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 int load_image_targphys(const char *filename, hwaddr,
  18                         uint64_t max_sz);
  19 /**
  20  * load_image_mr: load an image into a memory region
  21  * @filename: Path to the image file
  22  * @mr: Memory Region to load into
  23  *
  24  * Load the specified file into the memory region.
  25  * The file loaded is registered as a ROM, so its contents will be
  26  * reinstated whenever the system is reset.
  27  * If the file is larger than the memory region's size the call will fail.
  28  * Returns -1 on failure, or the size of the file.
  29  */
  30 int load_image_mr(const char *filename, MemoryRegion *mr);
  31
  32 /* This is the limit on the maximum uncompressed image size that
  33  * load_image_gzipped_buffer() and load_image_gzipped() will read. It prevents
  34  * g_malloc() in those functions from allocating a huge amount of memory.
  35  */
  36 #define LOAD_IMAGE_MAX_GUNZIP_BYTES (256 << 20)
  37
  38 int load_image_gzipped_buffer(const char *filename, uint64_t max_sz,
  39                               uint8_t **buffer);
  40 int load_image_gzipped(const char *filename, hwaddr addr, uint64_t max_sz);
  41
  42 #define ELF_LOAD_FAILED       -1
  43 #define ELF_LOAD_NOT_ELF      -2
  44 #define ELF_LOAD_WRONG_ARCH   -3
  45 #define ELF_LOAD_WRONG_ENDIAN -4
  46 const char *load_elf_strerror(int error);
  47
  48 /** load_elf:
  49  * @filename: Path of ELF file
  50  * @translate_fn: optional function to translate load addresses
  51  * @translate_opaque: opaque data passed to @translate_fn
  52  * @pentry: Populated with program entry point. Ignored if NULL.
  53  * @lowaddr: Populated with lowest loaded address. Ignored if NULL.
  54  * @highaddr: Populated with highest loaded address. Ignored if NULL.
  55  * @bigendian: Expected ELF endianness. 0 for LE otherwise BE
  56  * @elf_machine: Expected ELF machine type
  57  * @clear_lsb: Set to mask off LSB of addresses (Some architectures use
  58  *             this for non-address data)
  59  * @data_swab: Set to order of byte swapping for data. 0 for no swap, 1
  60  *             for swapping bytes within halfwords, 2 for bytes within
  61  *             words and 3 for within doublewords.
  62  *
  63  * Load an ELF file's contents to the emulated system's address space.
  64  * Clients may optionally specify a callback to perform address
  65  * translations. @pentry, @lowaddr and @highaddr are optional pointers
  66  * which will be populated with various load information. @bigendian and
  67  * @elf_machine give the expected endianness and machine for the ELF the
  68  * load will fail if the target ELF does not match. Some architectures
  69  * have some architecture-specific behaviours that come into effect when
  70  * their particular values for @elf_machine are set.
  71  */
  72
  73 int load_elf(const char *filename, uint64_t (*translate_fn)(void *, uint64_t),
  74              void *translate_opaque, uint64_t *pentry, uint64_t *lowaddr,
  75              uint64_t *highaddr, int big_endian, int elf_machine,
  76              int clear_lsb, int data_swab);
  77
  78 /** load_elf_hdr:
  79  * @filename: Path of ELF file
  80  * @hdr: Buffer to populate with header data. Header data will not be
  81  * filled if set to NULL.
  82  * @is64: Set to true if the ELF is 64bit. Ignored if set to NULL
  83  * @errp: Populated with an error in failure cases
  84  *
  85  * Inspect an ELF file's header. Read its full header contents into a
  86  * buffer and/or determine if the ELF is 64bit.
  87  */
  88 void load_elf_hdr(const char *filename, void *hdr, bool *is64, Error **errp);
  89
  90 int load_aout(const char *filename, hwaddr addr, int max_sz,
  91               int bswap_needed, hwaddr target_page_size);
  92 int load_uimage(const char *filename, hwaddr *ep,
  93                 hwaddr *loadaddr, int *is_linux,
  94                 uint64_t (*translate_fn)(void *, uint64_t),
  95                 void *translate_opaque);
  96
  97 /**
  98  * load_ramdisk:
  99  * @filename: Path to the ramdisk image
 100  * @addr: Memory address to load the ramdisk to
 101  * @max_sz: Maximum allowed ramdisk size (for non-u-boot ramdisks)
 102  *
 103  * Load a ramdisk image with U-Boot header to the specified memory
 104  * address.
 105  *
 106  * Returns the size of the loaded image on success, -1 otherwise.
 107  */
 108 int load_ramdisk(const char *filename, hwaddr addr, uint64_t max_sz);
 109
 110 ssize_t read_targphys(const char *name,
 111                       int fd, hwaddr dst_addr, size_t nbytes);
 112 void pstrcpy_targphys(const char *name,
 113                       hwaddr dest, int buf_size,
 114                       const char *source);
 115
 116 extern bool option_rom_has_mr;
 117 extern bool rom_file_has_mr;
 118
 119 int rom_add_file(const char *file, const char *fw_dir,
 120                  hwaddr addr, int32_t bootindex,
 121                  bool option_rom, MemoryRegion *mr);
 122 MemoryRegion *rom_add_blob(const char *name, const void *blob, size_t len,
 123                            size_t max_len, hwaddr addr,
 124                            const char *fw_file_name,
 125                            FWCfgReadCallback fw_callback,
 126                            void *callback_opaque);
 127 int rom_add_elf_program(const char *name, void *data, size_t datasize,
 128                         size_t romsize, hwaddr addr);
 129 int rom_check_and_register_reset(void);
 130 void rom_set_fw(FWCfgState *f);
 131 int rom_copy(uint8_t *dest, hwaddr addr, size_t size);
 132 void *rom_ptr(hwaddr addr);
 133 void hmp_info_roms(Monitor *mon, const QDict *qdict);
 134
 135 #define rom_add_file_fixed(_f, _a, _i)          \
 136     rom_add_file(_f, NULL, _a, _i, false, NULL)
 137 #define rom_add_blob_fixed(_f, _b, _l, _a)      \
 138     rom_add_blob(_f, _b, _l, _l, _a, NULL, NULL, NULL)
 139 #define rom_add_file_mr(_f, _mr, _i)            \
 140     rom_add_file(_f, NULL, 0, _i, false, _mr)
 141
 142 #define PC_ROM_MIN_VGA     0xc0000
 143 #define PC_ROM_MIN_OPTION  0xc8000
 144 #define PC_ROM_MAX         0xe0000
 145 #define PC_ROM_ALIGN       0x800
 146 #define PC_ROM_SIZE        (PC_ROM_MAX - PC_ROM_MIN_VGA)
 147
 148 int rom_add_vga(const char *file);
 149 int rom_add_option(const char *file, int32_t bootindex);
 150
 151 #endif