | |
65 | static int roms_loaded; |
66 | |
67 | /* return the size or -1 if error */ |
68 | int64_t get_image_size(const char *filename) |
69 | { |
70 | int fd; |
71 | int64_t size; |
72 | fd = open(filename, O_RDONLY | O_BINARY); |
73 | if (fd < 0) |
74 | return -1; |
75 | size = lseek(fd, 0, SEEK_END); |
76 | close(fd); |
77 | return size; |
78 | } |
79 | |
80 | /* return the size or -1 if error */ |
81 | ssize_t load_image_size(const char *filename, void *addr, size_t size) |
82 | { |
83 | int fd; |
84 | ssize_t actsize, l = 0; |
85 | |
86 | fd = open(filename, O_RDONLY | O_BINARY); |
87 | if (fd < 0) { |
88 | return -1; |
89 | } |
90 | |
91 | while ((actsize = read(fd, addr + l, size - l)) > 0) { |
92 | l += actsize; |
93 | } |
94 | |
95 | close(fd); |
96 | |
97 | return actsize < 0 ? -1 : l; |
98 | } |
99 | |
100 | /* read()-like version */ |
101 | ssize_t read_targphys(const char *name, |
102 | int fd, hwaddr dst_addr, size_t nbytes) |
103 | { |
104 | uint8_t *buf; |
105 | ssize_t did; |
106 | |
107 | buf = g_malloc(nbytes); |
108 | did = read(fd, buf, nbytes); |
109 | if (did > 0) |
110 | rom_add_blob_fixed("read" , buf, did, dst_addr); |
111 | g_free(buf); |
112 | return did; |
113 | } |
114 | |
115 | int load_image_targphys(const char *filename, |
116 | hwaddr addr, uint64_t max_sz) |
117 | { |
118 | return load_image_targphys_as(filename, addr, max_sz, NULL); |
119 | } |
120 | |
121 | /* return the size or -1 if error */ |
122 | int load_image_targphys_as(const char *filename, |
123 | hwaddr addr, uint64_t max_sz, AddressSpace *as) |
124 | { |
125 | int size; |
126 | |
127 | size = get_image_size(filename); |
128 | if (size < 0 || size > max_sz) { |
129 | return -1; |
130 | } |
131 | if (size > 0) { |
132 | if (rom_add_file_fixed_as(filename, addr, -1, as) < 0) { |
133 | return -1; |
134 | } |
135 | } |
136 | return size; |
137 | } |
138 | |
139 | int load_image_mr(const char *filename, MemoryRegion *mr) |
140 | { |
141 | int size; |
142 | |
143 | if (!memory_access_is_direct(mr, false)) { |
144 | /* Can only load an image into RAM or ROM */ |
145 | return -1; |
146 | } |
147 | |
148 | size = get_image_size(filename); |
149 | |
150 | if (size < 0 || size > memory_region_size(mr)) { |
151 | return -1; |
152 | } |
153 | if (size > 0) { |
154 | if (rom_add_file_mr(filename, mr, -1) < 0) { |
155 | return -1; |
156 | } |
157 | } |
158 | return size; |
159 | } |
160 | |
161 | void pstrcpy_targphys(const char *name, hwaddr dest, int buf_size, |
162 | const char *source) |
163 | { |
164 | const char *nulp; |
165 | char *ptr; |
166 | |
167 | if (buf_size <= 0) return; |
168 | nulp = memchr(source, 0, buf_size); |
169 | if (nulp) { |
170 | rom_add_blob_fixed(name, source, (nulp - source) + 1, dest); |
171 | } else { |
172 | rom_add_blob_fixed(name, source, buf_size, dest); |
173 | ptr = rom_ptr(dest + buf_size - 1, sizeof(*ptr)); |
174 | *ptr = 0; |
175 | } |
176 | } |
177 | |
178 | /* A.OUT loader */ |
179 | |
180 | struct exec |
181 | { |
182 | uint32_t a_info; /* Use macros N_MAGIC, etc for access */ |
183 | uint32_t a_text; /* length of text, in bytes */ |
184 | uint32_t a_data; /* length of data, in bytes */ |
185 | uint32_t a_bss; /* length of uninitialized data area, in bytes */ |
186 | uint32_t a_syms; /* length of symbol table data in file, in bytes */ |
187 | uint32_t a_entry; /* start address */ |
188 | uint32_t a_trsize; /* length of relocation info for text, in bytes */ |
189 | uint32_t a_drsize; /* length of relocation info for data, in bytes */ |
190 | }; |
191 | |
192 | static void bswap_ahdr(struct exec *e) |
193 | { |
194 | bswap32s(&e->a_info); |
195 | bswap32s(&e->a_text); |
196 | bswap32s(&e->a_data); |
197 | bswap32s(&e->a_bss); |
198 | bswap32s(&e->a_syms); |
199 | bswap32s(&e->a_entry); |
200 | bswap32s(&e->a_trsize); |
201 | bswap32s(&e->a_drsize); |
202 | } |
203 | |
204 | #define N_MAGIC(exec) ((exec).a_info & 0xffff) |
205 | #define OMAGIC 0407 |
206 | #define NMAGIC 0410 |
207 | #define ZMAGIC 0413 |
208 | #define QMAGIC 0314 |
209 | #define _N_HDROFF(x) (1024 - sizeof (struct exec)) |
210 | #define N_TXTOFF(x) \ |
211 | (N_MAGIC(x) == ZMAGIC ? _N_HDROFF((x)) + sizeof (struct exec) : \ |
212 | (N_MAGIC(x) == QMAGIC ? 0 : sizeof (struct exec))) |
213 | #define N_TXTADDR(x, target_page_size) (N_MAGIC(x) == QMAGIC ? target_page_size : 0) |
214 | #define _N_SEGMENT_ROUND(x, target_page_size) (((x) + target_page_size - 1) & ~(target_page_size - 1)) |
215 | |
216 | #define _N_TXTENDADDR(x, target_page_size) (N_TXTADDR(x, target_page_size)+(x).a_text) |
217 | |
218 | #define N_DATADDR(x, target_page_size) \ |
219 | (N_MAGIC(x)==OMAGIC? (_N_TXTENDADDR(x, target_page_size)) \ |
220 | : (_N_SEGMENT_ROUND (_N_TXTENDADDR(x, target_page_size), target_page_size))) |
221 | |
222 | |
223 | int load_aout(const char *filename, hwaddr addr, int max_sz, |
224 | int bswap_needed, hwaddr target_page_size) |
225 | { |
226 | int fd; |
227 | ssize_t size, ret; |
228 | struct exec e; |
229 | uint32_t magic; |
230 | |
231 | fd = open(filename, O_RDONLY | O_BINARY); |
232 | if (fd < 0) |
233 | return -1; |
234 | |
235 | size = read(fd, &e, sizeof(e)); |
236 | if (size < 0) |
237 | goto fail; |
238 | |
239 | if (bswap_needed) { |
240 | bswap_ahdr(&e); |
241 | } |
242 | |
243 | magic = N_MAGIC(e); |
244 | switch (magic) { |
245 | case ZMAGIC: |
246 | case QMAGIC: |
247 | case OMAGIC: |
248 | if (e.a_text + e.a_data > max_sz) |
249 | goto fail; |
250 | lseek(fd, N_TXTOFF(e), SEEK_SET); |
251 | size = read_targphys(filename, fd, addr, e.a_text + e.a_data); |
252 | if (size < 0) |
253 | goto fail; |
254 | break; |
255 | case NMAGIC: |
256 | if (N_DATADDR(e, target_page_size) + e.a_data > max_sz) |
257 | goto fail; |
258 | lseek(fd, N_TXTOFF(e), SEEK_SET); |
259 | size = read_targphys(filename, fd, addr, e.a_text); |
260 | if (size < 0) |
261 | goto fail; |
262 | ret = read_targphys(filename, fd, addr + N_DATADDR(e, target_page_size), |
263 | e.a_data); |
264 | if (ret < 0) |
265 | goto fail; |
266 | size += ret; |
267 | break; |
268 | default: |
269 | goto fail; |
270 | } |
271 | close(fd); |
272 | return size; |
273 | fail: |
274 | close(fd); |
275 | return -1; |
276 | } |
277 | |
278 | /* ELF loader */ |
279 | |
280 | static void *load_at(int fd, off_t offset, size_t size) |
281 | { |
282 | void *ptr; |
283 | if (lseek(fd, offset, SEEK_SET) < 0) |
284 | return NULL; |
285 | ptr = g_malloc(size); |
286 | if (read(fd, ptr, size) != size) { |
287 | g_free(ptr); |
288 | return NULL; |
289 | } |
290 | return ptr; |
291 | } |
292 | |
293 | #ifdef ELF_CLASS |
294 | #undef ELF_CLASS |
295 | #endif |
296 | |
297 | #define ELF_CLASS ELFCLASS32 |
298 | #include "elf.h" |
299 | |
300 | #define SZ 32 |
301 | #define elf_word uint32_t |
302 | #define elf_sword int32_t |
303 | #define bswapSZs bswap32s |
304 | #include "hw/elf_ops.h" |
305 | |
306 | #undef elfhdr |
307 | #undef elf_phdr |
308 | #undef elf_shdr |
309 | #undef elf_sym |
310 | #undef elf_rela |
311 | #undef elf_note |
312 | #undef elf_word |
313 | #undef elf_sword |
314 | #undef bswapSZs |
315 | #undef SZ |
316 | #define elfhdr elf64_hdr |
317 | #define elf_phdr elf64_phdr |
318 | #define elf_note elf64_note |
319 | #define elf_shdr elf64_shdr |
320 | #define elf_sym elf64_sym |
321 | #define elf_rela elf64_rela |
322 | #define elf_word uint64_t |
323 | #define elf_sword int64_t |
324 | #define bswapSZs bswap64s |
325 | #define SZ 64 |
326 | #include "hw/elf_ops.h" |
327 | |
328 | const char *load_elf_strerror(int error) |
329 | { |
330 | switch (error) { |
331 | case 0: |
332 | return "No error" ; |
333 | case ELF_LOAD_FAILED: |
334 | return "Failed to load ELF" ; |
335 | case ELF_LOAD_NOT_ELF: |
336 | return "The image is not ELF" ; |
337 | case ELF_LOAD_WRONG_ARCH: |
338 | return "The image is from incompatible architecture" ; |
339 | case ELF_LOAD_WRONG_ENDIAN: |
340 | return "The image has incorrect endianness" ; |
341 | default: |
342 | return "Unknown error" ; |
343 | } |
344 | } |
345 | |
346 | void load_elf_hdr(const char *filename, void *hdr, bool *is64, Error **errp) |
347 | { |
348 | int fd; |
349 | uint8_t e_ident_local[EI_NIDENT]; |
350 | uint8_t *e_ident; |
351 | size_t hdr_size, off; |
352 | bool is64l; |
353 | |
354 | if (!hdr) { |
355 | hdr = e_ident_local; |
356 | } |
357 | e_ident = hdr; |
358 | |
359 | fd = open(filename, O_RDONLY | O_BINARY); |
360 | if (fd < 0) { |
361 | error_setg_errno(errp, errno, "Failed to open file: %s" , filename); |
362 | return; |
363 | } |
364 | if (read(fd, hdr, EI_NIDENT) != EI_NIDENT) { |
365 | error_setg_errno(errp, errno, "Failed to read file: %s" , filename); |
366 | goto fail; |
367 | } |
368 | if (e_ident[0] != ELFMAG0 || |
369 | e_ident[1] != ELFMAG1 || |
370 | e_ident[2] != ELFMAG2 || |
371 | e_ident[3] != ELFMAG3) { |
372 | error_setg(errp, "Bad ELF magic" ); |
373 | goto fail; |
374 | } |
375 | |
376 | is64l = e_ident[EI_CLASS] == ELFCLASS64; |
377 | hdr_size = is64l ? sizeof(Elf64_Ehdr) : sizeof(Elf32_Ehdr); |
378 | if (is64) { |
379 | *is64 = is64l; |
380 | } |
381 | |
382 | off = EI_NIDENT; |
383 | while (hdr != e_ident_local && off < hdr_size) { |
384 | size_t br = read(fd, hdr + off, hdr_size - off); |
385 | switch (br) { |
386 | case 0: |
387 | error_setg(errp, "File too short: %s" , filename); |
388 | goto fail; |
389 | case -1: |
390 | error_setg_errno(errp, errno, "Failed to read file: %s" , |
391 | filename); |
392 | goto fail; |
393 | } |
394 | off += br; |
395 | } |
396 | |
397 | fail: |
398 | close(fd); |
399 | } |
400 | |
401 | /* return < 0 if error, otherwise the number of bytes loaded in memory */ |
402 | int load_elf(const char *filename, |
403 | uint64_t (*elf_note_fn)(void *, void *, bool), |
404 | uint64_t (*translate_fn)(void *, uint64_t), |
405 | void *translate_opaque, uint64_t *pentry, uint64_t *lowaddr, |
406 | uint64_t *highaddr, int big_endian, int elf_machine, |
407 | int clear_lsb, int data_swab) |
408 | { |
409 | return load_elf_as(filename, elf_note_fn, translate_fn, translate_opaque, |
410 | pentry, lowaddr, highaddr, big_endian, elf_machine, |
411 | clear_lsb, data_swab, NULL); |
412 | } |
413 | |
414 | /* return < 0 if error, otherwise the number of bytes loaded in memory */ |
415 | int load_elf_as(const char *filename, |
416 | uint64_t (*elf_note_fn)(void *, void *, bool), |
417 | uint64_t (*translate_fn)(void *, uint64_t), |
418 | void *translate_opaque, uint64_t *pentry, uint64_t *lowaddr, |
419 | uint64_t *highaddr, int big_endian, int elf_machine, |
420 | int clear_lsb, int data_swab, AddressSpace *as) |
421 | { |
422 | return load_elf_ram(filename, elf_note_fn, translate_fn, translate_opaque, |
423 | pentry, lowaddr, highaddr, big_endian, elf_machine, |
424 | clear_lsb, data_swab, as, true); |
425 | } |
426 | |
427 | /* return < 0 if error, otherwise the number of bytes loaded in memory */ |
428 | int load_elf_ram(const char *filename, |
429 | uint64_t (*elf_note_fn)(void *, void *, bool), |
430 | uint64_t (*translate_fn)(void *, uint64_t), |
431 | void *translate_opaque, uint64_t *pentry, uint64_t *lowaddr, |
432 | uint64_t *highaddr, int big_endian, int elf_machine, |
433 | int clear_lsb, int data_swab, AddressSpace *as, |
434 | bool load_rom) |
435 | { |
436 | return load_elf_ram_sym(filename, elf_note_fn, |
437 | translate_fn, translate_opaque, |
438 | pentry, lowaddr, highaddr, big_endian, |
439 | elf_machine, clear_lsb, data_swab, as, |
440 | load_rom, NULL); |
441 | } |
442 | |
443 | /* return < 0 if error, otherwise the number of bytes loaded in memory */ |
444 | int load_elf_ram_sym(const char *filename, |
445 | uint64_t (*elf_note_fn)(void *, void *, bool), |
446 | uint64_t (*translate_fn)(void *, uint64_t), |
447 | void *translate_opaque, uint64_t *pentry, |
448 | uint64_t *lowaddr, uint64_t *highaddr, int big_endian, |
449 | int elf_machine, int clear_lsb, int data_swab, |
450 | AddressSpace *as, bool load_rom, symbol_fn_t sym_cb) |
451 | { |
452 | int fd, data_order, target_data_order, must_swab, ret = ELF_LOAD_FAILED; |
453 | uint8_t e_ident[EI_NIDENT]; |
454 | |
455 | fd = open(filename, O_RDONLY | O_BINARY); |
456 | if (fd < 0) { |
457 | perror(filename); |
458 | return -1; |
459 | } |
460 | if (read(fd, e_ident, sizeof(e_ident)) != sizeof(e_ident)) |
461 | goto fail; |
462 | if (e_ident[0] != ELFMAG0 || |
463 | e_ident[1] != ELFMAG1 || |
464 | e_ident[2] != ELFMAG2 || |
465 | e_ident[3] != ELFMAG3) { |
466 | ret = ELF_LOAD_NOT_ELF; |
467 | goto fail; |
468 | } |
469 | #ifdef HOST_WORDS_BIGENDIAN |
470 | data_order = ELFDATA2MSB; |
471 | #else |
472 | data_order = ELFDATA2LSB; |
473 | #endif |
474 | must_swab = data_order != e_ident[EI_DATA]; |
475 | if (big_endian) { |
476 | target_data_order = ELFDATA2MSB; |
477 | } else { |
478 | target_data_order = ELFDATA2LSB; |
479 | } |
480 | |
481 | if (target_data_order != e_ident[EI_DATA]) { |
482 | ret = ELF_LOAD_WRONG_ENDIAN; |
483 | goto fail; |
484 | } |
485 | |
486 | lseek(fd, 0, SEEK_SET); |
487 | if (e_ident[EI_CLASS] == ELFCLASS64) { |
488 | ret = load_elf64(filename, fd, elf_note_fn, |
489 | translate_fn, translate_opaque, must_swab, |
490 | pentry, lowaddr, highaddr, elf_machine, clear_lsb, |
491 | data_swab, as, load_rom, sym_cb); |
492 | } else { |
493 | ret = load_elf32(filename, fd, elf_note_fn, |
494 | translate_fn, translate_opaque, must_swab, |
495 | pentry, lowaddr, highaddr, elf_machine, clear_lsb, |
496 | data_swab, as, load_rom, sym_cb); |
497 | } |
498 | |
499 | fail: |
500 | close(fd); |
501 | return ret; |
502 | } |
503 | |
504 | static void (uboot_image_header_t *hdr) |
505 | { |
506 | #ifndef HOST_WORDS_BIGENDIAN |
507 | bswap32s(&hdr->ih_magic); |
508 | bswap32s(&hdr->ih_hcrc); |
509 | bswap32s(&hdr->ih_time); |
510 | bswap32s(&hdr->ih_size); |
511 | bswap32s(&hdr->ih_load); |
512 | bswap32s(&hdr->ih_ep); |
513 | bswap32s(&hdr->ih_dcrc); |
514 | #endif |
515 | } |
516 | |
517 | |
518 | #define ZALLOC_ALIGNMENT 16 |
519 | |
520 | static void *zalloc(void *x, unsigned items, unsigned size) |
521 | { |
522 | void *p; |
523 | |
524 | size *= items; |
525 | size = (size + ZALLOC_ALIGNMENT - 1) & ~(ZALLOC_ALIGNMENT - 1); |
526 | |
527 | p = g_malloc(size); |
528 | |
529 | return (p); |
530 | } |
531 | |
532 | static void zfree(void *x, void *addr) |
533 | { |
534 | g_free(addr); |
535 | } |
536 | |
537 | |
538 | #define HEAD_CRC 2 |
539 | #define 4 |
540 | #define ORIG_NAME 8 |
541 | #define 0x10 |
542 | #define RESERVED 0xe0 |
543 | |
544 | #define DEFLATED 8 |
545 | |
546 | ssize_t gunzip(void *dst, size_t dstlen, uint8_t *src, size_t srclen) |
547 | { |
548 | z_stream s; |
549 | ssize_t dstbytes; |
550 | int r, i, flags; |
551 | |
552 | /* skip header */ |
553 | i = 10; |
554 | flags = src[3]; |
555 | if (src[2] != DEFLATED || (flags & RESERVED) != 0) { |
556 | puts ("Error: Bad gzipped data\n" ); |
557 | return -1; |
558 | } |
559 | if ((flags & EXTRA_FIELD) != 0) |
560 | i = 12 + src[10] + (src[11] << 8); |
561 | if ((flags & ORIG_NAME) != 0) |
562 | while (src[i++] != 0) |
563 | ; |
564 | if ((flags & COMMENT) != 0) |
565 | while (src[i++] != 0) |
566 | ; |
567 | if ((flags & HEAD_CRC) != 0) |
568 | i += 2; |
569 | if (i >= srclen) { |
570 | puts ("Error: gunzip out of data in header\n" ); |
571 | return -1; |
572 | } |
573 | |
574 | s.zalloc = zalloc; |
575 | s.zfree = zfree; |
576 | |
577 | r = inflateInit2(&s, -MAX_WBITS); |
578 | if (r != Z_OK) { |
579 | printf ("Error: inflateInit2() returned %d\n" , r); |
580 | return (-1); |
581 | } |
582 | s.next_in = src + i; |
583 | s.avail_in = srclen - i; |
584 | s.next_out = dst; |
585 | s.avail_out = dstlen; |
586 | r = inflate(&s, Z_FINISH); |
587 | if (r != Z_OK && r != Z_STREAM_END) { |
588 | printf ("Error: inflate() returned %d\n" , r); |
589 | return -1; |
590 | } |
591 | dstbytes = s.next_out - (unsigned char *) dst; |
592 | inflateEnd(&s); |
593 | |
594 | return dstbytes; |
595 | } |
596 | |
597 | /* Load a U-Boot image. */ |
598 | static int load_uboot_image(const char *filename, hwaddr *ep, hwaddr *loadaddr, |
599 | int *is_linux, uint8_t image_type, |
600 | uint64_t (*translate_fn)(void *, uint64_t), |
601 | void *translate_opaque, AddressSpace *as) |
602 | { |
603 | int fd; |
604 | int size; |
605 | hwaddr address; |
606 | uboot_image_header_t h; |
607 | uboot_image_header_t *hdr = &h; |
608 | uint8_t *data = NULL; |
609 | int ret = -1; |
610 | int do_uncompress = 0; |
611 | |
612 | fd = open(filename, O_RDONLY | O_BINARY); |
613 | if (fd < 0) |
614 | return -1; |
615 | |
616 | size = read(fd, hdr, sizeof(uboot_image_header_t)); |
617 | if (size < sizeof(uboot_image_header_t)) { |
618 | goto out; |
619 | } |
620 | |
621 | bswap_uboot_header(hdr); |
622 | |
623 | if (hdr->ih_magic != IH_MAGIC) |
624 | goto out; |
625 | |
626 | if (hdr->ih_type != image_type) { |
627 | if (!(image_type == IH_TYPE_KERNEL && |
628 | hdr->ih_type == IH_TYPE_KERNEL_NOLOAD)) { |
629 | fprintf(stderr, "Wrong image type %d, expected %d\n" , hdr->ih_type, |
630 | image_type); |
631 | goto out; |
632 | } |
633 | } |
634 | |
635 | /* TODO: Implement other image types. */ |
636 | switch (hdr->ih_type) { |
637 | case IH_TYPE_KERNEL_NOLOAD: |
638 | if (!loadaddr || *loadaddr == LOAD_UIMAGE_LOADADDR_INVALID) { |
639 | fprintf(stderr, "this image format (kernel_noload) cannot be " |
640 | "loaded on this machine type" ); |
641 | goto out; |
642 | } |
643 | |
644 | hdr->ih_load = *loadaddr + sizeof(*hdr); |
645 | hdr->ih_ep += hdr->ih_load; |
646 | /* fall through */ |
647 | case IH_TYPE_KERNEL: |
648 | address = hdr->ih_load; |
649 | if (translate_fn) { |
650 | address = translate_fn(translate_opaque, address); |
651 | } |
652 | if (loadaddr) { |
653 | *loadaddr = hdr->ih_load; |
654 | } |
655 | |
656 | switch (hdr->ih_comp) { |
657 | case IH_COMP_NONE: |
658 | break; |
659 | case IH_COMP_GZIP: |
660 | do_uncompress = 1; |
661 | break; |
662 | default: |
663 | fprintf(stderr, |
664 | "Unable to load u-boot images with compression type %d\n" , |
665 | hdr->ih_comp); |
666 | goto out; |
667 | } |
668 | |
669 | if (ep) { |
670 | *ep = hdr->ih_ep; |
671 | } |
672 | |
673 | /* TODO: Check CPU type. */ |
674 | if (is_linux) { |
675 | if (hdr->ih_os == IH_OS_LINUX) { |
676 | *is_linux = 1; |
677 | } else { |
678 | *is_linux = 0; |
679 | } |
680 | } |
681 | |
682 | break; |
683 | case IH_TYPE_RAMDISK: |
684 | address = *loadaddr; |
685 | break; |
686 | default: |
687 | fprintf(stderr, "Unsupported u-boot image type %d\n" , hdr->ih_type); |
688 | goto out; |
689 | } |
690 | |
691 | data = g_malloc(hdr->ih_size); |
692 | |
693 | if (read(fd, data, hdr->ih_size) != hdr->ih_size) { |
694 | fprintf(stderr, "Error reading file\n" ); |
695 | goto out; |
696 | } |
697 | |
698 | if (do_uncompress) { |
699 | uint8_t *compressed_data; |
700 | size_t max_bytes; |
701 | ssize_t bytes; |
702 | |
703 | compressed_data = data; |
704 | max_bytes = UBOOT_MAX_GUNZIP_BYTES; |
705 | data = g_malloc(max_bytes); |
706 | |
707 | bytes = gunzip(data, max_bytes, compressed_data, hdr->ih_size); |
708 | g_free(compressed_data); |
709 | if (bytes < 0) { |
710 | fprintf(stderr, "Unable to decompress gzipped image!\n" ); |
711 | goto out; |
712 | } |
713 | hdr->ih_size = bytes; |
714 | } |
715 | |
716 | rom_add_blob_fixed_as(filename, data, hdr->ih_size, address, as); |
717 | |
718 | ret = hdr->ih_size; |
719 | |
720 | out: |
721 | g_free(data); |
722 | close(fd); |
723 | return ret; |
724 | } |
725 | |
726 | int load_uimage(const char *filename, hwaddr *ep, hwaddr *loadaddr, |
727 | int *is_linux, |
728 | uint64_t (*translate_fn)(void *, uint64_t), |
729 | void *translate_opaque) |
730 | { |
731 | return load_uboot_image(filename, ep, loadaddr, is_linux, IH_TYPE_KERNEL, |
732 | translate_fn, translate_opaque, NULL); |
733 | } |
734 | |
735 | int load_uimage_as(const char *filename, hwaddr *ep, hwaddr *loadaddr, |
736 | int *is_linux, |
737 | uint64_t (*translate_fn)(void *, uint64_t), |
738 | void *translate_opaque, AddressSpace *as) |
739 | { |
740 | return load_uboot_image(filename, ep, loadaddr, is_linux, IH_TYPE_KERNEL, |
741 | translate_fn, translate_opaque, as); |
742 | } |
743 | |
744 | /* Load a ramdisk. */ |
745 | int load_ramdisk(const char *filename, hwaddr addr, uint64_t max_sz) |
746 | { |
747 | return load_ramdisk_as(filename, addr, max_sz, NULL); |
748 | } |
749 | |
750 | int load_ramdisk_as(const char *filename, hwaddr addr, uint64_t max_sz, |
751 | AddressSpace *as) |
752 | { |
753 | return load_uboot_image(filename, NULL, &addr, NULL, IH_TYPE_RAMDISK, |
754 | NULL, NULL, as); |
755 | } |
756 | |
757 | /* Load a gzip-compressed kernel to a dynamically allocated buffer. */ |
758 | int load_image_gzipped_buffer(const char *filename, uint64_t max_sz, |
759 | uint8_t **buffer) |
760 | { |
761 | uint8_t *compressed_data = NULL; |
762 | uint8_t *data = NULL; |
763 | gsize len; |
764 | ssize_t bytes; |
765 | int ret = -1; |
766 | |
767 | if (!g_file_get_contents(filename, (char **) &compressed_data, &len, |
768 | NULL)) { |
769 | goto out; |
770 | } |
771 | |
772 | /* Is it a gzip-compressed file? */ |
773 | if (len < 2 || |
774 | compressed_data[0] != 0x1f || |
775 | compressed_data[1] != 0x8b) { |
776 | goto out; |
777 | } |
778 | |
779 | if (max_sz > LOAD_IMAGE_MAX_GUNZIP_BYTES) { |
780 | max_sz = LOAD_IMAGE_MAX_GUNZIP_BYTES; |
781 | } |
782 | |
783 | data = g_malloc(max_sz); |
784 | bytes = gunzip(data, max_sz, compressed_data, len); |
785 | if (bytes < 0) { |
786 | fprintf(stderr, "%s: unable to decompress gzipped kernel file\n" , |
787 | filename); |
788 | goto out; |
789 | } |
790 | |
791 | /* trim to actual size and return to caller */ |
792 | *buffer = g_realloc(data, bytes); |
793 | ret = bytes; |
794 | /* ownership has been transferred to caller */ |
795 | data = NULL; |
796 | |
797 | out: |
798 | g_free(compressed_data); |
799 | g_free(data); |
800 | return ret; |
801 | } |
802 | |
803 | /* Load a gzip-compressed kernel. */ |
804 | int load_image_gzipped(const char *filename, hwaddr addr, uint64_t max_sz) |
805 | { |
806 | int bytes; |
807 | uint8_t *data; |
808 | |
809 | bytes = load_image_gzipped_buffer(filename, max_sz, &data); |
810 | if (bytes != -1) { |
811 | rom_add_blob_fixed(filename, data, bytes, addr); |
812 | g_free(data); |
813 | } |
814 | return bytes; |
815 | } |
816 | |
817 | /* |
818 | * Functions for reboot-persistent memory regions. |
819 | * - used for vga bios and option roms. |
820 | * - also linux kernel (-kernel / -initrd). |
821 | */ |
822 | |
823 | typedef struct Rom Rom; |
824 | |
825 | struct Rom { |
826 | char *name; |
827 | char *path; |
828 | |
829 | /* datasize is the amount of memory allocated in "data". If datasize is less |
830 | * than romsize, it means that the area from datasize to romsize is filled |
831 | * with zeros. |
832 | */ |
833 | size_t romsize; |
834 | size_t datasize; |
835 | |
836 | uint8_t *data; |
837 | MemoryRegion *mr; |
838 | AddressSpace *as; |
839 | int isrom; |
840 | char *fw_dir; |
841 | char *fw_file; |
842 | GMappedFile *mapped_file; |
843 | |
844 | bool committed; |
845 | |
846 | hwaddr addr; |
847 | QTAILQ_ENTRY(Rom) next; |
848 | }; |
849 | |
850 | static FWCfgState *fw_cfg; |
851 | static QTAILQ_HEAD(, Rom) roms = QTAILQ_HEAD_INITIALIZER(roms); |
852 | |
853 | /* |
854 | * rom->data can be heap-allocated or memory-mapped (e.g. when added with |
855 | * rom_add_elf_program()) |
856 | */ |
857 | static void rom_free_data(Rom *rom) |
858 | { |
859 | if (rom->mapped_file) { |
860 | g_mapped_file_unref(rom->mapped_file); |
861 | rom->mapped_file = NULL; |
862 | } else { |
863 | g_free(rom->data); |
864 | } |
865 | |
866 | rom->data = NULL; |
867 | } |
868 | |
869 | static void rom_free(Rom *rom) |
870 | { |
871 | rom_free_data(rom); |
872 | g_free(rom->path); |
873 | g_free(rom->name); |
874 | g_free(rom->fw_dir); |
875 | g_free(rom->fw_file); |
876 | g_free(rom); |
877 | } |
878 | |
879 | static inline bool rom_order_compare(Rom *rom, Rom *item) |
880 | { |
881 | return ((uintptr_t)(void *)rom->as > (uintptr_t)(void *)item->as) || |
882 | (rom->as == item->as && rom->addr >= item->addr); |
883 | } |
884 | |
885 | static void rom_insert(Rom *rom) |
886 | { |
887 | Rom *item; |
888 | |
889 | if (roms_loaded) { |
890 | hw_error ("ROM images must be loaded at startup\n" ); |
891 | } |
892 | |
893 | /* The user didn't specify an address space, this is the default */ |
894 | if (!rom->as) { |
895 | rom->as = &address_space_memory; |
896 | } |
897 | |
898 | rom->committed = false; |
899 | |
900 | /* List is ordered by load address in the same address space */ |
901 | QTAILQ_FOREACH(item, &roms, next) { |
902 | if (rom_order_compare(rom, item)) { |
903 | continue; |
904 | } |
905 | QTAILQ_INSERT_BEFORE(item, rom, next); |
906 | return; |
907 | } |
908 | QTAILQ_INSERT_TAIL(&roms, rom, next); |
909 | } |
910 | |
911 | static void fw_cfg_resized(const char *id, uint64_t length, void *host) |
912 | { |
913 | if (fw_cfg) { |
914 | fw_cfg_modify_file(fw_cfg, id + strlen("/rom@" ), host, length); |
915 | } |
916 | } |
917 | |
918 | static void *rom_set_mr(Rom *rom, Object *owner, const char *name, bool ro) |
919 | { |
920 | void *data; |
921 | |
922 | rom->mr = g_malloc(sizeof(*rom->mr)); |
923 | memory_region_init_resizeable_ram(rom->mr, owner, name, |
924 | rom->datasize, rom->romsize, |
925 | fw_cfg_resized, |
926 | &error_fatal); |
927 | memory_region_set_readonly(rom->mr, ro); |
928 | vmstate_register_ram_global(rom->mr); |
929 | |
930 | data = memory_region_get_ram_ptr(rom->mr); |
931 | memcpy(data, rom->data, rom->datasize); |
932 | |
933 | return data; |
934 | } |
935 | |
936 | int rom_add_file(const char *file, const char *fw_dir, |
937 | hwaddr addr, int32_t bootindex, |
938 | bool option_rom, MemoryRegion *mr, |
939 | AddressSpace *as) |
940 | { |
941 | MachineClass *mc = MACHINE_GET_CLASS(qdev_get_machine()); |
942 | Rom *rom; |
943 | int rc, fd = -1; |
944 | char devpath[100]; |
945 | |
946 | if (as && mr) { |
947 | fprintf(stderr, "Specifying an Address Space and Memory Region is " \ |
948 | "not valid when loading a rom\n" ); |
949 | /* We haven't allocated anything so we don't need any cleanup */ |
950 | return -1; |
951 | } |
952 | |
953 | rom = g_malloc0(sizeof(*rom)); |
954 | rom->name = g_strdup(file); |
955 | rom->path = qemu_find_file(QEMU_FILE_TYPE_BIOS, rom->name); |
956 | rom->as = as; |
957 | if (rom->path == NULL) { |
958 | rom->path = g_strdup(file); |
959 | } |
960 | |
961 | fd = open(rom->path, O_RDONLY | O_BINARY); |
962 | if (fd == -1) { |
963 | fprintf(stderr, "Could not open option rom '%s': %s\n" , |
964 | rom->path, strerror(errno)); |
965 | goto err; |
966 | } |
967 | |
968 | if (fw_dir) { |
969 | rom->fw_dir = g_strdup(fw_dir); |
970 | rom->fw_file = g_strdup(file); |
971 | } |
972 | rom->addr = addr; |
973 | rom->romsize = lseek(fd, 0, SEEK_END); |
974 | if (rom->romsize == -1) { |
975 | fprintf(stderr, "rom: file %-20s: get size error: %s\n" , |
976 | rom->name, strerror(errno)); |
977 | goto err; |
978 | } |
979 | |
980 | rom->datasize = rom->romsize; |
981 | rom->data = g_malloc0(rom->datasize); |
982 | lseek(fd, 0, SEEK_SET); |
983 | rc = read(fd, rom->data, rom->datasize); |
984 | if (rc != rom->datasize) { |
985 | fprintf(stderr, "rom: file %-20s: read error: rc=%d (expected %zd)\n" , |
986 | rom->name, rc, rom->datasize); |
987 | goto err; |
988 | } |
989 | close(fd); |
990 | rom_insert(rom); |
991 | if (rom->fw_file && fw_cfg) { |
992 | const char *basename; |
993 | char fw_file_name[FW_CFG_MAX_FILE_PATH]; |
994 | void *data; |
995 | |
996 | basename = strrchr(rom->fw_file, '/'); |
997 | if (basename) { |
998 | basename++; |
999 | } else { |
1000 | basename = rom->fw_file; |
1001 | } |
1002 | snprintf(fw_file_name, sizeof(fw_file_name), "%s/%s" , rom->fw_dir, |
1003 | basename); |
1004 | snprintf(devpath, sizeof(devpath), "/rom@%s" , fw_file_name); |
1005 | |
1006 | if ((!option_rom || mc->option_rom_has_mr) && mc->rom_file_has_mr) { |
1007 | data = rom_set_mr(rom, OBJECT(fw_cfg), devpath, true); |
1008 | } else { |
1009 | data = rom->data; |
1010 | } |
1011 | |
1012 | fw_cfg_add_file(fw_cfg, fw_file_name, data, rom->romsize); |
1013 | } else { |
1014 | if (mr) { |
1015 | rom->mr = mr; |
1016 | snprintf(devpath, sizeof(devpath), "/rom@%s" , file); |
1017 | } else { |
1018 | snprintf(devpath, sizeof(devpath), "/rom@" TARGET_FMT_plx, addr); |
1019 | } |
1020 | } |
1021 | |
1022 | add_boot_device_path(bootindex, NULL, devpath); |
1023 | return 0; |
1024 | |
1025 | err: |
1026 | if (fd != -1) |
1027 | close(fd); |
1028 | |
1029 | rom_free(rom); |
1030 | return -1; |
1031 | } |
1032 | |
1033 | MemoryRegion *rom_add_blob(const char *name, const void *blob, size_t len, |
1034 | size_t max_len, hwaddr addr, const char *fw_file_name, |
1035 | FWCfgCallback fw_callback, void *callback_opaque, |
1036 | AddressSpace *as, bool read_only) |
1037 | { |
1038 | MachineClass *mc = MACHINE_GET_CLASS(qdev_get_machine()); |
1039 | Rom *rom; |
1040 | MemoryRegion *mr = NULL; |
1041 | |
1042 | rom = g_malloc0(sizeof(*rom)); |
1043 | rom->name = g_strdup(name); |
1044 | rom->as = as; |
1045 | rom->addr = addr; |
1046 | rom->romsize = max_len ? max_len : len; |
1047 | rom->datasize = len; |
1048 | g_assert(rom->romsize >= rom->datasize); |
1049 | rom->data = g_malloc0(rom->datasize); |
1050 | memcpy(rom->data, blob, len); |
1051 | rom_insert(rom); |
1052 | if (fw_file_name && fw_cfg) { |
1053 | char devpath[100]; |
1054 | void *data; |
1055 | |
1056 | if (read_only) { |
1057 | snprintf(devpath, sizeof(devpath), "/rom@%s" , fw_file_name); |
1058 | } else { |
1059 | snprintf(devpath, sizeof(devpath), "/ram@%s" , fw_file_name); |
1060 | } |
1061 | |
1062 | if (mc->rom_file_has_mr) { |
1063 | data = rom_set_mr(rom, OBJECT(fw_cfg), devpath, read_only); |
1064 | mr = rom->mr; |
1065 | } else { |
1066 | data = rom->data; |
1067 | } |
1068 | |
1069 | fw_cfg_add_file_callback(fw_cfg, fw_file_name, |
1070 | fw_callback, NULL, callback_opaque, |
1071 | data, rom->datasize, read_only); |
1072 | } |
1073 | return mr; |
1074 | } |
1075 | |
1076 | /* This function is specific for elf program because we don't need to allocate |
1077 | * all the rom. We just allocate the first part and the rest is just zeros. This |
1078 | * is why romsize and datasize are different. Also, this function takes its own |
1079 | * reference to "mapped_file", so we don't have to allocate and copy the buffer. |
1080 | */ |
1081 | int rom_add_elf_program(const char *name, GMappedFile *mapped_file, void *data, |
1082 | size_t datasize, size_t romsize, hwaddr addr, |
1083 | AddressSpace *as) |
1084 | { |
1085 | Rom *rom; |
1086 | |
1087 | rom = g_malloc0(sizeof(*rom)); |
1088 | rom->name = g_strdup(name); |
1089 | rom->addr = addr; |
1090 | rom->datasize = datasize; |
1091 | rom->romsize = romsize; |
1092 | rom->data = data; |
1093 | rom->as = as; |
1094 | |
1095 | if (mapped_file && data) { |
1096 | g_mapped_file_ref(mapped_file); |
1097 | rom->mapped_file = mapped_file; |
1098 | } |
1099 | |
1100 | rom_insert(rom); |
1101 | return 0; |
1102 | } |
1103 | |
1104 | int rom_add_vga(const char *file) |
1105 | { |
1106 | return rom_add_file(file, "vgaroms" , 0, -1, true, NULL, NULL); |
1107 | } |
1108 | |
1109 | int rom_add_option(const char *file, int32_t bootindex) |
1110 | { |
1111 | return rom_add_file(file, "genroms" , 0, bootindex, true, NULL, NULL); |
1112 | } |
1113 | |
1114 | static void rom_reset(void *unused) |
1115 | { |
1116 | Rom *rom; |
1117 | |
1118 | /* |
1119 | * We don't need to fill in the RAM with ROM data because we'll fill |
1120 | * the data in during the next incoming migration in all cases. Note |
1121 | * that some of those RAMs can actually be modified by the guest on ARM |
1122 | * so this is probably the only right thing to do here. |
1123 | */ |
1124 | if (runstate_check(RUN_STATE_INMIGRATE)) |
1125 | return; |
1126 | |
1127 | QTAILQ_FOREACH(rom, &roms, next) { |
1128 | if (rom->fw_file) { |
1129 | continue; |
1130 | } |
1131 | if (rom->data == NULL) { |
1132 | continue; |
1133 | } |
1134 | if (rom->mr) { |
1135 | void *host = memory_region_get_ram_ptr(rom->mr); |
1136 | memcpy(host, rom->data, rom->datasize); |
1137 | } else { |
1138 | address_space_write_rom(rom->as, rom->addr, MEMTXATTRS_UNSPECIFIED, |
1139 | rom->data, rom->datasize); |
1140 | } |
1141 | if (rom->isrom) { |
1142 | /* rom needs to be written only once */ |
1143 | rom_free_data(rom); |
1144 | } |
1145 | /* |
1146 | * The rom loader is really on the same level as firmware in the guest |
1147 | * shadowing a ROM into RAM. Such a shadowing mechanism needs to ensure |
1148 | * that the instruction cache for that new region is clear, so that the |
1149 | * CPU definitely fetches its instructions from the just written data. |
1150 | */ |
1151 | cpu_flush_icache_range(rom->addr, rom->datasize); |
1152 | } |
1153 | } |
1154 | |
1155 | int rom_check_and_register_reset(void) |
1156 | { |
1157 | hwaddr addr = 0; |
1158 | MemoryRegionSection section; |
1159 | Rom *rom; |
1160 | AddressSpace *as = NULL; |
1161 | |
1162 | QTAILQ_FOREACH(rom, &roms, next) { |
1163 | if (rom->fw_file) { |
1164 | continue; |
1165 | } |
1166 | if (!rom->mr) { |
1167 | if ((addr > rom->addr) && (as == rom->as)) { |
1168 | fprintf(stderr, "rom: requested regions overlap " |
1169 | "(rom %s. free=0x" TARGET_FMT_plx |
1170 | ", addr=0x" TARGET_FMT_plx ")\n" , |
1171 | rom->name, addr, rom->addr); |
1172 | return -1; |
1173 | } |
1174 | addr = rom->addr; |
1175 | addr += rom->romsize; |
1176 | as = rom->as; |
1177 | } |
1178 | section = memory_region_find(rom->mr ? rom->mr : get_system_memory(), |
1179 | rom->addr, 1); |
1180 | rom->isrom = int128_nz(section.size) && memory_region_is_rom(section.mr); |
1181 | memory_region_unref(section.mr); |
1182 | } |
1183 | qemu_register_reset(rom_reset, NULL); |
1184 | roms_loaded = 1; |
1185 | return 0; |
1186 | } |
1187 | |
1188 | void rom_set_fw(FWCfgState *f) |
1189 | { |
1190 | fw_cfg = f; |
1191 | } |
1192 | |
1193 | void rom_set_order_override(int order) |
1194 | { |
1195 | if (!fw_cfg) |
1196 | return; |
1197 | fw_cfg_set_order_override(fw_cfg, order); |
1198 | } |
1199 | |
1200 | void rom_reset_order_override(void) |
1201 | { |
1202 | if (!fw_cfg) |
1203 | return; |
1204 | fw_cfg_reset_order_override(fw_cfg); |
1205 | } |
1206 | |
1207 | void rom_transaction_begin(void) |
1208 | { |
1209 | Rom *rom; |
1210 | |
1211 | /* Ignore ROMs added without the transaction API */ |
1212 | QTAILQ_FOREACH(rom, &roms, next) { |
1213 | rom->committed = true; |
1214 | } |
1215 | } |
1216 | |
1217 | void rom_transaction_end(bool commit) |
1218 | { |
1219 | Rom *rom; |
1220 | Rom *tmp; |
1221 | |
1222 | QTAILQ_FOREACH_SAFE(rom, &roms, next, tmp) { |
1223 | if (rom->committed) { |
1224 | continue; |
1225 | } |
1226 | if (commit) { |
1227 | rom->committed = true; |
1228 | } else { |
1229 | QTAILQ_REMOVE(&roms, rom, next); |
1230 | rom_free(rom); |
1231 | } |
1232 | } |
1233 | } |
1234 | |
1235 | static Rom *find_rom(hwaddr addr, size_t size) |
1236 | { |
1237 | Rom *rom; |
1238 | |
1239 | QTAILQ_FOREACH(rom, &roms, next) { |
1240 | if (rom->fw_file) { |
1241 | continue; |
1242 | } |
1243 | if (rom->mr) { |
1244 | continue; |
1245 | } |
1246 | if (rom->addr > addr) { |
1247 | continue; |
1248 | } |
1249 | if (rom->addr + rom->romsize < addr + size) { |
1250 | continue; |
1251 | } |
1252 | return rom; |
1253 | } |
1254 | return NULL; |
1255 | } |
1256 | |
1257 | /* |
1258 | * Copies memory from registered ROMs to dest. Any memory that is contained in |
1259 | * a ROM between addr and addr + size is copied. Note that this can involve |
1260 | * multiple ROMs, which need not start at addr and need not end at addr + size. |
1261 | */ |
1262 | int rom_copy(uint8_t *dest, hwaddr addr, size_t size) |
1263 | { |
1264 | hwaddr end = addr + size; |
1265 | uint8_t *s, *d = dest; |
1266 | size_t l = 0; |
1267 | Rom *rom; |
1268 | |
1269 | QTAILQ_FOREACH(rom, &roms, next) { |
1270 | if (rom->fw_file) { |
1271 | continue; |
1272 | } |
1273 | if (rom->mr) { |
1274 | continue; |
1275 | } |
1276 | if (rom->addr + rom->romsize < addr) { |
1277 | continue; |
1278 | } |
1279 | if (rom->addr > end) { |
1280 | break; |
1281 | } |
1282 | |
1283 | d = dest + (rom->addr - addr); |
1284 | s = rom->data; |
1285 | l = rom->datasize; |
1286 | |
1287 | if ((d + l) > (dest + size)) { |
1288 | l = dest - d; |
1289 | } |
1290 | |
1291 | if (l > 0) { |
1292 | memcpy(d, s, l); |
1293 | } |
1294 | |
1295 | if (rom->romsize > rom->datasize) { |
1296 | /* If datasize is less than romsize, it means that we didn't |
1297 | * allocate all the ROM because the trailing data are only zeros. |
1298 | */ |
1299 | |
1300 | d += l; |
1301 | l = rom->romsize - rom->datasize; |
1302 | |
1303 | if ((d + l) > (dest + size)) { |
1304 | /* Rom size doesn't fit in the destination area. Adjust to avoid |
1305 | * overflow. |
1306 | */ |
1307 | l = dest - d; |
1308 | } |
1309 | |
1310 | if (l > 0) { |
1311 | memset(d, 0x0, l); |
1312 | } |
1313 | } |
1314 | } |
1315 | |
1316 | return (d + l) - dest; |
1317 | } |
1318 | |
1319 | void *rom_ptr(hwaddr addr, size_t size) |
1320 | { |
1321 | Rom *rom; |
1322 | |
1323 | rom = find_rom(addr, size); |
1324 | if (!rom || !rom->data) |
1325 | return NULL; |
1326 | return rom->data + (addr - rom->addr); |
1327 | } |
1328 | |
1329 | void hmp_info_roms(Monitor *mon, const QDict *qdict) |
1330 | { |
1331 | Rom *rom; |
1332 | |
1333 | QTAILQ_FOREACH(rom, &roms, next) { |
1334 | if (rom->mr) { |
1335 | monitor_printf(mon, "%s" |
1336 | " size=0x%06zx name=\"%s\"\n" , |
1337 | memory_region_name(rom->mr), |
1338 | rom->romsize, |
1339 | rom->name); |
1340 | } else if (!rom->fw_file) { |
1341 | monitor_printf(mon, "addr=" TARGET_FMT_plx |
1342 | " size=0x%06zx mem=%s name=\"%s\"\n" , |
1343 | rom->addr, rom->romsize, |
1344 | rom->isrom ? "rom" : "ram" , |
1345 | rom->name); |
1346 | } else { |
1347 | monitor_printf(mon, "fw=%s/%s" |
1348 | " size=0x%06zx name=\"%s\"\n" , |
1349 | rom->fw_dir, |
1350 | rom->fw_file, |
1351 | rom->romsize, |
1352 | rom->name); |
1353 | } |
1354 | } |
1355 | } |
1356 | |
1357 | typedef enum HexRecord HexRecord; |
1358 | enum HexRecord { |
1359 | DATA_RECORD = 0, |
1360 | EOF_RECORD, |
1361 | EXT_SEG_ADDR_RECORD, |
1362 | START_SEG_ADDR_RECORD, |
1363 | EXT_LINEAR_ADDR_RECORD, |
1364 | START_LINEAR_ADDR_RECORD, |
1365 | }; |
1366 | |
1367 | /* Each record contains a 16-bit address which is combined with the upper 16 |
1368 | * bits of the implicit "next address" to form a 32-bit address. |
1369 | */ |
1370 | #define NEXT_ADDR_MASK 0xffff0000 |
1371 | |
1372 | #define DATA_FIELD_MAX_LEN 0xff |
1373 | #define LEN_EXCEPT_DATA 0x5 |
1374 | /* 0x5 = sizeof(byte_count) + sizeof(address) + sizeof(record_type) + |
1375 | * sizeof(checksum) */ |
1376 | typedef struct { |
1377 | uint8_t byte_count; |
1378 | uint16_t address; |
1379 | uint8_t record_type; |
1380 | uint8_t data[DATA_FIELD_MAX_LEN]; |
1381 | uint8_t checksum; |
1382 | } HexLine; |
1383 | |
1384 | /* return 0 or -1 if error */ |
1385 | static bool parse_record(HexLine *line, uint8_t *our_checksum, const uint8_t c, |
1386 | uint32_t *index, const bool in_process) |
1387 | { |
1388 | /* +-------+---------------+-------+---------------------+--------+ |
1389 | * | byte | |record | | | |
1390 | * | count | address | type | data |checksum| |
1391 | * +-------+---------------+-------+---------------------+--------+ |
1392 | * ^ ^ ^ ^ ^ ^ |
1393 | * |1 byte | 2 bytes |1 byte | 0-255 bytes | 1 byte | |
1394 | */ |
1395 | uint8_t value = 0; |
1396 | uint32_t idx = *index; |
1397 | /* ignore space */ |
1398 | if (g_ascii_isspace(c)) { |
1399 | return true; |
1400 | } |
1401 | if (!g_ascii_isxdigit(c) || !in_process) { |
1402 | return false; |
1403 | } |
1404 | value = g_ascii_xdigit_value(c); |
1405 | value = (idx & 0x1) ? (value & 0xf) : (value << 4); |
1406 | if (idx < 2) { |
1407 | line->byte_count |= value; |
1408 | } else if (2 <= idx && idx < 6) { |
1409 | line->address <<= 4; |
1410 | line->address += g_ascii_xdigit_value(c); |
1411 | } else if (6 <= idx && idx < 8) { |
1412 | line->record_type |= value; |
1413 | } else if (8 <= idx && idx < 8 + 2 * line->byte_count) { |
1414 | line->data[(idx - 8) >> 1] |= value; |
1415 | } else if (8 + 2 * line->byte_count <= idx && |
1416 | idx < 10 + 2 * line->byte_count) { |
1417 | line->checksum |= value; |
1418 | } else { |
1419 | return false; |
1420 | } |
1421 | *our_checksum += value; |
1422 | ++(*index); |
1423 | return true; |
1424 | } |
1425 | |
1426 | typedef struct { |
1427 | const char *filename; |
1428 | HexLine line; |
1429 | uint8_t *bin_buf; |
1430 | hwaddr *start_addr; |
1431 | int total_size; |
1432 | uint32_t next_address_to_write; |
1433 | uint32_t current_address; |
1434 | uint32_t current_rom_index; |
1435 | uint32_t rom_start_address; |
1436 | AddressSpace *as; |
1437 | } HexParser; |
1438 | |
1439 | /* return size or -1 if error */ |
1440 | static int handle_record_type(HexParser *parser) |
1441 | { |
1442 | HexLine *line = &(parser->line); |
1443 | switch (line->record_type) { |
1444 | case DATA_RECORD: |
1445 | parser->current_address = |
1446 | (parser->next_address_to_write & NEXT_ADDR_MASK) | line->address; |
1447 | /* verify this is a contiguous block of memory */ |
1448 | if (parser->current_address != parser->next_address_to_write) { |
1449 | if (parser->current_rom_index != 0) { |
1450 | rom_add_blob_fixed_as(parser->filename, parser->bin_buf, |
1451 | parser->current_rom_index, |
1452 | parser->rom_start_address, parser->as); |
1453 | } |
1454 | parser->rom_start_address = parser->current_address; |
1455 | parser->current_rom_index = 0; |
1456 | } |
1457 | |
1458 | /* copy from line buffer to output bin_buf */ |
1459 | memcpy(parser->bin_buf + parser->current_rom_index, line->data, |
1460 | line->byte_count); |
1461 | parser->current_rom_index += line->byte_count; |
1462 | parser->total_size += line->byte_count; |
1463 | /* save next address to write */ |
1464 | parser->next_address_to_write = |
1465 | parser->current_address + line->byte_count; |
1466 | break; |
1467 | |
1468 | case EOF_RECORD: |
1469 | if (parser->current_rom_index != 0) { |
1470 | rom_add_blob_fixed_as(parser->filename, parser->bin_buf, |
1471 | parser->current_rom_index, |
1472 | parser->rom_start_address, parser->as); |
1473 | } |
1474 | return parser->total_size; |
1475 | case EXT_SEG_ADDR_RECORD: |
1476 | case EXT_LINEAR_ADDR_RECORD: |
1477 | if (line->byte_count != 2 && line->address != 0) { |
1478 | return -1; |
1479 | } |
1480 | |
1481 | if (parser->current_rom_index != 0) { |
1482 | rom_add_blob_fixed_as(parser->filename, parser->bin_buf, |
1483 | parser->current_rom_index, |
1484 | parser->rom_start_address, parser->as); |
1485 | } |
1486 | |
1487 | /* save next address to write, |
1488 | * in case of non-contiguous block of memory */ |
1489 | parser->next_address_to_write = (line->data[0] << 12) | |
1490 | (line->data[1] << 4); |
1491 | if (line->record_type == EXT_LINEAR_ADDR_RECORD) { |
1492 | parser->next_address_to_write <<= 12; |
1493 | } |
1494 | |
1495 | parser->rom_start_address = parser->next_address_to_write; |
1496 | parser->current_rom_index = 0; |
1497 | break; |
1498 | |
1499 | case START_SEG_ADDR_RECORD: |
1500 | if (line->byte_count != 4 && line->address != 0) { |
1501 | return -1; |
1502 | } |
1503 | |
1504 | /* x86 16-bit CS:IP segmented addressing */ |
1505 | *(parser->start_addr) = (((line->data[0] << 8) | line->data[1]) << 4) + |
1506 | ((line->data[2] << 8) | line->data[3]); |
1507 | break; |
1508 | |
1509 | case START_LINEAR_ADDR_RECORD: |
1510 | if (line->byte_count != 4 && line->address != 0) { |
1511 | return -1; |
1512 | } |
1513 | |
1514 | *(parser->start_addr) = ldl_be_p(line->data); |
1515 | break; |
1516 | |
1517 | default: |
1518 | return -1; |
1519 | } |
1520 | |
1521 | return parser->total_size; |
1522 | } |
1523 | |
1524 | /* return size or -1 if error */ |
1525 | static int parse_hex_blob(const char *filename, hwaddr *addr, uint8_t *hex_blob, |
1526 | size_t hex_blob_size, AddressSpace *as) |
1527 | { |
1528 | bool in_process = false; /* avoid re-enter and |
1529 | * check whether record begin with ':' */ |
1530 | uint8_t *end = hex_blob + hex_blob_size; |
1531 | uint8_t our_checksum = 0; |
1532 | uint32_t record_index = 0; |
1533 | HexParser parser = { |
1534 | .filename = filename, |
1535 | .bin_buf = g_malloc(hex_blob_size), |
1536 | .start_addr = addr, |
1537 | .as = as, |
1538 | }; |
1539 | |
1540 | rom_transaction_begin(); |
1541 | |
1542 | for (; hex_blob < end; ++hex_blob) { |
1543 | switch (*hex_blob) { |
1544 | case '\r': |
1545 | case '\n': |
1546 | if (!in_process) { |
1547 | break; |
1548 | } |
1549 | |
1550 | in_process = false; |
1551 | if ((LEN_EXCEPT_DATA + parser.line.byte_count) * 2 != |
1552 | record_index || |
1553 | our_checksum != 0) { |
1554 | parser.total_size = -1; |
1555 | goto out; |
1556 | } |
1557 | |
1558 | if (handle_record_type(&parser) == -1) { |
1559 | parser.total_size = -1; |
1560 | goto out; |
1561 | } |
1562 | break; |
1563 | |
1564 | /* start of a new record. */ |
1565 | case ':': |
1566 | memset(&parser.line, 0, sizeof(HexLine)); |
1567 | in_process = true; |
1568 | record_index = 0; |
1569 | break; |
1570 | |
1571 | /* decoding lines */ |
1572 | default: |
1573 | if (!parse_record(&parser.line, &our_checksum, *hex_blob, |
1574 | &record_index, in_process)) { |
1575 | parser.total_size = -1; |
1576 | goto out; |
1577 | } |
1578 | break; |
1579 | } |
1580 | } |
1581 | |
1582 | out: |
1583 | g_free(parser.bin_buf); |
1584 | rom_transaction_end(parser.total_size != -1); |
1585 | return parser.total_size; |
1586 | } |
1587 | |
1588 | /* return size or -1 if error */ |
1589 | int load_targphys_hex_as(const char *filename, hwaddr *entry, AddressSpace *as) |
1590 | { |
1591 | gsize hex_blob_size; |
1592 | gchar *hex_blob; |
1593 | int total_size = 0; |
1594 | |
1595 | if (!g_file_get_contents(filename, &hex_blob, &hex_blob_size, NULL)) { |
1596 | return -1; |
1597 | } |
1598 | |
1599 | total_size = parse_hex_blob(filename, entry, (uint8_t *)hex_blob, |
1600 | hex_blob_size, as); |
1601 | |
1602 | g_free(hex_blob); |
1603 | return total_size; |
1604 | } |
1605 | |