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 const char *load_elf_strerror(int error); 93 94 /** load_elf_ram_sym: 95 * @filename: Path of ELF file 96 * @elf_note_fn: optional function to parse ELF Note type 97 * passed via @translate_opaque 98 * @translate_fn: optional function to translate load addresses 99 * @translate_opaque: opaque data passed to @translate_fn 100 * @pentry: Populated with program entry point. Ignored if NULL. 101 * @lowaddr: Populated with lowest loaded address. Ignored if NULL. 102 * @highaddr: Populated with highest loaded address. Ignored if NULL. 103 * @bigendian: Expected ELF endianness. 0 for LE otherwise BE 104 * @elf_machine: Expected ELF machine type 105 * @clear_lsb: Set to mask off LSB of addresses (Some architectures use 106 * this for non-address data) 107 * @data_swab: Set to order of byte swapping for data. 0 for no swap, 1 108 * for swapping bytes within halfwords, 2 for bytes within 109 * words and 3 for within doublewords. 110 * @as: The AddressSpace to load the ELF to. The value of address_space_memory 111 * is used if nothing is supplied here. 112 * @load_rom : Load ELF binary as ROM 113 * @sym_cb: Callback function for symbol table entries 114 * 115 * Load an ELF file's contents to the emulated system's address space. 116 * Clients may optionally specify a callback to perform address 117 * translations. @pentry, @lowaddr and @highaddr are optional pointers 118 * which will be populated with various load information. @bigendian and 119 * @elf_machine give the expected endianness and machine for the ELF the 120 * load will fail if the target ELF does not match. Some architectures 121 * have some architecture-specific behaviours that come into effect when 122 * their particular values for @elf_machine are set. 123 * If @elf_machine is EM_NONE then the machine type will be read from the 124 * ELF header and no checks will be carried out against the machine type. 125 */ 126 typedef void (*symbol_fn_t)(const char *st_name, int st_info, 127 uint64_t st_value, uint64_t st_size); 128 129 int load_elf_ram_sym(const char *filename, 130 uint64_t (*elf_note_fn)(void *, void *, bool), 131 uint64_t (*translate_fn)(void *, uint64_t), 132 void *translate_opaque, uint64_t *pentry, 133 uint64_t *lowaddr, uint64_t *highaddr, int big_endian, 134 int elf_machine, int clear_lsb, int data_swab, 135 AddressSpace *as, bool load_rom, symbol_fn_t sym_cb); 136 137 /** load_elf_ram: 138 * Same as load_elf_ram_sym(), but doesn't allow the caller to specify a 139 * symbol callback function 140 */ 141 int load_elf_ram(const char *filename, 142 uint64_t (*elf_note_fn)(void *, void *, bool), 143 uint64_t (*translate_fn)(void *, uint64_t), 144 void *translate_opaque, uint64_t *pentry, uint64_t *lowaddr, 145 uint64_t *highaddr, int big_endian, int elf_machine, 146 int clear_lsb, int data_swab, AddressSpace *as, 147 bool load_rom); 148 149 /** load_elf_as: 150 * Same as load_elf_ram(), but always loads the elf as ROM 151 */ 152 int load_elf_as(const char *filename, 153 uint64_t (*elf_note_fn)(void *, void *, bool), 154 uint64_t (*translate_fn)(void *, uint64_t), 155 void *translate_opaque, uint64_t *pentry, uint64_t *lowaddr, 156 uint64_t *highaddr, int big_endian, int elf_machine, 157 int clear_lsb, int data_swab, AddressSpace *as); 158 159 /** load_elf: 160 * Same as load_elf_as(), but doesn't allow the caller to specify an 161 * AddressSpace. 162 */ 163 int load_elf(const char *filename, 164 uint64_t (*elf_note_fn)(void *, void *, bool), 165 uint64_t (*translate_fn)(void *, uint64_t), 166 void *translate_opaque, uint64_t *pentry, uint64_t *lowaddr, 167 uint64_t *highaddr, int big_endian, int elf_machine, 168 int clear_lsb, int data_swab); 169 170 /** load_elf_hdr: 171 * @filename: Path of ELF file 172 * @hdr: Buffer to populate with header data. Header data will not be 173 * filled if set to NULL. 174 * @is64: Set to true if the ELF is 64bit. Ignored if set to NULL 175 * @errp: Populated with an error in failure cases 176 * 177 * Inspect an ELF file's header. Read its full header contents into a 178 * buffer and/or determine if the ELF is 64bit. 179 */ 180 void load_elf_hdr(const char *filename, void *hdr, bool *is64, Error **errp); 181 182 int load_aout(const char *filename, hwaddr addr, int max_sz, 183 int bswap_needed, hwaddr target_page_size); 184 185 #define LOAD_UIMAGE_LOADADDR_INVALID (-1) 186 187 /** load_uimage_as: 188 * @filename: Path of uimage file 189 * @ep: Populated with program entry point. Ignored if NULL. 190 * @loadaddr: load address if none specified in the image or when loading a 191 * ramdisk. Populated with the load address. Ignored if NULL or 192 * LOAD_UIMAGE_LOADADDR_INVALID (images which do not specify a load 193 * address will not be loadable). 194 * @is_linux: Is set to true if the image loaded is Linux. Ignored if NULL. 195 * @translate_fn: optional function to translate load addresses 196 * @translate_opaque: opaque data passed to @translate_fn 197 * @as: The AddressSpace to load the ELF to. The value of address_space_memory 198 * is used if nothing is supplied here. 199 * 200 * Loads a u-boot image into memory. 201 * 202 * Returns the size of the loaded image on success, -1 otherwise. 203 */ 204 int load_uimage_as(const char *filename, hwaddr *ep, 205 hwaddr *loadaddr, int *is_linux, 206 uint64_t (*translate_fn)(void *, uint64_t), 207 void *translate_opaque, AddressSpace *as); 208 209 /** load_uimage: 210 * Same as load_uimage_as(), but doesn't allow the caller to specify an 211 * AddressSpace. 212 */ 213 int load_uimage(const char *filename, hwaddr *ep, 214 hwaddr *loadaddr, int *is_linux, 215 uint64_t (*translate_fn)(void *, uint64_t), 216 void *translate_opaque); 217 218 /** 219 * load_ramdisk_as: 220 * @filename: Path to the ramdisk image 221 * @addr: Memory address to load the ramdisk to 222 * @max_sz: Maximum allowed ramdisk size (for non-u-boot ramdisks) 223 * @as: The AddressSpace to load the ELF to. The value of address_space_memory 224 * is used if nothing is supplied here. 225 * 226 * Load a ramdisk image with U-Boot header to the specified memory 227 * address. 228 * 229 * Returns the size of the loaded image on success, -1 otherwise. 230 */ 231 int load_ramdisk_as(const char *filename, hwaddr addr, uint64_t max_sz, 232 AddressSpace *as); 233 234 /** 235 * load_ramdisk: 236 * Same as load_ramdisk_as(), but doesn't allow the caller to specify 237 * an AddressSpace. 238 */ 239 int load_ramdisk(const char *filename, hwaddr addr, uint64_t max_sz); 240 241 ssize_t gunzip(void *dst, size_t dstlen, uint8_t *src, size_t srclen); 242 243 ssize_t read_targphys(const char *name, 244 int fd, hwaddr dst_addr, size_t nbytes); 245 void pstrcpy_targphys(const char *name, 246 hwaddr dest, int buf_size, 247 const char *source); 248 249 extern bool option_rom_has_mr; 250 extern bool rom_file_has_mr; 251 252 int rom_add_file(const char *file, const char *fw_dir, 253 hwaddr addr, int32_t bootindex, 254 bool option_rom, MemoryRegion *mr, AddressSpace *as); 255 MemoryRegion *rom_add_blob(const char *name, const void *blob, size_t len, 256 size_t max_len, hwaddr addr, 257 const char *fw_file_name, 258 FWCfgCallback fw_callback, 259 void *callback_opaque, AddressSpace *as, 260 bool read_only); 261 int rom_add_elf_program(const char *name, GMappedFile *mapped_file, void *data, 262 size_t datasize, size_t romsize, hwaddr addr, 263 AddressSpace *as); 264 int rom_check_and_register_reset(void); 265 void rom_set_fw(FWCfgState *f); 266 void rom_set_order_override(int order); 267 void rom_reset_order_override(void); 268 269 /** 270 * rom_transaction_begin: 271 * 272 * Call this before of a series of rom_add_*() calls. Call 273 * rom_transaction_end() afterwards to commit or abort. These functions are 274 * useful for undoing a series of rom_add_*() calls if image file loading fails 275 * partway through. 276 */ 277 void rom_transaction_begin(void); 278 279 /** 280 * rom_transaction_end: 281 * @commit: true to commit added roms, false to drop added roms 282 * 283 * Call this after a series of rom_add_*() calls. See rom_transaction_begin(). 284 */ 285 void rom_transaction_end(bool commit); 286 287 int rom_copy(uint8_t *dest, hwaddr addr, size_t size); 288 void *rom_ptr(hwaddr addr, size_t size); 289 void hmp_info_roms(Monitor *mon, const QDict *qdict); 290 291 #define rom_add_file_fixed(_f, _a, _i) \ 292 rom_add_file(_f, NULL, _a, _i, false, NULL, NULL) 293 #define rom_add_blob_fixed(_f, _b, _l, _a) \ 294 rom_add_blob(_f, _b, _l, _l, _a, NULL, NULL, NULL, NULL, true) 295 #define rom_add_file_mr(_f, _mr, _i) \ 296 rom_add_file(_f, NULL, 0, _i, false, _mr, NULL) 297 #define rom_add_file_as(_f, _as, _i) \ 298 rom_add_file(_f, NULL, 0, _i, false, NULL, _as) 299 #define rom_add_file_fixed_as(_f, _a, _i, _as) \ 300 rom_add_file(_f, NULL, _a, _i, false, NULL, _as) 301 #define rom_add_blob_fixed_as(_f, _b, _l, _a, _as) \ 302 rom_add_blob(_f, _b, _l, _l, _a, NULL, NULL, NULL, _as, true) 303 304 #define PC_ROM_MIN_VGA 0xc0000 305 #define PC_ROM_MIN_OPTION 0xc8000 306 #define PC_ROM_MAX 0xe0000 307 #define PC_ROM_ALIGN 0x800 308 #define PC_ROM_SIZE (PC_ROM_MAX - PC_ROM_MIN_VGA) 309 310 int rom_add_vga(const char *file); 311 int rom_add_option(const char *file, int32_t bootindex); 312 313 /* This is the usual maximum in uboot, so if a uImage overflows this, it would 314 * overflow on real hardware too. */ 315 #define UBOOT_MAX_GUNZIP_BYTES (64 << 20) 316 317 #endif 318