rom/partition/partitiongpt.h

   1 #include <libraries/uuid.h>
   2
   3 /* Type ID for legacy MBR */
   4 #define MBRT_GPT 0xEE
   5
   6 /* GPT partition table header */
   7 struct GPTHeader
   8 {
   9     char   Signature[8];        /* ID signature                                           */
  10     ULONG  Revision;            /* Revision number                                        */
  11     ULONG  HeaderSize;          /* Size of this structure                                 */
  12     ULONG  HeaderCRC32;         /* CRC32 of the header                                    */
  13     ULONG  Reserved;
  14     UQUAD  CurrentBlock;        /* Number of block where this structure is placed         */
  15     UQUAD  BackupBlock;         /* Number of block where backup partition table is placed */
  16     UQUAD  DataStart;           /* Number of the first usable block for data              */
  17     UQUAD  DataEnd;             /* Number of the last usable block for data               */
  18     uuid_t DiskID;              /* Disk unique ID                                         */
  19     UQUAD  StartBlock;          /* Number if the first partition entry block              */
  20     ULONG  NumEntries;          /* Number of partitions in the table                      */
  21     ULONG  EntrySize;           /* Size of one entry                                      */
  22     ULONG  PartCRC32;           /* CRC32 of the partition entries array                   */
  23                                 /* The rest is reserved                                   */
  24 };
  25
  26 #define GPT_SIGNATURE      "EFI PART"
  27 #define GPT_MIN_HEADER_SIZE 92
  28 #define GPT_MAX_HEADER_SIZE 512
  29
  30 struct GPTPartition
  31 {
  32     uuid_t TypeID;      /* Partition type ID            */
  33     uuid_t PartitionID; /* Partition unique ID          */
  34     UQUAD  StartBlock;  /* Number of the first block    */
  35     UQUAD  EndBlock;    /* Number of the last block     */
  36     ULONG  Flags0;      /* Flags                        */
  37     ULONG  Flags1;
  38     UBYTE  Name[72];    /* Name in UTF16-LE encoding    */
  39 };
  40
  41 /* Flags0 and Flags1, according to Microsoft(R) */
  42 #define GPT_PF0_SYSTEM   (1 << 0)
  43 #define GPT_PF1_READONLY (1 << 29)
  44 #define GPT_PF1_HIDDEN   (1 << 30)
  45 #define GPT_PF1_NOMOUNT  (1 << 31)
  46
  47 /* AROS-specific flags */
  48 #define GPT_PF1_AROS_BOOTABLE (1 << 28)
  49 #define GPT_PF1_AROS_BOOTPRI  0x000000FF        /* Mask for boot priority */