xref: /qemu/include/hw/loader.h (revision 67cc32eb)
1 #ifndef LOADER_H
2 #define LOADER_H
3 #include "qapi/qmp/qdict.h"
4 #include "hw/nvram/fw_cfg.h"
5 
6 /* loader.c */
7 /**
8  * get_image_size: retrieve size of an image file
9  * @filename: Path to the image file
10  *
11  * Returns the size of the image file on success, -1 otherwise.
12  * On error, errno is also set as appropriate.
13  */
14 int get_image_size(const char *filename);
15 int load_image(const char *filename, uint8_t *addr); /* deprecated */
16 ssize_t load_image_size(const char *filename, void *addr, size_t size);
17 int load_image_targphys(const char *filename, hwaddr,
18                         uint64_t max_sz);
19 
20 /* This is the limit on the maximum uncompressed image size that
21  * load_image_gzipped_buffer() and load_image_gzipped() will read. It prevents
22  * g_malloc() in those functions from allocating a huge amount of memory.
23  */
24 #define LOAD_IMAGE_MAX_GUNZIP_BYTES (256 << 20)
25 
26 int load_image_gzipped_buffer(const char *filename, uint64_t max_sz,
27                               uint8_t **buffer);
28 int load_image_gzipped(const char *filename, hwaddr addr, uint64_t max_sz);
29 
30 #define ELF_LOAD_FAILED       -1
31 #define ELF_LOAD_NOT_ELF      -2
32 #define ELF_LOAD_WRONG_ARCH   -3
33 #define ELF_LOAD_WRONG_ENDIAN -4
34 const char *load_elf_strerror(int error);
35 int load_elf(const char *filename, uint64_t (*translate_fn)(void *, uint64_t),
36              void *translate_opaque, uint64_t *pentry, uint64_t *lowaddr,
37              uint64_t *highaddr, int big_endian, int elf_machine,
38              int clear_lsb);
39 int load_aout(const char *filename, hwaddr addr, int max_sz,
40               int bswap_needed, hwaddr target_page_size);
41 int load_uimage(const char *filename, hwaddr *ep,
42                 hwaddr *loadaddr, int *is_linux,
43                 uint64_t (*translate_fn)(void *, uint64_t),
44                 void *translate_opaque);
45 
46 /**
47  * load_ramdisk:
48  * @filename: Path to the ramdisk image
49  * @addr: Memory address to load the ramdisk to
50  * @max_sz: Maximum allowed ramdisk size (for non-u-boot ramdisks)
51  *
52  * Load a ramdisk image with U-Boot header to the specified memory
53  * address.
54  *
55  * Returns the size of the loaded image on success, -1 otherwise.
56  */
57 int load_ramdisk(const char *filename, hwaddr addr, uint64_t max_sz);
58 
59 ssize_t read_targphys(const char *name,
60                       int fd, hwaddr dst_addr, size_t nbytes);
61 void pstrcpy_targphys(const char *name,
62                       hwaddr dest, int buf_size,
63                       const char *source);
64 
65 extern bool option_rom_has_mr;
66 extern bool rom_file_has_mr;
67 
68 int rom_add_file(const char *file, const char *fw_dir,
69                  hwaddr addr, int32_t bootindex,
70                  bool option_rom);
71 MemoryRegion *rom_add_blob(const char *name, const void *blob, size_t len,
72                            size_t max_len, hwaddr addr,
73                            const char *fw_file_name,
74                            FWCfgReadCallback fw_callback,
75                            void *callback_opaque);
76 int rom_add_elf_program(const char *name, void *data, size_t datasize,
77                         size_t romsize, hwaddr addr);
78 int rom_check_and_register_reset(void);
79 void rom_set_fw(FWCfgState *f);
80 int rom_copy(uint8_t *dest, hwaddr addr, size_t size);
81 void *rom_ptr(hwaddr addr);
82 void hmp_info_roms(Monitor *mon, const QDict *qdict);
83 
84 #define rom_add_file_fixed(_f, _a, _i)          \
85     rom_add_file(_f, NULL, _a, _i, false)
86 #define rom_add_blob_fixed(_f, _b, _l, _a)      \
87     rom_add_blob(_f, _b, _l, _l, _a, NULL, NULL, NULL)
88 
89 #define PC_ROM_MIN_VGA     0xc0000
90 #define PC_ROM_MIN_OPTION  0xc8000
91 #define PC_ROM_MAX         0xe0000
92 #define PC_ROM_ALIGN       0x800
93 #define PC_ROM_SIZE        (PC_ROM_MAX - PC_ROM_MIN_VGA)
94 
95 int rom_add_vga(const char *file);
96 int rom_add_option(const char *file, int32_t bootindex);
97 
98 #endif
99