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  1. #ifndef _EFI_GPT_H
  2. #define _EFI_GPT_H
  3. /*++
  4.  
  5. Copyright (c) 1998  Intel Corporation
  6.  
  7. Module Name:
  8.  
  9.     EfiGpt.h
  10.    
  11. Abstract:
  12.     Include file for EFI partitioning scheme
  13.  
  14.  
  15.  
  16. Revision History
  17.  
  18. --*/
  19.  
  20. #define PRIMARY_PART_HEADER_LBA         1
  21.  
  22. typedef struct {
  23.     EFI_TABLE_HEADER    Header;
  24.     EFI_LBA             MyLBA;
  25.     EFI_LBA             AlternateLBA;
  26.     EFI_LBA             FirstUsableLBA;
  27.     EFI_LBA             LastUsableLBA;
  28.     EFI_GUID            DiskGUID;
  29.     EFI_LBA             PartitionEntryLBA;
  30.     UINT32              NumberOfPartitionEntries;
  31.     UINT32              SizeOfPartitionEntry;
  32.     UINT32              PartitionEntryArrayCRC32;
  33. } EFI_PARTITION_TABLE_HEADER;
  34.  
  35. #define EFI_PTAB_HEADER_ID  "EFI PART"
  36.  
  37. typedef struct {
  38.     EFI_GUID    PartitionTypeGUID;
  39.     EFI_GUID    UniquePartitionGUID;
  40.     EFI_LBA     StartingLBA;
  41.     EFI_LBA     EndingLBA;
  42.     UINT64      Attributes;
  43.     CHAR16      PartitionName[36];
  44. } EFI_PARTITION_ENTRY;
  45.  
  46. //
  47. // EFI Partition Attributes
  48. //
  49. #define EFI_PART_USED_BY_EFI            0x0000000000000001
  50. #define EFI_PART_REQUIRED_TO_FUNCTION   0x0000000000000002
  51. #define EFI_PART_USED_BY_OS             0x0000000000000004
  52. #define EFI_PART_REQUIRED_BY_OS         0x0000000000000008
  53. #define EFI_PART_BACKUP_REQUIRED        0x0000000000000010
  54. #define EFI_PART_USER_DATA              0x0000000000000020
  55. #define EFI_PART_CRITICAL_USER_DATA     0x0000000000000040
  56. #define EFI_PART_REDUNDANT_PARTITION    0x0000000000000080
  57.  
  58. #define EFI_PART_TYPE_UNUSED_GUID   \
  59.     { 0x00000000, 0x0000, 0x0000, {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00} }
  60.    
  61. #define EFI_PART_TYPE_EFI_SYSTEM_PART_GUID  \
  62.     { 0xc12a7328, 0xf81f, 0x11d2, {0xba, 0x4b, 0x00, 0xa0, 0xc9, 0x3e, 0xc9, 0x3b} }
  63.  
  64. #define EFI_PART_TYPE_LEGACY_MBR_GUID   \
  65.     { 0x024dee41, 0x33e7, 0x11d3, {0x9d, 0x69, 0x00, 0x08, 0xc7, 0x81, 0xf3, 0x9f} }
  66.  
  67. #endif
  68.  
  69.