/** @file\r
EFI Guid Partition Table Format Definition.\r
\r
- Copyright (c) 2006 - 2008, Intel Corporation\r
- All rights reserved. This program and the accompanying materials\r
- are licensed and made available under the terms and conditions of the BSD License\r
- which accompanies this distribution. 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 - 2011, 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
\r
**/\r
\r
///\r
#define PRIMARY_PART_HEADER_LBA 1\r
///\r
-/// EFI Partition Table Signature: "EFI PART"\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
#pragma pack(1)\r
\r
///\r
-/// GPT Partition Table Header\r
+/// GPT Partition Table Header.\r
///\r
typedef struct {\r
///\r
/// The table header for the GPT partition Table.\r
- /// This header contains EFI_PTAB_HEADER_ID\r
+ /// This header contains EFI_PTAB_HEADER_ID.\r
///\r
EFI_TABLE_HEADER Header;\r
///\r
} EFI_PARTITION_TABLE_HEADER;\r
\r
///\r
-/// GPT Partition Entry\r
+/// GPT Partition Entry.\r
///\r
typedef struct {\r
///\r
EFI_LBA EndingLBA;\r
///\r
/// Attribute bits, all bits reserved by UEFI\r
- /// Bit 0 Required for the platform to function.\r
- /// Bits 1-47 Undefined and must be zero.\r
- /// Bits 48-63 Reserved for GUID specific use.\r
+ /// Bit 0: If this bit is set, the partition is required for the platform to function. The owner/creator of the\r
+ /// partition indicates that deletion or modification of the contents can result in loss of platform\r
+ /// features or failure for the platform to boot or operate. The system cannot function normally if\r
+ /// this partition is removed, and it should be considered part of the hardware of the system.\r
+ /// Actions such as running diagnostics, system recovery, or even OS install or boot, could\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, 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
+ /// 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
+ /// to modify these bits. They must be preserved if Bits 0-47 are modified..\r
///\r
UINT64 Attributes;\r
///\r
- /// Unicode string.\r
+ /// Null-terminated name of the partition.\r
///\r
CHAR16 PartitionName[36];\r
} EFI_PARTITION_ENTRY;\r