include/hw/loader.h

   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
  18 /**load_image_targphys_as:
  19  * @filename: Path to the image file
  20  * @addr: Address to load the image to
  21  * @max_sz: The maximum size of the image to load
  22  * @as: The AddressSpace to load the ELF to. The value of address_space_memory
  23  *      is used if nothing is supplied here.
  24  *
  25  * Load a fixed image into memory.
  26  *
  27  * Returns the size of the loaded image on success, -1 otherwise.
  28  */
  29 int load_image_targphys_as(const char *filename,
  30                            hwaddr addr, uint64_t max_sz, AddressSpace *as);
  31
  32 /** load_image_targphys:
  33  * Same as load_image_targphys_as(), but doesn't allow the caller to specify
  34  * an AddressSpace.
  35  */
  36 int load_image_targphys(const char *filename, hwaddr,
  37                         uint64_t max_sz);
  38
  39 /**
  40  * load_image_mr: load an image into a memory region
  41  * @filename: Path to the image file
  42  * @mr: Memory Region to load into
  43  *
  44  * Load the specified file into the memory region.
  45  * The file loaded is registered as a ROM, so its contents will be
  46  * reinstated whenever the system is reset.
  47  * If the file is larger than the memory region's size the call will fail.
  48  * Returns -1 on failure, or the size of the file.
  49  */
  50 int load_image_mr(const char *filename, MemoryRegion *mr);
  51
  52 /* This is the limit on the maximum uncompressed image size that
  53  * load_image_gzipped_buffer() and load_image_gzipped() will read. It prevents
  54  * g_malloc() in those functions from allocating a huge amount of memory.
  55  */
  56 #define LOAD_IMAGE_MAX_GUNZIP_BYTES (256 << 20)
  57
  58 int load_image_gzipped_buffer(const char *filename, uint64_t max_sz,
  59                               uint8_t **buffer);
  60 int load_image_gzipped(const char *filename, hwaddr addr, uint64_t max_sz);
  61
  62 #define ELF_LOAD_FAILED       -1
  63 #define ELF_LOAD_NOT_ELF      -2
  64 #define ELF_LOAD_WRONG_ARCH   -3
  65 #define ELF_LOAD_WRONG_ENDIAN -4
  66 const char *load_elf_strerror(int error);
  67
  68 /** load_elf_as:
  69  * @filename: Path of ELF file
  70  * @translate_fn: optional function to translate load addresses
  71  * @translate_opaque: opaque data passed to @translate_fn
  72  * @pentry: Populated with program entry point. Ignored if NULL.
  73  * @lowaddr: Populated with lowest loaded address. Ignored if NULL.
  74  * @highaddr: Populated with highest loaded address. Ignored if NULL.
  75  * @bigendian: Expected ELF endianness. 0 for LE otherwise BE
  76  * @elf_machine: Expected ELF machine type
  77  * @clear_lsb: Set to mask off LSB of addresses (Some architectures use
  78  *             this for non-address data)
  79  * @data_swab: Set to order of byte swapping for data. 0 for no swap, 1
  80  *             for swapping bytes within halfwords, 2 for bytes within
  81  *             words and 3 for within doublewords.
  82  * @as: The AddressSpace to load the ELF to. The value of address_space_memory
  83  *      is used if nothing is supplied here.
  84  *
  85  * Load an ELF file's contents to the emulated system's address space.
  86  * Clients may optionally specify a callback to perform address
  87  * translations. @pentry, @lowaddr and @highaddr are optional pointers
  88  * which will be populated with various load information. @bigendian and
  89  * @elf_machine give the expected endianness and machine for the ELF the
  90  * load will fail if the target ELF does not match. Some architectures
  91  * have some architecture-specific behaviours that come into effect when
  92  * their particular values for @elf_machine are set.
  93  * If @elf_machine is EM_NONE then the machine type will be read from the
  94  * ELF header and no checks will be carried out against the machine type.
  95  */
  96 int load_elf_as(const char *filename,
  97                 uint64_t (*translate_fn)(void *, uint64_t),
  98                 void *translate_opaque, uint64_t *pentry, uint64_t *lowaddr,
  99                 uint64_t *highaddr, int big_endian, int elf_machine,
 100                 int clear_lsb, int data_swab, AddressSpace *as);
 101
 102 /** load_elf:
 103  * Same as load_elf_as(), but doesn't allow the caller to specify an
 104  * AddressSpace.
 105  */
 106 int load_elf(const char *filename, uint64_t (*translate_fn)(void *, uint64_t),
 107              void *translate_opaque, uint64_t *pentry, uint64_t *lowaddr,
 108              uint64_t *highaddr, int big_endian, int elf_machine,
 109              int clear_lsb, int data_swab);
 110
 111 /** load_elf_hdr:
 112  * @filename: Path of ELF file
 113  * @hdr: Buffer to populate with header data. Header data will not be
 114  * filled if set to NULL.
 115  * @is64: Set to true if the ELF is 64bit. Ignored if set to NULL
 116  * @errp: Populated with an error in failure cases
 117  *
 118  * Inspect an ELF file's header. Read its full header contents into a
 119  * buffer and/or determine if the ELF is 64bit.
 120  */
 121 void load_elf_hdr(const char *filename, void *hdr, bool *is64, Error **errp);
 122
 123 int load_aout(const char *filename, hwaddr addr, int max_sz,
 124               int bswap_needed, hwaddr target_page_size);
 125
 126 /** load_uimage_as:
 127  * @filename: Path of uimage file
 128  * @ep: Populated with program entry point. Ignored if NULL.
 129  * @loadaddr: Populated with the load address. Ignored if NULL.
 130  * @is_linux: Is set to true if the image loaded is Linux. Ignored if NULL.
 131  * @translate_fn: optional function to translate load addresses
 132  * @translate_opaque: opaque data passed to @translate_fn
 133  * @as: The AddressSpace to load the ELF to. The value of address_space_memory
 134  *      is used if nothing is supplied here.
 135  *
 136  * Loads a u-boot image into memory.
 137  *
 138  * Returns the size of the loaded image on success, -1 otherwise.
 139  */
 140 int load_uimage_as(const char *filename, hwaddr *ep,
 141                    hwaddr *loadaddr, int *is_linux,
 142                    uint64_t (*translate_fn)(void *, uint64_t),
 143                    void *translate_opaque, AddressSpace *as);
 144
 145 /** load_uimage:
 146  * Same as load_uimage_as(), but doesn't allow the caller to specify an
 147  * AddressSpace.
 148  */
 149 int load_uimage(const char *filename, hwaddr *ep,
 150                 hwaddr *loadaddr, int *is_linux,
 151                 uint64_t (*translate_fn)(void *, uint64_t),
 152                 void *translate_opaque);
 153
 154 /**
 155  * load_ramdisk:
 156  * @filename: Path to the ramdisk image
 157  * @addr: Memory address to load the ramdisk to
 158  * @max_sz: Maximum allowed ramdisk size (for non-u-boot ramdisks)
 159  *
 160  * Load a ramdisk image with U-Boot header to the specified memory
 161  * address.
 162  *
 163  * Returns the size of the loaded image on success, -1 otherwise.
 164  */
 165 int load_ramdisk(const char *filename, hwaddr addr, uint64_t max_sz);
 166
 167 ssize_t read_targphys(const char *name,
 168                       int fd, hwaddr dst_addr, size_t nbytes);
 169 void pstrcpy_targphys(const char *name,
 170                       hwaddr dest, int buf_size,
 171                       const char *source);
 172
 173 extern bool option_rom_has_mr;
 174 extern bool rom_file_has_mr;
 175
 176 int rom_add_file(const char *file, const char *fw_dir,
 177                  hwaddr addr, int32_t bootindex,
 178                  bool option_rom, MemoryRegion *mr, AddressSpace *as);
 179 MemoryRegion *rom_add_blob(const char *name, const void *blob, size_t len,
 180                            size_t max_len, hwaddr addr,
 181                            const char *fw_file_name,
 182                            FWCfgReadCallback fw_callback,
 183                            void *callback_opaque, AddressSpace *as,
 184                            bool read_only);
 185 int rom_add_elf_program(const char *name, void *data, size_t datasize,
 186                         size_t romsize, hwaddr addr, AddressSpace *as);
 187 int rom_check_and_register_reset(void);
 188 void rom_set_fw(FWCfgState *f);
 189 void rom_set_order_override(int order);
 190 void rom_reset_order_override(void);
 191 int rom_copy(uint8_t *dest, hwaddr addr, size_t size);
 192 void *rom_ptr(hwaddr addr);
 193 void hmp_info_roms(Monitor *mon, const QDict *qdict);
 194
 195 #define rom_add_file_fixed(_f, _a, _i)          \
 196     rom_add_file(_f, NULL, _a, _i, false, NULL, NULL)
 197 #define rom_add_blob_fixed(_f, _b, _l, _a)      \
 198     rom_add_blob(_f, _b, _l, _l, _a, NULL, NULL, NULL, NULL, true)
 199 #define rom_add_file_mr(_f, _mr, _i)            \
 200     rom_add_file(_f, NULL, 0, _i, false, _mr, NULL)
 201 #define rom_add_file_as(_f, _as, _i)            \
 202     rom_add_file(_f, NULL, 0, _i, false, NULL, _as)
 203 #define rom_add_file_fixed_as(_f, _a, _i, _as)          \
 204     rom_add_file(_f, NULL, _a, _i, false, NULL, _as)
 205 #define rom_add_blob_fixed_as(_f, _b, _l, _a, _as)      \
 206     rom_add_blob(_f, _b, _l, _l, _a, NULL, NULL, NULL, _as, true)
 207
 208 #define PC_ROM_MIN_VGA     0xc0000
 209 #define PC_ROM_MIN_OPTION  0xc8000
 210 #define PC_ROM_MAX         0xe0000
 211 #define PC_ROM_ALIGN       0x800
 212 #define PC_ROM_SIZE        (PC_ROM_MAX - PC_ROM_MIN_VGA)
 213
 214 int rom_add_vga(const char *file);
 215 int rom_add_option(const char *file, int32_t bootindex);
 216
 217 #endif