2 * QEMU Executable loader
4 * Copyright (c) 2006 Fabrice Bellard
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:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
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
24 * Gunzip functionality in this file is derived from u-boot:
26 * (C) Copyright 2008 Semihalf
28 * (C) Copyright 2000-2005
29 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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.
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.
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/>.
45 #include "qemu/osdep.h"
47 #include "disas/disas.h"
48 #include "monitor/monitor.h"
49 #include "sysemu/sysemu.h"
50 #include "uboot_image.h"
51 #include "hw/loader.h"
52 #include "hw/nvram/fw_cfg.h"
53 #include "exec/memory.h"
54 #include "exec/address-spaces.h"
55 #include "hw/boards.h"
59 static int roms_loaded
;
61 /* return the size or -1 if error */
62 int get_image_size(const char *filename
)
65 fd
= open(filename
, O_RDONLY
| O_BINARY
);
68 size
= lseek(fd
, 0, SEEK_END
);
73 /* return the size or -1 if error */
74 /* deprecated, because caller does not specify buffer size! */
75 int load_image(const char *filename
, uint8_t *addr
)
78 fd
= open(filename
, O_RDONLY
| O_BINARY
);
81 size
= lseek(fd
, 0, SEEK_END
);
83 fprintf(stderr
, "file %-20s: get size error: %s\n",
84 filename
, strerror(errno
));
89 lseek(fd
, 0, SEEK_SET
);
90 if (read(fd
, addr
, size
) != size
) {
98 /* return the size or -1 if error */
99 ssize_t
load_image_size(const char *filename
, void *addr
, size_t size
)
104 fd
= open(filename
, O_RDONLY
| O_BINARY
);
109 actsize
= read(fd
, addr
, size
);
119 /* read()-like version */
120 ssize_t
read_targphys(const char *name
,
121 int fd
, hwaddr dst_addr
, size_t nbytes
)
126 buf
= g_malloc(nbytes
);
127 did
= read(fd
, buf
, nbytes
);
129 rom_add_blob_fixed("read", buf
, did
, dst_addr
);
134 /* return the size or -1 if error */
135 int load_image_targphys(const char *filename
,
136 hwaddr addr
, uint64_t max_sz
)
140 size
= get_image_size(filename
);
145 rom_add_file_fixed(filename
, addr
, -1);
150 void pstrcpy_targphys(const char *name
, hwaddr dest
, int buf_size
,
156 if (buf_size
<= 0) return;
157 nulp
= memchr(source
, 0, buf_size
);
159 rom_add_blob_fixed(name
, source
, (nulp
- source
) + 1, dest
);
161 rom_add_blob_fixed(name
, source
, buf_size
, dest
);
162 ptr
= rom_ptr(dest
+ buf_size
- 1);
171 uint32_t a_info
; /* Use macros N_MAGIC, etc for access */
172 uint32_t a_text
; /* length of text, in bytes */
173 uint32_t a_data
; /* length of data, in bytes */
174 uint32_t a_bss
; /* length of uninitialized data area, in bytes */
175 uint32_t a_syms
; /* length of symbol table data in file, in bytes */
176 uint32_t a_entry
; /* start address */
177 uint32_t a_trsize
; /* length of relocation info for text, in bytes */
178 uint32_t a_drsize
; /* length of relocation info for data, in bytes */
181 static void bswap_ahdr(struct exec
*e
)
183 bswap32s(&e
->a_info
);
184 bswap32s(&e
->a_text
);
185 bswap32s(&e
->a_data
);
187 bswap32s(&e
->a_syms
);
188 bswap32s(&e
->a_entry
);
189 bswap32s(&e
->a_trsize
);
190 bswap32s(&e
->a_drsize
);
193 #define N_MAGIC(exec) ((exec).a_info & 0xffff)
198 #define _N_HDROFF(x) (1024 - sizeof (struct exec))
199 #define N_TXTOFF(x) \
200 (N_MAGIC(x) == ZMAGIC ? _N_HDROFF((x)) + sizeof (struct exec) : \
201 (N_MAGIC(x) == QMAGIC ? 0 : sizeof (struct exec)))
202 #define N_TXTADDR(x, target_page_size) (N_MAGIC(x) == QMAGIC ? target_page_size : 0)
203 #define _N_SEGMENT_ROUND(x, target_page_size) (((x) + target_page_size - 1) & ~(target_page_size - 1))
205 #define _N_TXTENDADDR(x, target_page_size) (N_TXTADDR(x, target_page_size)+(x).a_text)
207 #define N_DATADDR(x, target_page_size) \
208 (N_MAGIC(x)==OMAGIC? (_N_TXTENDADDR(x, target_page_size)) \
209 : (_N_SEGMENT_ROUND (_N_TXTENDADDR(x, target_page_size), target_page_size)))
212 int load_aout(const char *filename
, hwaddr addr
, int max_sz
,
213 int bswap_needed
, hwaddr target_page_size
)
220 fd
= open(filename
, O_RDONLY
| O_BINARY
);
224 size
= read(fd
, &e
, sizeof(e
));
237 if (e
.a_text
+ e
.a_data
> max_sz
)
239 lseek(fd
, N_TXTOFF(e
), SEEK_SET
);
240 size
= read_targphys(filename
, fd
, addr
, e
.a_text
+ e
.a_data
);
245 if (N_DATADDR(e
, target_page_size
) + e
.a_data
> max_sz
)
247 lseek(fd
, N_TXTOFF(e
), SEEK_SET
);
248 size
= read_targphys(filename
, fd
, addr
, e
.a_text
);
251 ret
= read_targphys(filename
, fd
, addr
+ N_DATADDR(e
, target_page_size
),
269 static void *load_at(int fd
, off_t offset
, size_t size
)
272 if (lseek(fd
, offset
, SEEK_SET
) < 0)
274 ptr
= g_malloc(size
);
275 if (read(fd
, ptr
, size
) != size
) {
286 #define ELF_CLASS ELFCLASS32
290 #define elf_word uint32_t
291 #define elf_sword int32_t
292 #define bswapSZs bswap32s
293 #include "hw/elf_ops.h"
305 #define elfhdr elf64_hdr
306 #define elf_phdr elf64_phdr
307 #define elf_note elf64_note
308 #define elf_shdr elf64_shdr
309 #define elf_sym elf64_sym
310 #define elf_rela elf64_rela
311 #define elf_word uint64_t
312 #define elf_sword int64_t
313 #define bswapSZs bswap64s
315 #include "hw/elf_ops.h"
317 const char *load_elf_strerror(int error
)
322 case ELF_LOAD_FAILED
:
323 return "Failed to load ELF";
324 case ELF_LOAD_NOT_ELF
:
325 return "The image is not ELF";
326 case ELF_LOAD_WRONG_ARCH
:
327 return "The image is from incompatible architecture";
328 case ELF_LOAD_WRONG_ENDIAN
:
329 return "The image has incorrect endianness";
331 return "Unknown error";
335 /* return < 0 if error, otherwise the number of bytes loaded in memory */
336 int load_elf(const char *filename
, uint64_t (*translate_fn
)(void *, uint64_t),
337 void *translate_opaque
, uint64_t *pentry
, uint64_t *lowaddr
,
338 uint64_t *highaddr
, int big_endian
, int elf_machine
, int clear_lsb
)
340 int fd
, data_order
, target_data_order
, must_swab
, ret
= ELF_LOAD_FAILED
;
341 uint8_t e_ident
[EI_NIDENT
];
343 fd
= open(filename
, O_RDONLY
| O_BINARY
);
348 if (read(fd
, e_ident
, sizeof(e_ident
)) != sizeof(e_ident
))
350 if (e_ident
[0] != ELFMAG0
||
351 e_ident
[1] != ELFMAG1
||
352 e_ident
[2] != ELFMAG2
||
353 e_ident
[3] != ELFMAG3
) {
354 ret
= ELF_LOAD_NOT_ELF
;
357 #ifdef HOST_WORDS_BIGENDIAN
358 data_order
= ELFDATA2MSB
;
360 data_order
= ELFDATA2LSB
;
362 must_swab
= data_order
!= e_ident
[EI_DATA
];
364 target_data_order
= ELFDATA2MSB
;
366 target_data_order
= ELFDATA2LSB
;
369 if (target_data_order
!= e_ident
[EI_DATA
]) {
370 ret
= ELF_LOAD_WRONG_ENDIAN
;
374 lseek(fd
, 0, SEEK_SET
);
375 if (e_ident
[EI_CLASS
] == ELFCLASS64
) {
376 ret
= load_elf64(filename
, fd
, translate_fn
, translate_opaque
, must_swab
,
377 pentry
, lowaddr
, highaddr
, elf_machine
, clear_lsb
);
379 ret
= load_elf32(filename
, fd
, translate_fn
, translate_opaque
, must_swab
,
380 pentry
, lowaddr
, highaddr
, elf_machine
, clear_lsb
);
388 static void bswap_uboot_header(uboot_image_header_t
*hdr
)
390 #ifndef HOST_WORDS_BIGENDIAN
391 bswap32s(&hdr
->ih_magic
);
392 bswap32s(&hdr
->ih_hcrc
);
393 bswap32s(&hdr
->ih_time
);
394 bswap32s(&hdr
->ih_size
);
395 bswap32s(&hdr
->ih_load
);
396 bswap32s(&hdr
->ih_ep
);
397 bswap32s(&hdr
->ih_dcrc
);
402 #define ZALLOC_ALIGNMENT 16
404 static void *zalloc(void *x
, unsigned items
, unsigned size
)
409 size
= (size
+ ZALLOC_ALIGNMENT
- 1) & ~(ZALLOC_ALIGNMENT
- 1);
416 static void zfree(void *x
, void *addr
)
423 #define EXTRA_FIELD 4
426 #define RESERVED 0xe0
430 /* This is the usual maximum in uboot, so if a uImage overflows this, it would
431 * overflow on real hardware too. */
432 #define UBOOT_MAX_GUNZIP_BYTES (64 << 20)
434 static ssize_t
gunzip(void *dst
, size_t dstlen
, uint8_t *src
,
444 if (src
[2] != DEFLATED
|| (flags
& RESERVED
) != 0) {
445 puts ("Error: Bad gzipped data\n");
448 if ((flags
& EXTRA_FIELD
) != 0)
449 i
= 12 + src
[10] + (src
[11] << 8);
450 if ((flags
& ORIG_NAME
) != 0)
451 while (src
[i
++] != 0)
453 if ((flags
& COMMENT
) != 0)
454 while (src
[i
++] != 0)
456 if ((flags
& HEAD_CRC
) != 0)
459 puts ("Error: gunzip out of data in header\n");
466 r
= inflateInit2(&s
, -MAX_WBITS
);
468 printf ("Error: inflateInit2() returned %d\n", r
);
472 s
.avail_in
= srclen
- i
;
474 s
.avail_out
= dstlen
;
475 r
= inflate(&s
, Z_FINISH
);
476 if (r
!= Z_OK
&& r
!= Z_STREAM_END
) {
477 printf ("Error: inflate() returned %d\n", r
);
480 dstbytes
= s
.next_out
- (unsigned char *) dst
;
486 /* Load a U-Boot image. */
487 static int load_uboot_image(const char *filename
, hwaddr
*ep
, hwaddr
*loadaddr
,
488 int *is_linux
, uint8_t image_type
,
489 uint64_t (*translate_fn
)(void *, uint64_t),
490 void *translate_opaque
)
495 uboot_image_header_t h
;
496 uboot_image_header_t
*hdr
= &h
;
497 uint8_t *data
= NULL
;
499 int do_uncompress
= 0;
501 fd
= open(filename
, O_RDONLY
| O_BINARY
);
505 size
= read(fd
, hdr
, sizeof(uboot_image_header_t
));
509 bswap_uboot_header(hdr
);
511 if (hdr
->ih_magic
!= IH_MAGIC
)
514 if (hdr
->ih_type
!= image_type
) {
515 fprintf(stderr
, "Wrong image type %d, expected %d\n", hdr
->ih_type
,
520 /* TODO: Implement other image types. */
521 switch (hdr
->ih_type
) {
523 address
= hdr
->ih_load
;
525 address
= translate_fn(translate_opaque
, address
);
528 *loadaddr
= hdr
->ih_load
;
531 switch (hdr
->ih_comp
) {
539 "Unable to load u-boot images with compression type %d\n",
548 /* TODO: Check CPU type. */
550 if (hdr
->ih_os
== IH_OS_LINUX
) {
558 case IH_TYPE_RAMDISK
:
562 fprintf(stderr
, "Unsupported u-boot image type %d\n", hdr
->ih_type
);
566 data
= g_malloc(hdr
->ih_size
);
568 if (read(fd
, data
, hdr
->ih_size
) != hdr
->ih_size
) {
569 fprintf(stderr
, "Error reading file\n");
574 uint8_t *compressed_data
;
578 compressed_data
= data
;
579 max_bytes
= UBOOT_MAX_GUNZIP_BYTES
;
580 data
= g_malloc(max_bytes
);
582 bytes
= gunzip(data
, max_bytes
, compressed_data
, hdr
->ih_size
);
583 g_free(compressed_data
);
585 fprintf(stderr
, "Unable to decompress gzipped image!\n");
588 hdr
->ih_size
= bytes
;
591 rom_add_blob_fixed(filename
, data
, hdr
->ih_size
, address
);
601 int load_uimage(const char *filename
, hwaddr
*ep
, hwaddr
*loadaddr
,
603 uint64_t (*translate_fn
)(void *, uint64_t),
604 void *translate_opaque
)
606 return load_uboot_image(filename
, ep
, loadaddr
, is_linux
, IH_TYPE_KERNEL
,
607 translate_fn
, translate_opaque
);
610 /* Load a ramdisk. */
611 int load_ramdisk(const char *filename
, hwaddr addr
, uint64_t max_sz
)
613 return load_uboot_image(filename
, NULL
, &addr
, NULL
, IH_TYPE_RAMDISK
,
617 /* Load a gzip-compressed kernel to a dynamically allocated buffer. */
618 int load_image_gzipped_buffer(const char *filename
, uint64_t max_sz
,
621 uint8_t *compressed_data
= NULL
;
622 uint8_t *data
= NULL
;
627 if (!g_file_get_contents(filename
, (char **) &compressed_data
, &len
,
632 /* Is it a gzip-compressed file? */
634 compressed_data
[0] != 0x1f ||
635 compressed_data
[1] != 0x8b) {
639 if (max_sz
> LOAD_IMAGE_MAX_GUNZIP_BYTES
) {
640 max_sz
= LOAD_IMAGE_MAX_GUNZIP_BYTES
;
643 data
= g_malloc(max_sz
);
644 bytes
= gunzip(data
, max_sz
, compressed_data
, len
);
646 fprintf(stderr
, "%s: unable to decompress gzipped kernel file\n",
651 /* trim to actual size and return to caller */
652 *buffer
= g_realloc(data
, bytes
);
654 /* ownership has been transferred to caller */
658 g_free(compressed_data
);
663 /* Load a gzip-compressed kernel. */
664 int load_image_gzipped(const char *filename
, hwaddr addr
, uint64_t max_sz
)
669 bytes
= load_image_gzipped_buffer(filename
, max_sz
, &data
);
671 rom_add_blob_fixed(filename
, data
, bytes
, addr
);
678 * Functions for reboot-persistent memory regions.
679 * - used for vga bios and option roms.
680 * - also linux kernel (-kernel / -initrd).
683 typedef struct Rom Rom
;
689 /* datasize is the amount of memory allocated in "data". If datasize is less
690 * than romsize, it means that the area from datasize to romsize is filled
703 QTAILQ_ENTRY(Rom
) next
;
706 static FWCfgState
*fw_cfg
;
707 static QTAILQ_HEAD(, Rom
) roms
= QTAILQ_HEAD_INITIALIZER(roms
);
709 static void rom_insert(Rom
*rom
)
714 hw_error ("ROM images must be loaded at startup\n");
717 /* list is ordered by load address */
718 QTAILQ_FOREACH(item
, &roms
, next
) {
719 if (rom
->addr
>= item
->addr
)
721 QTAILQ_INSERT_BEFORE(item
, rom
, next
);
724 QTAILQ_INSERT_TAIL(&roms
, rom
, next
);
727 static void fw_cfg_resized(const char *id
, uint64_t length
, void *host
)
730 fw_cfg_modify_file(fw_cfg
, id
+ strlen("/rom@"), host
, length
);
734 static void *rom_set_mr(Rom
*rom
, Object
*owner
, const char *name
)
738 rom
->mr
= g_malloc(sizeof(*rom
->mr
));
739 memory_region_init_resizeable_ram(rom
->mr
, owner
, name
,
740 rom
->datasize
, rom
->romsize
,
743 memory_region_set_readonly(rom
->mr
, true);
744 vmstate_register_ram_global(rom
->mr
);
746 data
= memory_region_get_ram_ptr(rom
->mr
);
747 memcpy(data
, rom
->data
, rom
->datasize
);
752 int rom_add_file(const char *file
, const char *fw_dir
,
753 hwaddr addr
, int32_t bootindex
,
756 MachineClass
*mc
= MACHINE_GET_CLASS(qdev_get_machine());
761 rom
= g_malloc0(sizeof(*rom
));
762 rom
->name
= g_strdup(file
);
763 rom
->path
= qemu_find_file(QEMU_FILE_TYPE_BIOS
, rom
->name
);
764 if (rom
->path
== NULL
) {
765 rom
->path
= g_strdup(file
);
768 fd
= open(rom
->path
, O_RDONLY
| O_BINARY
);
770 fprintf(stderr
, "Could not open option rom '%s': %s\n",
771 rom
->path
, strerror(errno
));
776 rom
->fw_dir
= g_strdup(fw_dir
);
777 rom
->fw_file
= g_strdup(file
);
780 rom
->romsize
= lseek(fd
, 0, SEEK_END
);
781 if (rom
->romsize
== -1) {
782 fprintf(stderr
, "rom: file %-20s: get size error: %s\n",
783 rom
->name
, strerror(errno
));
787 rom
->datasize
= rom
->romsize
;
788 rom
->data
= g_malloc0(rom
->datasize
);
789 lseek(fd
, 0, SEEK_SET
);
790 rc
= read(fd
, rom
->data
, rom
->datasize
);
791 if (rc
!= rom
->datasize
) {
792 fprintf(stderr
, "rom: file %-20s: read error: rc=%d (expected %zd)\n",
793 rom
->name
, rc
, rom
->datasize
);
798 if (rom
->fw_file
&& fw_cfg
) {
799 const char *basename
;
800 char fw_file_name
[FW_CFG_MAX_FILE_PATH
];
803 basename
= strrchr(rom
->fw_file
, '/');
807 basename
= rom
->fw_file
;
809 snprintf(fw_file_name
, sizeof(fw_file_name
), "%s/%s", rom
->fw_dir
,
811 snprintf(devpath
, sizeof(devpath
), "/rom@%s", fw_file_name
);
813 if ((!option_rom
|| mc
->option_rom_has_mr
) && mc
->rom_file_has_mr
) {
814 data
= rom_set_mr(rom
, OBJECT(fw_cfg
), devpath
);
819 fw_cfg_add_file(fw_cfg
, fw_file_name
, data
, rom
->romsize
);
821 snprintf(devpath
, sizeof(devpath
), "/rom@" TARGET_FMT_plx
, addr
);
824 add_boot_device_path(bootindex
, NULL
, devpath
);
837 MemoryRegion
*rom_add_blob(const char *name
, const void *blob
, size_t len
,
838 size_t max_len
, hwaddr addr
, const char *fw_file_name
,
839 FWCfgReadCallback fw_callback
, void *callback_opaque
)
841 MachineClass
*mc
= MACHINE_GET_CLASS(qdev_get_machine());
843 MemoryRegion
*mr
= NULL
;
845 rom
= g_malloc0(sizeof(*rom
));
846 rom
->name
= g_strdup(name
);
848 rom
->romsize
= max_len
? max_len
: len
;
850 rom
->data
= g_malloc0(rom
->datasize
);
851 memcpy(rom
->data
, blob
, len
);
853 if (fw_file_name
&& fw_cfg
) {
857 snprintf(devpath
, sizeof(devpath
), "/rom@%s", fw_file_name
);
859 if (mc
->rom_file_has_mr
) {
860 data
= rom_set_mr(rom
, OBJECT(fw_cfg
), devpath
);
866 fw_cfg_add_file_callback(fw_cfg
, fw_file_name
,
867 fw_callback
, callback_opaque
,
868 data
, rom
->datasize
);
873 /* This function is specific for elf program because we don't need to allocate
874 * all the rom. We just allocate the first part and the rest is just zeros. This
875 * is why romsize and datasize are different. Also, this function seize the
876 * memory ownership of "data", so we don't have to allocate and copy the buffer.
878 int rom_add_elf_program(const char *name
, void *data
, size_t datasize
,
879 size_t romsize
, hwaddr addr
)
883 rom
= g_malloc0(sizeof(*rom
));
884 rom
->name
= g_strdup(name
);
886 rom
->datasize
= datasize
;
887 rom
->romsize
= romsize
;
893 int rom_add_vga(const char *file
)
895 return rom_add_file(file
, "vgaroms", 0, -1, true);
898 int rom_add_option(const char *file
, int32_t bootindex
)
900 return rom_add_file(file
, "genroms", 0, bootindex
, true);
903 static void rom_reset(void *unused
)
907 QTAILQ_FOREACH(rom
, &roms
, next
) {
911 if (rom
->data
== NULL
) {
915 void *host
= memory_region_get_ram_ptr(rom
->mr
);
916 memcpy(host
, rom
->data
, rom
->datasize
);
918 cpu_physical_memory_write_rom(&address_space_memory
,
919 rom
->addr
, rom
->data
, rom
->datasize
);
922 /* rom needs to be written only once */
927 * The rom loader is really on the same level as firmware in the guest
928 * shadowing a ROM into RAM. Such a shadowing mechanism needs to ensure
929 * that the instruction cache for that new region is clear, so that the
930 * CPU definitely fetches its instructions from the just written data.
932 cpu_flush_icache_range(rom
->addr
, rom
->datasize
);
936 int rom_check_and_register_reset(void)
939 MemoryRegionSection section
;
942 QTAILQ_FOREACH(rom
, &roms
, next
) {
946 if (addr
> rom
->addr
) {
947 fprintf(stderr
, "rom: requested regions overlap "
948 "(rom %s. free=0x" TARGET_FMT_plx
949 ", addr=0x" TARGET_FMT_plx
")\n",
950 rom
->name
, addr
, rom
->addr
);
954 addr
+= rom
->romsize
;
955 section
= memory_region_find(get_system_memory(), rom
->addr
, 1);
956 rom
->isrom
= int128_nz(section
.size
) && memory_region_is_rom(section
.mr
);
957 memory_region_unref(section
.mr
);
959 qemu_register_reset(rom_reset
, NULL
);
964 void rom_set_fw(FWCfgState
*f
)
969 static Rom
*find_rom(hwaddr addr
)
973 QTAILQ_FOREACH(rom
, &roms
, next
) {
980 if (rom
->addr
> addr
) {
983 if (rom
->addr
+ rom
->romsize
< addr
) {
992 * Copies memory from registered ROMs to dest. Any memory that is contained in
993 * a ROM between addr and addr + size is copied. Note that this can involve
994 * multiple ROMs, which need not start at addr and need not end at addr + size.
996 int rom_copy(uint8_t *dest
, hwaddr addr
, size_t size
)
998 hwaddr end
= addr
+ size
;
999 uint8_t *s
, *d
= dest
;
1003 QTAILQ_FOREACH(rom
, &roms
, next
) {
1010 if (rom
->addr
+ rom
->romsize
< addr
) {
1013 if (rom
->addr
> end
) {
1017 d
= dest
+ (rom
->addr
- addr
);
1021 if ((d
+ l
) > (dest
+ size
)) {
1029 if (rom
->romsize
> rom
->datasize
) {
1030 /* If datasize is less than romsize, it means that we didn't
1031 * allocate all the ROM because the trailing data are only zeros.
1035 l
= rom
->romsize
- rom
->datasize
;
1037 if ((d
+ l
) > (dest
+ size
)) {
1038 /* Rom size doesn't fit in the destination area. Adjust to avoid
1050 return (d
+ l
) - dest
;
1053 void *rom_ptr(hwaddr addr
)
1057 rom
= find_rom(addr
);
1058 if (!rom
|| !rom
->data
)
1060 return rom
->data
+ (addr
- rom
->addr
);
1063 void hmp_info_roms(Monitor
*mon
, const QDict
*qdict
)
1067 QTAILQ_FOREACH(rom
, &roms
, next
) {
1069 monitor_printf(mon
, "%s"
1070 " size=0x%06zx name=\"%s\"\n",
1071 memory_region_name(rom
->mr
),
1074 } else if (!rom
->fw_file
) {
1075 monitor_printf(mon
, "addr=" TARGET_FMT_plx
1076 " size=0x%06zx mem=%s name=\"%s\"\n",
1077 rom
->addr
, rom
->romsize
,
1078 rom
->isrom
? "rom" : "ram",
1081 monitor_printf(mon
, "fw=%s/%s"
1082 " size=0x%06zx name=\"%s\"\n",