git.mutantstargoat.com Git - efitest2/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      EFI_RUNTIME_SERVICES *runtime_services;
  30 80      EFI_BOOT_SERVICES *boot_services;
  31         uint64_t num_of_table_entries;
  32         EFI_CONFIGURATION_TABLE *cfg_table;
  33
  34 EFI_BOOT_SERVICES signature: 0x56524553544f4f42
  35 0       EFI_TABLE_HEADER
  36 24      EFI_RAISE_TPL
  37 32      EFI_RESTORE_TPL
  38 40      EFI_ALLOCATE_PAGES
  39 48      EFI_FREE_PAGES
  40 56      EFI_GET_MEMORY_MAP
  41 64      EFI_ALLOCATE_POOL
  42 72      EFI_FREE_POOL
  43 80      EFI_CREATE_EVENT
  44 88      EFI_SET_TIMER
  45 96      EFI_WAIT_FOR_EVENT
  46 104     EFI_SIGNAL_EVENT
  47 112     EFI_CLOSE_EVENT
  48 120     EFI_CHECK_EVENT
  49 128     EFI_INSTALL_PROTOCOL_INTERFACE
  50 136     EFI_REINSTALL_PROTOCOL_INTERFACE
  51 144     EFI_UNINSTALL_PROTOCOL_INTERFACE
  52 152     EFI_HANDLE_PROTOCOL
  53 160     void *rsvd
  54 168     EFI_REGISTER_PROTOCOL_NOTIFY
  55 176     EFI_LOCATE_HANDLE
  56 184     EFI_LOCATE_DEVICE_PATH
  57 192     EFI_INSTALL_CONFIGURATION_TABLE
  58 200     EFI_IMAGE_LOAD
  59 208     EFI_IMAGE_START
  60 216     EFI_EXIT
  61 224     EFI_IMAGE_UNLOAD
  62 232     EFI_EXIT_BOOT_SERVICES
  63         ... more ...
  64
  65 EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL {
  66 0       EFI_TEXT_RESET
  67 8       EFI_TEXT_STRING
  68 16      EFI_TEXT_TEST_STRING
  69 24      EFI_TEXT_QUERY_MODE
  70 32      EFI_TEXT_SET_MODE
  71 40      EFI_TEXT_SET_ATTRIBUTE
  72 48      EFI_TEXT_CLEAR_SCREEN
  73 56      EFI_TEXT_SET_CURSOR_POSITION
  74 64      EFI_TEXT_ENABLE_CURSOR
  75 72      SIMPLE_TEXT_OUPUT_MODE *mode;
  76 };