1 #ifndef LOADER_H 2 #define LOADER_H 3 #include "hw/nvram/fw_cfg.h" 4 5 /* loader.c */ 6 /** 7 * get_image_size: retrieve size of an image file 8 * @filename: Path to the image file 9 * 10 * Returns the size of the image file on success, -1 otherwise. 11 * On error, errno is also set as appropriate. 12 */ 13 int64_t get_image_size(const char *filename); 14 /** 15 * load_image_size: load an image file into specified buffer 16 * @filename: Path to the image file 17 * @addr: Buffer to load image into 18 * @size: Size of buffer in bytes 19 * 20 * Load an image file from disk into the specified buffer. 21 * If the image is larger than the specified buffer, only 22 * @size bytes are read (this is not considered an error). 23 * 24 * Prefer to use the GLib function g_file_get_contents() rather 25 * than a "get_image_size()/g_malloc()/load_image_size()" sequence. 26 * 27 * Returns the number of bytes read, or -1 on error. On error, 28 * errno is also set as appropriate. 29 */ 30 ssize_t load_image_size(const char *filename, void *addr, size_t size); 31 32 /**load_image_targphys_as: 33 * @filename: Path to the image file 34 * @addr: Address to load the image to 35 * @max_sz: The maximum size of the image to load 36 * @as: The AddressSpace to load the ELF to. The value of address_space_memory 37 * is used if nothing is supplied here. 38 * 39 * Load a fixed image into memory. 40 * 41 * Returns the size of the loaded image on success, -1 otherwise. 42 */ 43 int load_image_targphys_as(const char *filename, 44 hwaddr addr, uint64_t max_sz, AddressSpace *as); 45 46 /**load_targphys_hex_as: 47 * @filename: Path to the .hex file 48 * @entry: Store the entry point given by the .hex file 49 * @as: The AddressSpace to load the .hex file to. The value of 50 * address_space_memory is used if nothing is supplied here. 51 * 52 * Load a fixed .hex file into memory. 53 * 54 * Returns the size of the loaded .hex file on success, -1 otherwise. 55 */ 56 int load_targphys_hex_as(const char *filename, hwaddr *entry, AddressSpace *as); 57 58 /** load_image_targphys: 59 * Same as load_image_targphys_as(), but doesn't allow the caller to specify 60 * an AddressSpace. 61 */ 62 int load_image_targphys(const char *filename, hwaddr, 63 uint64_t max_sz); 64 65 /** 66 * load_image_mr: load an image into a memory region 67 * @filename: Path to the image file 68 * @mr: Memory Region to load into 69 * 70 * Load the specified file into the memory region. 71 * The file loaded is registered as a ROM, so its contents will be 72 * reinstated whenever the system is reset. 73 * If the file is larger than the memory region's size the call will fail. 74 * Returns -1 on failure, or the size of the file. 75 */ 76 int load_image_mr(const char *filename, MemoryRegion *mr); 77 78 /* This is the limit on the maximum uncompressed image size that 79 * load_image_gzipped_buffer() and load_image_gzipped() will read. It prevents 80 * g_malloc() in those functions from allocating a huge amount of memory. 81 */ 82 #define LOAD_IMAGE_MAX_GUNZIP_BYTES (256 << 20) 83 84 int load_image_gzipped_buffer(const char *filename, uint64_t max_sz, 85 uint8_t **buffer); 86 int load_image_gzipped(const char *filename, hwaddr addr, uint64_t max_sz); 87 88 #define ELF_LOAD_FAILED -1 89 #define ELF_LOAD_NOT_ELF -2 90 #define ELF_LOAD_WRONG_ARCH -3 91 #define ELF_LOAD_WRONG_ENDIAN -4 92 #define ELF_LOAD_TOO_BIG -5 93 const char *load_elf_strerror(int error); 94 95 /** load_elf_ram_sym: 96 * @filename: Path of ELF file 97 * @elf_note_fn: optional function to parse ELF Note type 98 * passed via @translate_opaque 99 * @translate_fn: optional function to translate load addresses 100 * @translate_opaque: opaque data passed to @translate_fn 101 * @pentry: Populated with program entry point. Ignored if NULL. 102 * @lowaddr: Populated with lowest loaded address. Ignored if NULL. 103 * @highaddr: Populated with highest loaded address. Ignored if NULL. 104 * @bigendian: Expected ELF endianness. 0 for LE otherwise BE 105 * @elf_machine: Expected ELF machine type 106 * @clear_lsb: Set to mask off LSB of addresses (Some architectures use 107 * this for non-address data) 108 * @data_swab: Set to order of byte swapping for data. 0 for no swap, 1 109 * for swapping bytes within halfwords, 2 for bytes within 110 * words and 3 for within doublewords. 111 * @as: The AddressSpace to load the ELF to. The value of address_space_memory 112 * is used if nothing is supplied here. 113 * @load_rom : Load ELF binary as ROM 114 * @sym_cb: Callback function for symbol table entries 115 * 116 * Load an ELF file's contents to the emulated system's address space. 117 * Clients may optionally specify a callback to perform address 118 * translations. @pentry, @lowaddr and @highaddr are optional pointers 119 * which will be populated with various load information. @bigendian and 120 * @elf_machine give the expected endianness and machine for the ELF the 121 * load will fail if the target ELF does not match. Some architectures 122 * have some architecture-specific behaviours that come into effect when 123 * their particular values for @elf_machine are set. 124 * If @elf_machine is EM_NONE then the machine type will be read from the 125 * ELF header and no checks will be carried out against the machine type. 126 */ 127 typedef void (*symbol_fn_t)(const char *st_name, int st_info, 128 uint64_t st_value, uint64_t st_size); 129 130 int load_elf_ram_sym(const char *filename, 131 uint64_t (*elf_note_fn)(void *, void *, bool), 132 uint64_t (*translate_fn)(void *, uint64_t), 133 void *translate_opaque, uint64_t *pentry, 134 uint64_t *lowaddr, uint64_t *highaddr, int big_endian, 135 int elf_machine, int clear_lsb, int data_swab, 136 AddressSpace *as, bool load_rom, symbol_fn_t sym_cb); 137 138 /** load_elf_ram: 139 * Same as load_elf_ram_sym(), but doesn't allow the caller to specify a 140 * symbol callback function 141 */ 142 int load_elf_ram(const char *filename, 143 uint64_t (*elf_note_fn)(void *, void *, bool), 144 uint64_t (*translate_fn)(void *, uint64_t), 145 void *translate_opaque, uint64_t *pentry, uint64_t *lowaddr, 146 uint64_t *highaddr, int big_endian, int elf_machine, 147 int clear_lsb, int data_swab, AddressSpace *as, 148 bool load_rom); 149 150 /** load_elf_as: 151 * Same as load_elf_ram(), but always loads the elf as ROM 152 */ 153 int load_elf_as(const char *filename, 154 uint64_t (*elf_note_fn)(void *, void *, bool), 155 uint64_t (*translate_fn)(void *, uint64_t), 156 void *translate_opaque, uint64_t *pentry, uint64_t *lowaddr, 157 uint64_t *highaddr, int big_endian, int elf_machine, 158 int clear_lsb, int data_swab, AddressSpace *as); 159 160 /** load_elf: 161 * Same as load_elf_as(), but doesn't allow the caller to specify an 162 * AddressSpace. 163 */ 164 int load_elf(const char *filename, 165 uint64_t (*elf_note_fn)(void *, void *, bool), 166 uint64_t (*translate_fn)(void *, uint64_t), 167 void *translate_opaque, uint64_t *pentry, uint64_t *lowaddr, 168 uint64_t *highaddr, int big_endian, int elf_machine, 169 int clear_lsb, int data_swab); 170 171 /** load_elf_hdr: 172 * @filename: Path of ELF file 173 * @hdr: Buffer to populate with header data. Header data will not be 174 * filled if set to NULL. 175 * @is64: Set to true if the ELF is 64bit. Ignored if set to NULL 176 * @errp: Populated with an error in failure cases 177 * 178 * Inspect an ELF file's header. Read its full header contents into a 179 * buffer and/or determine if the ELF is 64bit. 180 */ 181 void load_elf_hdr(const char *filename, void *hdr, bool *is64, Error **errp); 182 183 int load_aout(const char *filename, hwaddr addr, int max_sz, 184 int bswap_needed, hwaddr target_page_size); 185 186 #define LOAD_UIMAGE_LOADADDR_INVALID (-1) 187 188 /** load_uimage_as: 189 * @filename: Path of uimage file 190 * @ep: Populated with program entry point. Ignored if NULL. 191 * @loadaddr: load address if none specified in the image or when loading a 192 * ramdisk. Populated with the load address. Ignored if NULL or 193 * LOAD_UIMAGE_LOADADDR_INVALID (images which do not specify a load 194 * address will not be loadable). 195 * @is_linux: Is set to true if the image loaded is Linux. Ignored if NULL. 196 * @translate_fn: optional function to translate load addresses 197 * @translate_opaque: opaque data passed to @translate_fn 198 * @as: The AddressSpace to load the ELF to. The value of address_space_memory 199 * is used if nothing is supplied here. 200 * 201 * Loads a u-boot image into memory. 202 * 203 * Returns the size of the loaded image on success, -1 otherwise. 204 */ 205 int load_uimage_as(const char *filename, hwaddr *ep, 206 hwaddr *loadaddr, int *is_linux, 207 uint64_t (*translate_fn)(void *, uint64_t), 208 void *translate_opaque, AddressSpace *as); 209 210 /** load_uimage: 211 * Same as load_uimage_as(), but doesn't allow the caller to specify an 212 * AddressSpace. 213 */ 214 int load_uimage(const char *filename, hwaddr *ep, 215 hwaddr *loadaddr, int *is_linux, 216 uint64_t (*translate_fn)(void *, uint64_t), 217 void *translate_opaque); 218 219 /** 220 * load_ramdisk_as: 221 * @filename: Path to the ramdisk image 222 * @addr: Memory address to load the ramdisk to 223 * @max_sz: Maximum allowed ramdisk size (for non-u-boot ramdisks) 224 * @as: The AddressSpace to load the ELF to. The value of address_space_memory 225 * is used if nothing is supplied here. 226 * 227 * Load a ramdisk image with U-Boot header to the specified memory 228 * address. 229 * 230 * Returns the size of the loaded image on success, -1 otherwise. 231 */ 232 int load_ramdisk_as(const char *filename, hwaddr addr, uint64_t max_sz, 233 AddressSpace *as); 234 235 /** 236 * load_ramdisk: 237 * Same as load_ramdisk_as(), but doesn't allow the caller to specify 238 * an AddressSpace. 239 */ 240 int load_ramdisk(const char *filename, hwaddr addr, uint64_t max_sz); 241 242 ssize_t gunzip(void *dst, size_t dstlen, uint8_t *src, size_t srclen); 243 244 ssize_t read_targphys(const char *name, 245 int fd, hwaddr dst_addr, size_t nbytes); 246 void pstrcpy_targphys(const char *name, 247 hwaddr dest, int buf_size, 248 const char *source); 249 250 extern bool option_rom_has_mr; 251 extern bool rom_file_has_mr; 252 253 int rom_add_file(const char *file, const char *fw_dir, 254 hwaddr addr, int32_t bootindex, 255 bool option_rom, MemoryRegion *mr, AddressSpace *as); 256 MemoryRegion *rom_add_blob(const char *name, const void *blob, size_t len, 257 size_t max_len, hwaddr addr, 258 const char *fw_file_name, 259 FWCfgCallback fw_callback, 260 void *callback_opaque, AddressSpace *as, 261 bool read_only); 262 int rom_add_elf_program(const char *name, GMappedFile *mapped_file, void *data, 263 size_t datasize, size_t romsize, hwaddr addr, 264 AddressSpace *as); 265 int rom_check_and_register_reset(void); 266 void rom_set_fw(FWCfgState *f); 267 void rom_set_order_override(int order); 268 void rom_reset_order_override(void); 269 270 /** 271 * rom_transaction_begin: 272 * 273 * Call this before of a series of rom_add_*() calls. Call 274 * rom_transaction_end() afterwards to commit or abort. These functions are 275 * useful for undoing a series of rom_add_*() calls if image file loading fails 276 * partway through. 277 */ 278 void rom_transaction_begin(void); 279 280 /** 281 * rom_transaction_end: 282 * @commit: true to commit added roms, false to drop added roms 283 * 284 * Call this after a series of rom_add_*() calls. See rom_transaction_begin(). 285 */ 286 void rom_transaction_end(bool commit); 287 288 int rom_copy(uint8_t *dest, hwaddr addr, size_t size); 289 void *rom_ptr(hwaddr addr, size_t size); 290 void hmp_info_roms(Monitor *mon, const QDict *qdict); 291 292 #define rom_add_file_fixed(_f, _a, _i) \ 293 rom_add_file(_f, NULL, _a, _i, false, NULL, NULL) 294 #define rom_add_blob_fixed(_f, _b, _l, _a) \ 295 rom_add_blob(_f, _b, _l, _l, _a, NULL, NULL, NULL, NULL, true) 296 #define rom_add_file_mr(_f, _mr, _i) \ 297 rom_add_file(_f, NULL, 0, _i, false, _mr, NULL) 298 #define rom_add_file_as(_f, _as, _i) \ 299 rom_add_file(_f, NULL, 0, _i, false, NULL, _as) 300 #define rom_add_file_fixed_as(_f, _a, _i, _as) \ 301 rom_add_file(_f, NULL, _a, _i, false, NULL, _as) 302 #define rom_add_blob_fixed_as(_f, _b, _l, _a, _as) \ 303 rom_add_blob(_f, _b, _l, _l, _a, NULL, NULL, NULL, _as, true) 304 305 #define PC_ROM_MIN_VGA 0xc0000 306 #define PC_ROM_MIN_OPTION 0xc8000 307 #define PC_ROM_MAX 0xe0000 308 #define PC_ROM_ALIGN 0x800 309 #define PC_ROM_SIZE (PC_ROM_MAX - PC_ROM_MIN_VGA) 310 311 int rom_add_vga(const char *file); 312 int rom_add_option(const char *file, int32_t bootindex); 313 314 /* This is the usual maximum in uboot, so if a uImage overflows this, it would 315 * overflow on real hardware too. */ 316 #define UBOOT_MAX_GUNZIP_BYTES (64 << 20) 317 318 #endif 319