git.mutantstargoat.com Git - efitest3/blob - NOTES

   1 UEFI notes
   2 ==========
   3
   4 /efi/boot/bootx64.efi
   5
   6 rcx: efi handle
   7 rdx: efi system table pointer
   8 rsp: return address?
   9
  10 after loading call EFI_BOOT_SERVICES.ExitBootServices()
  11
  12 struct EFI_TABLE_HEADER {
  13         uint64_t signature;
  14         uint32_t revision;
  15         uint32_t header_size;
  16         uint32_t crc32;
  17         uint32_t rsvd;
  18 };
  19
  20 EFI_SYSTEM_TABLE signature: 0x5453595320494249
  21 0       EFI_TABLE_HEADER
  22 24      wchar_t *firmware_vendor
  23 32      uint32_t firmware_revision
  24 36      padding
  25 40      void *console_in_handle
  26 48      EFI_SIMPLE_TEXT_INPUT_PROTOCOL*
  27 56      void *console_out_handle
  28 64      EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL*
  29 72      void *stderr_handle
  30 80      EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL*
  31 88      EFI_RUNTIME_SERVICES *runtime_services;
  32 96      EFI_BOOT_SERVICES *boot_services;
  33         uint64_t num_of_table_entries;
  34         EFI_CONFIGURATION_TABLE *cfg_table;
  35
  36 EFI_BOOT_SERVICES signature: 0x56524553544f4f42
  37 0       EFI_TABLE_HEADER
  38 24      EFI_RAISE_TPL
  39 32      EFI_RESTORE_TPL
  40 40      EFI_ALLOCATE_PAGES
  41 48      EFI_FREE_PAGES
  42 56      EFI_GET_MEMORY_MAP
  43 64      EFI_ALLOCATE_POOL
  44 72      EFI_FREE_POOL
  45 80      EFI_CREATE_EVENT
  46 88      EFI_SET_TIMER
  47 96      EFI_WAIT_FOR_EVENT
  48 104     EFI_SIGNAL_EVENT
  49 112     EFI_CLOSE_EVENT
  50 120     EFI_CHECK_EVENT
  51 128     EFI_INSTALL_PROTOCOL_INTERFACE
  52 136     EFI_REINSTALL_PROTOCOL_INTERFACE
  53 144     EFI_UNINSTALL_PROTOCOL_INTERFACE
  54 152     EFI_HANDLE_PROTOCOL
  55 160     void *rsvd
  56 168     EFI_REGISTER_PROTOCOL_NOTIFY
  57 176     EFI_LOCATE_HANDLE
  58 184     EFI_LOCATE_DEVICE_PATH
  59 192     EFI_INSTALL_CONFIGURATION_TABLE
  60 200     EFI_IMAGE_LOAD
  61 208     EFI_IMAGE_START
  62 216     EFI_EXIT
  63 224     EFI_IMAGE_UNLOAD
  64 232     EFI_EXIT_BOOT_SERVICES
  65         ... more ...
  66
  67 EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL {
  68 0       EFI_TEXT_RESET
  69 8       EFI_TEXT_STRING
  70 16      EFI_TEXT_TEST_STRING
  71 24      EFI_TEXT_QUERY_MODE
  72 32      EFI_TEXT_SET_MODE
  73 40      EFI_TEXT_SET_ATTRIBUTE
  74 48      EFI_TEXT_CLEAR_SCREEN
  75 56      EFI_TEXT_SET_CURSOR_POSITION
  76 64      EFI_TEXT_ENABLE_CURSOR
  77 72      SIMPLE_TEXT_OUPUT_MODE *mode;
  78 };