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45#include "qemu/osdep.h"
46#include "qapi/error.h"
47#include "hw/hw.h"
48#include "disas/disas.h"
49#include "monitor/monitor.h"
50#include "sysemu/sysemu.h"
51#include "uboot_image.h"
52#include "hw/loader.h"
53#include "hw/nvram/fw_cfg.h"
54#include "exec/memory.h"
55#include "exec/address-spaces.h"
56#include "hw/boards.h"
57#include "qemu/cutils.h"
58
59#include <zlib.h>
60
61static int roms_loaded;
62
63
64int get_image_size(const char *filename)
65{
66 int fd, size;
67 fd = open(filename, O_RDONLY | O_BINARY);
68 if (fd < 0)
69 return -1;
70 size = lseek(fd, 0, SEEK_END);
71 close(fd);
72 return size;
73}
74
75
76
77int load_image(const char *filename, uint8_t *addr)
78{
79 int fd, size;
80 fd = open(filename, O_RDONLY | O_BINARY);
81 if (fd < 0)
82 return -1;
83 size = lseek(fd, 0, SEEK_END);
84 if (size == -1) {
85 fprintf(stderr, "file %-20s: get size error: %s\n",
86 filename, strerror(errno));
87 close(fd);
88 return -1;
89 }
90
91 lseek(fd, 0, SEEK_SET);
92 if (read(fd, addr, size) != size) {
93 close(fd);
94 return -1;
95 }
96 close(fd);
97 return size;
98}
99
100
101ssize_t load_image_size(const char *filename, void *addr, size_t size)
102{
103 int fd;
104 ssize_t actsize;
105
106 fd = open(filename, O_RDONLY | O_BINARY);
107 if (fd < 0) {
108 return -1;
109 }
110
111 actsize = read(fd, addr, size);
112 if (actsize < 0) {
113 close(fd);
114 return -1;
115 }
116 close(fd);
117
118 return actsize;
119}
120
121
122ssize_t read_targphys(const char *name,
123 int fd, hwaddr dst_addr, size_t nbytes)
124{
125 uint8_t *buf;
126 ssize_t did;
127
128 buf = g_malloc(nbytes);
129 did = read(fd, buf, nbytes);
130 if (did > 0)
131 rom_add_blob_fixed("read", buf, did, dst_addr);
132 g_free(buf);
133 return did;
134}
135
136int load_image_targphys(const char *filename,
137 hwaddr addr, uint64_t max_sz)
138{
139 return load_image_targphys_as(filename, addr, max_sz, NULL);
140}
141
142
143int load_image_targphys_as(const char *filename,
144 hwaddr addr, uint64_t max_sz, AddressSpace *as)
145{
146 int size;
147
148 size = get_image_size(filename);
149 if (size > max_sz) {
150 return -1;
151 }
152 if (size > 0) {
153 rom_add_file_fixed_as(filename, addr, -1, as);
154 }
155 return size;
156}
157
158int load_image_mr(const char *filename, MemoryRegion *mr)
159{
160 int size;
161
162 if (!memory_access_is_direct(mr, false)) {
163
164 return -1;
165 }
166
167 size = get_image_size(filename);
168
169 if (size > memory_region_size(mr)) {
170 return -1;
171 }
172 if (size > 0) {
173 if (rom_add_file_mr(filename, mr, -1) < 0) {
174 return -1;
175 }
176 }
177 return size;
178}
179
180void pstrcpy_targphys(const char *name, hwaddr dest, int buf_size,
181 const char *source)
182{
183 const char *nulp;
184 char *ptr;
185
186 if (buf_size <= 0) return;
187 nulp = memchr(source, 0, buf_size);
188 if (nulp) {
189 rom_add_blob_fixed(name, source, (nulp - source) + 1, dest);
190 } else {
191 rom_add_blob_fixed(name, source, buf_size, dest);
192 ptr = rom_ptr(dest + buf_size - 1);
193 *ptr = 0;
194 }
195}
196
197
198
199struct exec
200{
201 uint32_t a_info;
202 uint32_t a_text;
203 uint32_t a_data;
204 uint32_t a_bss;
205 uint32_t a_syms;
206 uint32_t a_entry;
207 uint32_t a_trsize;
208 uint32_t a_drsize;
209};
210
211static void bswap_ahdr(struct exec *e)
212{
213 bswap32s(&e->a_info);
214 bswap32s(&e->a_text);
215 bswap32s(&e->a_data);
216 bswap32s(&e->a_bss);
217 bswap32s(&e->a_syms);
218 bswap32s(&e->a_entry);
219 bswap32s(&e->a_trsize);
220 bswap32s(&e->a_drsize);
221}
222
223#define N_MAGIC(exec) ((exec).a_info & 0xffff)
224#define OMAGIC 0407
225#define NMAGIC 0410
226#define ZMAGIC 0413
227#define QMAGIC 0314
228#define _N_HDROFF(x) (1024 - sizeof (struct exec))
229#define N_TXTOFF(x) \
230 (N_MAGIC(x) == ZMAGIC ? _N_HDROFF((x)) + sizeof (struct exec) : \
231 (N_MAGIC(x) == QMAGIC ? 0 : sizeof (struct exec)))
232#define N_TXTADDR(x, target_page_size) (N_MAGIC(x) == QMAGIC ? target_page_size : 0)
233#define _N_SEGMENT_ROUND(x, target_page_size) (((x) + target_page_size - 1) & ~(target_page_size - 1))
234
235#define _N_TXTENDADDR(x, target_page_size) (N_TXTADDR(x, target_page_size)+(x).a_text)
236
237#define N_DATADDR(x, target_page_size) \
238 (N_MAGIC(x)==OMAGIC? (_N_TXTENDADDR(x, target_page_size)) \
239 : (_N_SEGMENT_ROUND (_N_TXTENDADDR(x, target_page_size), target_page_size)))
240
241
242int load_aout(const char *filename, hwaddr addr, int max_sz,
243 int bswap_needed, hwaddr target_page_size)
244{
245 int fd;
246 ssize_t size, ret;
247 struct exec e;
248 uint32_t magic;
249
250 fd = open(filename, O_RDONLY | O_BINARY);
251 if (fd < 0)
252 return -1;
253
254 size = read(fd, &e, sizeof(e));
255 if (size < 0)
256 goto fail;
257
258 if (bswap_needed) {
259 bswap_ahdr(&e);
260 }
261
262 magic = N_MAGIC(e);
263 switch (magic) {
264 case ZMAGIC:
265 case QMAGIC:
266 case OMAGIC:
267 if (e.a_text + e.a_data > max_sz)
268 goto fail;
269 lseek(fd, N_TXTOFF(e), SEEK_SET);
270 size = read_targphys(filename, fd, addr, e.a_text + e.a_data);
271 if (size < 0)
272 goto fail;
273 break;
274 case NMAGIC:
275 if (N_DATADDR(e, target_page_size) + e.a_data > max_sz)
276 goto fail;
277 lseek(fd, N_TXTOFF(e), SEEK_SET);
278 size = read_targphys(filename, fd, addr, e.a_text);
279 if (size < 0)
280 goto fail;
281 ret = read_targphys(filename, fd, addr + N_DATADDR(e, target_page_size),
282 e.a_data);
283 if (ret < 0)
284 goto fail;
285 size += ret;
286 break;
287 default:
288 goto fail;
289 }
290 close(fd);
291 return size;
292 fail:
293 close(fd);
294 return -1;
295}
296
297
298
299static void *load_at(int fd, off_t offset, size_t size)
300{
301 void *ptr;
302 if (lseek(fd, offset, SEEK_SET) < 0)
303 return NULL;
304 ptr = g_malloc(size);
305 if (read(fd, ptr, size) != size) {
306 g_free(ptr);
307 return NULL;
308 }
309 return ptr;
310}
311
312#ifdef ELF_CLASS
313#undef ELF_CLASS
314#endif
315
316#define ELF_CLASS ELFCLASS32
317#include "elf.h"
318
319#define SZ 32
320#define elf_word uint32_t
321#define elf_sword int32_t
322#define bswapSZs bswap32s
323#include "hw/elf_ops.h"
324
325#undef elfhdr
326#undef elf_phdr
327#undef elf_shdr
328#undef elf_sym
329#undef elf_rela
330#undef elf_note
331#undef elf_word
332#undef elf_sword
333#undef bswapSZs
334#undef SZ
335#define elfhdr elf64_hdr
336#define elf_phdr elf64_phdr
337#define elf_note elf64_note
338#define elf_shdr elf64_shdr
339#define elf_sym elf64_sym
340#define elf_rela elf64_rela
341#define elf_word uint64_t
342#define elf_sword int64_t
343#define bswapSZs bswap64s
344#define SZ 64
345#include "hw/elf_ops.h"
346
347const char *load_elf_strerror(int error)
348{
349 switch (error) {
350 case 0:
351 return "No error";
352 case ELF_LOAD_FAILED:
353 return "Failed to load ELF";
354 case ELF_LOAD_NOT_ELF:
355 return "The image is not ELF";
356 case ELF_LOAD_WRONG_ARCH:
357 return "The image is from incompatible architecture";
358 case ELF_LOAD_WRONG_ENDIAN:
359 return "The image has incorrect endianness";
360 default:
361 return "Unknown error";
362 }
363}
364
365void load_elf_hdr(const char *filename, void *hdr, bool *is64, Error **errp)
366{
367 int fd;
368 uint8_t e_ident_local[EI_NIDENT];
369 uint8_t *e_ident;
370 size_t hdr_size, off;
371 bool is64l;
372
373 if (!hdr) {
374 hdr = e_ident_local;
375 }
376 e_ident = hdr;
377
378 fd = open(filename, O_RDONLY | O_BINARY);
379 if (fd < 0) {
380 error_setg_errno(errp, errno, "Failed to open file: %s", filename);
381 return;
382 }
383 if (read(fd, hdr, EI_NIDENT) != EI_NIDENT) {
384 error_setg_errno(errp, errno, "Failed to read file: %s", filename);
385 goto fail;
386 }
387 if (e_ident[0] != ELFMAG0 ||
388 e_ident[1] != ELFMAG1 ||
389 e_ident[2] != ELFMAG2 ||
390 e_ident[3] != ELFMAG3) {
391 error_setg(errp, "Bad ELF magic");
392 goto fail;
393 }
394
395 is64l = e_ident[EI_CLASS] == ELFCLASS64;
396 hdr_size = is64l ? sizeof(Elf64_Ehdr) : sizeof(Elf32_Ehdr);
397 if (is64) {
398 *is64 = is64l;
399 }
400
401 off = EI_NIDENT;
402 while (hdr != e_ident_local && off < hdr_size) {
403 size_t br = read(fd, hdr + off, hdr_size - off);
404 switch (br) {
405 case 0:
406 error_setg(errp, "File too short: %s", filename);
407 goto fail;
408 case -1:
409 error_setg_errno(errp, errno, "Failed to read file: %s",
410 filename);
411 goto fail;
412 }
413 off += br;
414 }
415
416fail:
417 close(fd);
418}
419
420
421int load_elf(const char *filename, uint64_t (*translate_fn)(void *, uint64_t),
422 void *translate_opaque, uint64_t *pentry, uint64_t *lowaddr,
423 uint64_t *highaddr, int big_endian, int elf_machine,
424 int clear_lsb, int data_swab)
425{
426 return load_elf_as(filename, translate_fn, translate_opaque, pentry,
427 lowaddr, highaddr, big_endian, elf_machine, clear_lsb,
428 data_swab, NULL);
429}
430
431
432int load_elf_as(const char *filename,
433 uint64_t (*translate_fn)(void *, uint64_t),
434 void *translate_opaque, uint64_t *pentry, uint64_t *lowaddr,
435 uint64_t *highaddr, int big_endian, int elf_machine,
436 int clear_lsb, int data_swab, AddressSpace *as)
437{
438 int fd, data_order, target_data_order, must_swab, ret = ELF_LOAD_FAILED;
439 uint8_t e_ident[EI_NIDENT];
440
441 fd = open(filename, O_RDONLY | O_BINARY);
442 if (fd < 0) {
443 perror(filename);
444 return -1;
445 }
446 if (read(fd, e_ident, sizeof(e_ident)) != sizeof(e_ident))
447 goto fail;
448 if (e_ident[0] != ELFMAG0 ||
449 e_ident[1] != ELFMAG1 ||
450 e_ident[2] != ELFMAG2 ||
451 e_ident[3] != ELFMAG3) {
452 ret = ELF_LOAD_NOT_ELF;
453 goto fail;
454 }
455#ifdef HOST_WORDS_BIGENDIAN
456 data_order = ELFDATA2MSB;
457#else
458 data_order = ELFDATA2LSB;
459#endif
460 must_swab = data_order != e_ident[EI_DATA];
461 if (big_endian) {
462 target_data_order = ELFDATA2MSB;
463 } else {
464 target_data_order = ELFDATA2LSB;
465 }
466
467 if (target_data_order != e_ident[EI_DATA]) {
468 ret = ELF_LOAD_WRONG_ENDIAN;
469 goto fail;
470 }
471
472 lseek(fd, 0, SEEK_SET);
473 if (e_ident[EI_CLASS] == ELFCLASS64) {
474 ret = load_elf64(filename, fd, translate_fn, translate_opaque, must_swab,
475 pentry, lowaddr, highaddr, elf_machine, clear_lsb,
476 data_swab, as);
477 } else {
478 ret = load_elf32(filename, fd, translate_fn, translate_opaque, must_swab,
479 pentry, lowaddr, highaddr, elf_machine, clear_lsb,
480 data_swab, as);
481 }
482
483 fail:
484 close(fd);
485 return ret;
486}
487
488static void bswap_uboot_header(uboot_image_header_t *hdr)
489{
490#ifndef HOST_WORDS_BIGENDIAN
491 bswap32s(&hdr->ih_magic);
492 bswap32s(&hdr->ih_hcrc);
493 bswap32s(&hdr->ih_time);
494 bswap32s(&hdr->ih_size);
495 bswap32s(&hdr->ih_load);
496 bswap32s(&hdr->ih_ep);
497 bswap32s(&hdr->ih_dcrc);
498#endif
499}
500
501
502#define ZALLOC_ALIGNMENT 16
503
504static void *zalloc(void *x, unsigned items, unsigned size)
505{
506 void *p;
507
508 size *= items;
509 size = (size + ZALLOC_ALIGNMENT - 1) & ~(ZALLOC_ALIGNMENT - 1);
510
511 p = g_malloc(size);
512
513 return (p);
514}
515
516static void zfree(void *x, void *addr)
517{
518 g_free(addr);
519}
520
521
522#define HEAD_CRC 2
523#define EXTRA_FIELD 4
524#define ORIG_NAME 8
525#define COMMENT 0x10
526#define RESERVED 0xe0
527
528#define DEFLATED 8
529
530
531
532#define UBOOT_MAX_GUNZIP_BYTES (64 << 20)
533
534static ssize_t gunzip(void *dst, size_t dstlen, uint8_t *src,
535 size_t srclen)
536{
537 z_stream s;
538 ssize_t dstbytes;
539 int r, i, flags;
540
541
542 i = 10;
543 flags = src[3];
544 if (src[2] != DEFLATED || (flags & RESERVED) != 0) {
545 puts ("Error: Bad gzipped data\n");
546 return -1;
547 }
548 if ((flags & EXTRA_FIELD) != 0)
549 i = 12 + src[10] + (src[11] << 8);
550 if ((flags & ORIG_NAME) != 0)
551 while (src[i++] != 0)
552 ;
553 if ((flags & COMMENT) != 0)
554 while (src[i++] != 0)
555 ;
556 if ((flags & HEAD_CRC) != 0)
557 i += 2;
558 if (i >= srclen) {
559 puts ("Error: gunzip out of data in header\n");
560 return -1;
561 }
562
563 s.zalloc = zalloc;
564 s.zfree = zfree;
565
566 r = inflateInit2(&s, -MAX_WBITS);
567 if (r != Z_OK) {
568 printf ("Error: inflateInit2() returned %d\n", r);
569 return (-1);
570 }
571 s.next_in = src + i;
572 s.avail_in = srclen - i;
573 s.next_out = dst;
574 s.avail_out = dstlen;
575 r = inflate(&s, Z_FINISH);
576 if (r != Z_OK && r != Z_STREAM_END) {
577 printf ("Error: inflate() returned %d\n", r);
578 return -1;
579 }
580 dstbytes = s.next_out - (unsigned char *) dst;
581 inflateEnd(&s);
582
583 return dstbytes;
584}
585
586
587static int load_uboot_image(const char *filename, hwaddr *ep, hwaddr *loadaddr,
588 int *is_linux, uint8_t image_type,
589 uint64_t (*translate_fn)(void *, uint64_t),
590 void *translate_opaque, AddressSpace *as)
591{
592 int fd;
593 int size;
594 hwaddr address;
595 uboot_image_header_t h;
596 uboot_image_header_t *hdr = &h;
597 uint8_t *data = NULL;
598 int ret = -1;
599 int do_uncompress = 0;
600
601 fd = open(filename, O_RDONLY | O_BINARY);
602 if (fd < 0)
603 return -1;
604
605 size = read(fd, hdr, sizeof(uboot_image_header_t));
606 if (size < 0)
607 goto out;
608
609 bswap_uboot_header(hdr);
610
611 if (hdr->ih_magic != IH_MAGIC)
612 goto out;
613
614 if (hdr->ih_type != image_type) {
615 fprintf(stderr, "Wrong image type %d, expected %d\n", hdr->ih_type,
616 image_type);
617 goto out;
618 }
619
620
621 switch (hdr->ih_type) {
622 case IH_TYPE_KERNEL:
623 address = hdr->ih_load;
624 if (translate_fn) {
625 address = translate_fn(translate_opaque, address);
626 }
627 if (loadaddr) {
628 *loadaddr = hdr->ih_load;
629 }
630
631 switch (hdr->ih_comp) {
632 case IH_COMP_NONE:
633 break;
634 case IH_COMP_GZIP:
635 do_uncompress = 1;
636 break;
637 default:
638 fprintf(stderr,
639 "Unable to load u-boot images with compression type %d\n",
640 hdr->ih_comp);
641 goto out;
642 }
643
644 if (ep) {
645 *ep = hdr->ih_ep;
646 }
647
648
649 if (is_linux) {
650 if (hdr->ih_os == IH_OS_LINUX) {
651 *is_linux = 1;
652 } else {
653 *is_linux = 0;
654 }
655 }
656
657 break;
658 case IH_TYPE_RAMDISK:
659 address = *loadaddr;
660 break;
661 default:
662 fprintf(stderr, "Unsupported u-boot image type %d\n", hdr->ih_type);
663 goto out;
664 }
665
666 data = g_malloc(hdr->ih_size);
667
668 if (read(fd, data, hdr->ih_size) != hdr->ih_size) {
669 fprintf(stderr, "Error reading file\n");
670 goto out;
671 }
672
673 if (do_uncompress) {
674 uint8_t *compressed_data;
675 size_t max_bytes;
676 ssize_t bytes;
677
678 compressed_data = data;
679 max_bytes = UBOOT_MAX_GUNZIP_BYTES;
680 data = g_malloc(max_bytes);
681
682 bytes = gunzip(data, max_bytes, compressed_data, hdr->ih_size);
683 g_free(compressed_data);
684 if (bytes < 0) {
685 fprintf(stderr, "Unable to decompress gzipped image!\n");
686 goto out;
687 }
688 hdr->ih_size = bytes;
689 }
690
691 rom_add_blob_fixed_as(filename, data, hdr->ih_size, address, as);
692
693 ret = hdr->ih_size;
694
695out:
696 g_free(data);
697 close(fd);
698 return ret;
699}
700
701int load_uimage(const char *filename, hwaddr *ep, hwaddr *loadaddr,
702 int *is_linux,
703 uint64_t (*translate_fn)(void *, uint64_t),
704 void *translate_opaque)
705{
706 return load_uboot_image(filename, ep, loadaddr, is_linux, IH_TYPE_KERNEL,
707 translate_fn, translate_opaque, NULL);
708}
709
710int load_uimage_as(const char *filename, hwaddr *ep, hwaddr *loadaddr,
711 int *is_linux,
712 uint64_t (*translate_fn)(void *, uint64_t),
713 void *translate_opaque, AddressSpace *as)
714{
715 return load_uboot_image(filename, ep, loadaddr, is_linux, IH_TYPE_KERNEL,
716 translate_fn, translate_opaque, as);
717}
718
719
720int load_ramdisk(const char *filename, hwaddr addr, uint64_t max_sz)
721{
722 return load_uboot_image(filename, NULL, &addr, NULL, IH_TYPE_RAMDISK,
723 NULL, NULL, NULL);
724}
725
726
727int load_image_gzipped_buffer(const char *filename, uint64_t max_sz,
728 uint8_t **buffer)
729{
730 uint8_t *compressed_data = NULL;
731 uint8_t *data = NULL;
732 gsize len;
733 ssize_t bytes;
734 int ret = -1;
735
736 if (!g_file_get_contents(filename, (char **) &compressed_data, &len,
737 NULL)) {
738 goto out;
739 }
740
741
742 if (len < 2 ||
743 compressed_data[0] != 0x1f ||
744 compressed_data[1] != 0x8b) {
745 goto out;
746 }
747
748 if (max_sz > LOAD_IMAGE_MAX_GUNZIP_BYTES) {
749 max_sz = LOAD_IMAGE_MAX_GUNZIP_BYTES;
750 }
751
752 data = g_malloc(max_sz);
753 bytes = gunzip(data, max_sz, compressed_data, len);
754 if (bytes < 0) {
755 fprintf(stderr, "%s: unable to decompress gzipped kernel file\n",
756 filename);
757 goto out;
758 }
759
760
761 *buffer = g_realloc(data, bytes);
762 ret = bytes;
763
764 data = NULL;
765
766 out:
767 g_free(compressed_data);
768 g_free(data);
769 return ret;
770}
771
772
773int load_image_gzipped(const char *filename, hwaddr addr, uint64_t max_sz)
774{
775 int bytes;
776 uint8_t *data;
777
778 bytes = load_image_gzipped_buffer(filename, max_sz, &data);
779 if (bytes != -1) {
780 rom_add_blob_fixed(filename, data, bytes, addr);
781 g_free(data);
782 }
783 return bytes;
784}
785
786
787
788
789
790
791
792typedef struct Rom Rom;
793
794struct Rom {
795 char *name;
796 char *path;
797
798
799
800
801
802 size_t romsize;
803 size_t datasize;
804
805 uint8_t *data;
806 MemoryRegion *mr;
807 AddressSpace *as;
808 int isrom;
809 char *fw_dir;
810 char *fw_file;
811
812 hwaddr addr;
813 QTAILQ_ENTRY(Rom) next;
814};
815
816static FWCfgState *fw_cfg;
817static QTAILQ_HEAD(, Rom) roms = QTAILQ_HEAD_INITIALIZER(roms);
818
819static inline bool rom_order_compare(Rom *rom, Rom *item)
820{
821 return ((uintptr_t)(void *)rom->as > (uintptr_t)(void *)item->as) ||
822 (rom->as == item->as && rom->addr >= item->addr);
823}
824
825static void rom_insert(Rom *rom)
826{
827 Rom *item;
828
829
830
831
832
833
834
835
836
837
838 if (!rom->as) {
839
840
841
842 rom->as = first_cpu->as;
843 }
844
845
846 QTAILQ_FOREACH(item, &roms, next) {
847 if (rom_order_compare(rom, item)) {
848 continue;
849 }
850 QTAILQ_INSERT_BEFORE(item, rom, next);
851 return;
852 }
853 QTAILQ_INSERT_TAIL(&roms, rom, next);
854}
855
856static void fw_cfg_resized(const char *id, uint64_t length, void *host)
857{
858 if (fw_cfg) {
859 fw_cfg_modify_file(fw_cfg, id + strlen("/rom@"), host, length);
860 }
861}
862
863static void *rom_set_mr(Rom *rom, Object *owner, const char *name)
864{
865 void *data;
866
867 rom->mr = g_malloc(sizeof(*rom->mr));
868 memory_region_init_resizeable_ram(rom->mr, owner, name,
869 rom->datasize, rom->romsize,
870 fw_cfg_resized,
871 &error_fatal);
872 memory_region_set_readonly(rom->mr, true);
873 vmstate_register_ram_global(rom->mr);
874
875 data = memory_region_get_ram_ptr(rom->mr);
876 memcpy(data, rom->data, rom->datasize);
877
878 return data;
879}
880
881int rom_add_file(const char *file, const char *fw_dir,
882 hwaddr addr, int32_t bootindex,
883 bool option_rom, MemoryRegion *mr,
884 AddressSpace *as)
885{
886 MachineClass *mc = MACHINE_GET_CLASS(qdev_get_machine());
887 Rom *rom;
888 int rc, fd = -1;
889 char devpath[100];
890
891 if (as && mr) {
892 fprintf(stderr, "Specifying an Address Space and Memory Region is " \
893 "not valid when loading a rom\n");
894
895 return -1;
896 }
897
898 rom = g_malloc0(sizeof(*rom));
899 rom->name = g_strdup(file);
900 rom->path = qemu_find_file(QEMU_FILE_TYPE_BIOS, rom->name);
901 rom->as = as;
902 if (rom->path == NULL) {
903 rom->path = g_strdup(file);
904 }
905
906 fd = open(rom->path, O_RDONLY | O_BINARY);
907 if (fd == -1) {
908 fprintf(stderr, "Could not open option rom '%s': %s\n",
909 rom->path, strerror(errno));
910 goto err;
911 }
912
913 if (fw_dir) {
914 rom->fw_dir = g_strdup(fw_dir);
915 rom->fw_file = g_strdup(file);
916 }
917 rom->addr = addr;
918 rom->romsize = lseek(fd, 0, SEEK_END);
919 if (rom->romsize == -1) {
920 fprintf(stderr, "rom: file %-20s: get size error: %s\n",
921 rom->name, strerror(errno));
922 goto err;
923 }
924
925 rom->datasize = rom->romsize;
926 rom->data = g_malloc0(rom->datasize);
927 lseek(fd, 0, SEEK_SET);
928 rc = read(fd, rom->data, rom->datasize);
929 if (rc != rom->datasize) {
930 fprintf(stderr, "rom: file %-20s: read error: rc=%d (expected %zd)\n",
931 rom->name, rc, rom->datasize);
932 goto err;
933 }
934 close(fd);
935 rom_insert(rom);
936 if (rom->fw_file && fw_cfg) {
937 const char *basename;
938 char fw_file_name[FW_CFG_MAX_FILE_PATH];
939 void *data;
940
941 basename = strrchr(rom->fw_file, '/');
942 if (basename) {
943 basename++;
944 } else {
945 basename = rom->fw_file;
946 }
947 snprintf(fw_file_name, sizeof(fw_file_name), "%s/%s", rom->fw_dir,
948 basename);
949 snprintf(devpath, sizeof(devpath), "/rom@%s", fw_file_name);
950
951 if ((!option_rom || mc->option_rom_has_mr) && mc->rom_file_has_mr) {
952 data = rom_set_mr(rom, OBJECT(fw_cfg), devpath);
953 } else {
954 data = rom->data;
955 }
956
957 fw_cfg_add_file(fw_cfg, fw_file_name, data, rom->romsize);
958 } else {
959 if (mr) {
960 rom->mr = mr;
961 snprintf(devpath, sizeof(devpath), "/rom@%s", file);
962 } else {
963 snprintf(devpath, sizeof(devpath), "/rom@" TARGET_FMT_plx, addr);
964 }
965 }
966
967 add_boot_device_path(bootindex, NULL, devpath);
968 return 0;
969
970err:
971 if (fd != -1)
972 close(fd);
973
974 g_free(rom->data);
975 g_free(rom->path);
976 g_free(rom->name);
977 if (fw_dir) {
978 g_free(rom->fw_dir);
979 g_free(rom->fw_file);
980 }
981 g_free(rom);
982
983 return -1;
984}
985
986MemoryRegion *rom_add_blob(const char *name, const void *blob, size_t len,
987 size_t max_len, hwaddr addr, const char *fw_file_name,
988 FWCfgReadCallback fw_callback, void *callback_opaque,
989 AddressSpace *as)
990{
991 MachineClass *mc = MACHINE_GET_CLASS(qdev_get_machine());
992 Rom *rom;
993 MemoryRegion *mr = NULL;
994
995 rom = g_malloc0(sizeof(*rom));
996 rom->name = g_strdup(name);
997 rom->as = as;
998 rom->addr = addr;
999 rom->romsize = max_len ? max_len : len;
1000 rom->datasize = len;
1001 rom->data = g_malloc0(rom->datasize);
1002 memcpy(rom->data, blob, len);
1003 rom_insert(rom);
1004 if (fw_file_name && fw_cfg) {
1005 char devpath[100];
1006 void *data;
1007
1008 snprintf(devpath, sizeof(devpath), "/rom@%s", fw_file_name);
1009
1010 if (mc->rom_file_has_mr) {
1011 data = rom_set_mr(rom, OBJECT(fw_cfg), devpath);
1012 mr = rom->mr;
1013 } else {
1014 data = rom->data;
1015 }
1016
1017 fw_cfg_add_file_callback(fw_cfg, fw_file_name,
1018 fw_callback, callback_opaque,
1019 data, rom->datasize);
1020 }
1021 return mr;
1022}
1023
1024
1025
1026
1027
1028
1029int rom_add_elf_program(const char *name, void *data, size_t datasize,
1030 size_t romsize, hwaddr addr, AddressSpace *as)
1031{
1032 Rom *rom;
1033
1034 rom = g_malloc0(sizeof(*rom));
1035 rom->name = g_strdup(name);
1036 rom->addr = addr;
1037 rom->datasize = datasize;
1038 rom->romsize = romsize;
1039 rom->data = data;
1040 rom->as = as;
1041 rom_insert(rom);
1042 return 0;
1043}
1044
1045int rom_add_vga(const char *file)
1046{
1047 return rom_add_file(file, "vgaroms", 0, -1, true, NULL, NULL);
1048}
1049
1050int rom_add_option(const char *file, int32_t bootindex)
1051{
1052 return rom_add_file(file, "genroms", 0, bootindex, true, NULL, NULL);
1053}
1054
1055static void rom_reset(void *unused)
1056{
1057 Rom *rom;
1058
1059 QTAILQ_FOREACH(rom, &roms, next) {
1060 if (rom->fw_file) {
1061 continue;
1062 }
1063 if (rom->data == NULL) {
1064 continue;
1065 }
1066 if (rom->mr) {
1067 void *host = memory_region_get_ram_ptr(rom->mr);
1068 memcpy(host, rom->data, rom->datasize);
1069 } else {
1070 cpu_physical_memory_write_rom(rom->as, rom->addr, rom->data,
1071 rom->datasize);
1072 }
1073 if (rom->isrom) {
1074
1075 g_free(rom->data);
1076 rom->data = NULL;
1077 }
1078
1079
1080
1081
1082
1083
1084 cpu_flush_icache_range(rom->addr, rom->datasize);
1085 }
1086}
1087
1088int rom_check_and_register_reset(void)
1089{
1090 hwaddr addr = 0;
1091 MemoryRegionSection section;
1092 Rom *rom;
1093 AddressSpace *as = NULL;
1094
1095 QTAILQ_FOREACH(rom, &roms, next) {
1096 if (rom->fw_file) {
1097 continue;
1098 }
1099 if ((addr > rom->addr) && (as == rom->as)) {
1100 fprintf(stderr, "rom: requested regions overlap "
1101 "(rom %s. free=0x" TARGET_FMT_plx
1102 ", addr=0x" TARGET_FMT_plx ")\n",
1103 rom->name, addr, rom->addr);
1104
1105 }
1106 addr = rom->addr;
1107 addr += rom->romsize;
1108 section = memory_region_find(rom->mr ? rom->mr : get_system_memory(),
1109 rom->addr, 1);
1110 rom->isrom = int128_nz(section.size) && memory_region_is_rom(section.mr);
1111 memory_region_unref(section.mr);
1112 as = rom->as;
1113 }
1114 qemu_register_reset(rom_reset, NULL);
1115 roms_loaded = 1;
1116 return 0;
1117}
1118
1119void rom_set_fw(FWCfgState *f)
1120{
1121 fw_cfg = f;
1122}
1123
1124void rom_set_order_override(int order)
1125{
1126 if (!fw_cfg)
1127 return;
1128 fw_cfg_set_order_override(fw_cfg, order);
1129}
1130
1131void rom_reset_order_override(void)
1132{
1133 if (!fw_cfg)
1134 return;
1135 fw_cfg_reset_order_override(fw_cfg);
1136}
1137
1138static Rom *find_rom(hwaddr addr)
1139{
1140 Rom *rom;
1141
1142 QTAILQ_FOREACH(rom, &roms, next) {
1143 if (rom->fw_file) {
1144 continue;
1145 }
1146 if (rom->mr) {
1147 continue;
1148 }
1149 if (rom->addr > addr) {
1150 continue;
1151 }
1152 if (rom->addr + rom->romsize < addr) {
1153 continue;
1154 }
1155 return rom;
1156 }
1157 return NULL;
1158}
1159
1160
1161
1162
1163
1164
1165int rom_copy(uint8_t *dest, hwaddr addr, size_t size)
1166{
1167 hwaddr end = addr + size;
1168 uint8_t *s, *d = dest;
1169 size_t l = 0;
1170 Rom *rom;
1171
1172 QTAILQ_FOREACH(rom, &roms, next) {
1173 if (rom->fw_file) {
1174 continue;
1175 }
1176 if (rom->mr) {
1177 continue;
1178 }
1179 if (rom->addr + rom->romsize < addr) {
1180 continue;
1181 }
1182 if (rom->addr > end) {
1183 break;
1184 }
1185
1186 d = dest + (rom->addr - addr);
1187 s = rom->data;
1188 l = rom->datasize;
1189
1190 if ((d + l) > (dest + size)) {
1191 l = dest - d;
1192 }
1193
1194 if (l > 0) {
1195 memcpy(d, s, l);
1196 }
1197
1198 if (rom->romsize > rom->datasize) {
1199
1200
1201
1202
1203 d += l;
1204 l = rom->romsize - rom->datasize;
1205
1206 if ((d + l) > (dest + size)) {
1207
1208
1209
1210 l = dest - d;
1211 }
1212
1213 if (l > 0) {
1214 memset(d, 0x0, l);
1215 }
1216 }
1217 }
1218
1219 return (d + l) - dest;
1220}
1221
1222void *rom_ptr(hwaddr addr)
1223{
1224 Rom *rom;
1225
1226 rom = find_rom(addr);
1227 if (!rom || !rom->data)
1228 return NULL;
1229 return rom->data + (addr - rom->addr);
1230}
1231
1232void hmp_info_roms(Monitor *mon, const QDict *qdict)
1233{
1234 Rom *rom;
1235
1236 QTAILQ_FOREACH(rom, &roms, next) {
1237 if (rom->mr) {
1238 monitor_printf(mon, "%s"
1239 " size=0x%06zx name=\"%s\"\n",
1240 memory_region_name(rom->mr),
1241 rom->romsize,
1242 rom->name);
1243 } else if (!rom->fw_file) {
1244 monitor_printf(mon, "addr=" TARGET_FMT_plx
1245 " size=0x%06zx mem=%s name=\"%s\"\n",
1246 rom->addr, rom->romsize,
1247 rom->isrom ? "rom" : "ram",
1248 rom->name);
1249 } else {
1250 monitor_printf(mon, "fw=%s/%s"
1251 " size=0x%06zx name=\"%s\"\n",
1252 rom->fw_dir,
1253 rom->fw_file,
1254 rom->romsize,
1255 rom->name);
1256 }
1257 }
1258}
1259