/** @file\r
EFI Guid Partition Table Format Definition.\r
\r
-Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved<BR>\r
-This program and the accompanying materials are licensed and made available under \r
-the terms and conditions of the BSD License that accompanies this distribution. \r
-The full text of the license may be found at\r
-http://opensource.org/licenses/bsd-license.php. \r
- \r
-THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r
-WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
+Copyright (c) 2006 - 2019, Intel Corporation. All rights reserved.<BR>\r
+SPDX-License-Identifier: BSD-2-Clause-Patent\r
\r
**/\r
\r
/// The primary GUID Partition Table Header must be\r
/// located in LBA 1 (i.e., the second logical block).\r
///\r
-#define PRIMARY_PART_HEADER_LBA 1\r
+#define PRIMARY_PART_HEADER_LBA 1\r
///\r
/// EFI Partition Table Signature: "EFI PART".\r
-/// \r
-#define EFI_PTAB_HEADER_ID SIGNATURE_64 ('E','F','I',' ','P','A','R','T')\r
+///\r
+#define EFI_PTAB_HEADER_ID SIGNATURE_64 ('E','F','I',' ','P','A','R','T')\r
+///\r
+/// Minimum bytes reserve for EFI entry array buffer.\r
+///\r
+#define EFI_GPT_PART_ENTRY_MIN_SIZE 16384\r
\r
#pragma pack(1)\r
\r
/// The table header for the GPT partition Table.\r
/// This header contains EFI_PTAB_HEADER_ID.\r
///\r
- EFI_TABLE_HEADER Header;\r
+ EFI_TABLE_HEADER Header;\r
///\r
/// The LBA that contains this data structure.\r
///\r
- EFI_LBA MyLBA;\r
+ EFI_LBA MyLBA;\r
///\r
/// LBA address of the alternate GUID Partition Table Header.\r
///\r
- EFI_LBA AlternateLBA;\r
+ EFI_LBA AlternateLBA;\r
///\r
/// The first usable logical block that may be used\r
/// by a partition described by a GUID Partition Entry.\r
///\r
- EFI_LBA FirstUsableLBA;\r
+ EFI_LBA FirstUsableLBA;\r
///\r
/// The last usable logical block that may be used\r
/// by a partition described by a GUID Partition Entry.\r
///\r
- EFI_LBA LastUsableLBA;\r
+ EFI_LBA LastUsableLBA;\r
///\r
/// GUID that can be used to uniquely identify the disk.\r
///\r
- EFI_GUID DiskGUID;\r
+ EFI_GUID DiskGUID;\r
///\r
/// The starting LBA of the GUID Partition Entry array.\r
///\r
- EFI_LBA PartitionEntryLBA;\r
+ EFI_LBA PartitionEntryLBA;\r
///\r
/// The number of Partition Entries in the GUID Partition Entry array.\r
///\r
- UINT32 NumberOfPartitionEntries;\r
+ UINT32 NumberOfPartitionEntries;\r
///\r
/// The size, in bytes, of each the GUID Partition\r
/// Entry structures in the GUID Partition Entry\r
- /// array. Must be a multiple of 8.\r
+ /// array. This field shall be set to a value of 128 x 2^n where n is\r
+ /// an integer greater than or equal to zero (e.g., 128, 256, 512, etc.).\r
///\r
- UINT32 SizeOfPartitionEntry;\r
+ UINT32 SizeOfPartitionEntry;\r
///\r
/// The CRC32 of the GUID Partition Entry array.\r
/// Starts at PartitionEntryLBA and is\r
/// computed over a byte length of\r
/// NumberOfPartitionEntries * SizeOfPartitionEntry.\r
///\r
- UINT32 PartitionEntryArrayCRC32;\r
+ UINT32 PartitionEntryArrayCRC32;\r
} EFI_PARTITION_TABLE_HEADER;\r
\r
///\r
/// Unique ID that defines the purpose and type of this Partition. A value of\r
/// zero defines that this partition entry is not being used.\r
///\r
- EFI_GUID PartitionTypeGUID;\r
+ EFI_GUID PartitionTypeGUID;\r
///\r
/// GUID that is unique for every partition entry. Every partition ever\r
/// created will have a unique GUID.\r
/// This GUID must be assigned when the GUID Partition Entry is created.\r
///\r
- EFI_GUID UniquePartitionGUID;\r
+ EFI_GUID UniquePartitionGUID;\r
///\r
/// Starting LBA of the partition defined by this entry\r
///\r
- EFI_LBA StartingLBA;\r
+ EFI_LBA StartingLBA;\r
///\r
/// Ending LBA of the partition defined by this entry.\r
///\r
- EFI_LBA EndingLBA;\r
+ EFI_LBA EndingLBA;\r
///\r
/// Attribute bits, all bits reserved by UEFI\r
/// Bit 0: If this bit is set, the partition is required for the platform to function. The owner/creator of the\r
/// potentially stop working if this partition is removed. Unless OS software or firmware\r
/// recognizes this partition, it should never be removed or modified as the UEFI firmware or\r
/// platform hardware may become non-functional.\r
- /// Bit 1: If this bit is set firmware must not produce an EFI_BLOCK_IO_PROTOCOL device for\r
- /// this partition. By not producing EFI_BLOCK_IO_PROTOCOL partition, file system\r
+ /// Bit 1: If this bit is set, then firmware must not produce an EFI_BLOCK_IO_PROTOCOL device for\r
+ /// this partition. By not producing an EFI_BLOCK_IO_PROTOCOL partition, file system\r
/// mappings will not be created for this partition in UEFI.\r
- /// Bits 2-47: Undefined and must be zero. Reserved for expansion by future versions of the UEFI\r
+ /// Bit 2: This bit is set aside to let systems with traditional PC-AT BIOS firmware implementations\r
+ /// inform certain limited, special-purpose software running on these systems that a GPT\r
+ /// partition may be bootable. The UEFI boot manager must ignore this bit when selecting\r
+ /// a UEFI-compliant application, e.g., an OS loader.\r
+ /// Bits 3-47: Undefined and must be zero. Reserved for expansion by future versions of the UEFI\r
/// specification.\r
/// Bits 48-63: Reserved for GUID specific use. The use of these bits will vary depending on the\r
/// PartitionTypeGUID. Only the owner of the PartitionTypeGUID is allowed\r
\r
#pragma pack()\r
#endif\r
-\r
-\r
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