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// SPDX-License-Identifier: Apache-2.0
// Copyright 2024-2026, Amlal El Mahrouss (amlal@nekernel.org)
// Licensed under the Apache License, Version 2.0 (see LICENSE file)
// Official repository: https://github.com/ne-foss-org/nekernel
#ifndef FIRMWAREKIT_GPT_H
#define FIRMWAREKIT_GPT_H
#include <FirmwareKit/EFI/EFI.h>
#include <NeKit/Config.h>
#define kSectorAlignGPT_PartTbl (420U)
#define kSectorAlignGPT_PartEntry (72U)
#define kMagicLenGPT (8U)
#define kMagicGPT ("EFI PART") // "EFI PART"
#define kGPTPartitionTableLBA (512U + sizeof(GPT_PARTITION_TABLE))
namespace Kernel {
struct GPT_PARTITION_TABLE;
struct GPT_PARTITION_ENTRY;
struct PACKED GPT_PARTITION_TABLE final {
Char Signature[kMagicLenGPT];
UInt32 Revision;
UInt32 HeaderSize;
UInt32 CRC32;
UInt32 Reserved1;
UInt64 LBAHeader;
UInt64 LBAAltHeader;
UInt64 FirstGPTEntry;
UInt64 LastGPTEntry;
EFI_GUID Guid;
UInt64 StartingLBA;
UInt32 NumPartitionEntries;
UInt32 SizeOfEntries;
UInt32 CRC32PartEntry;
UInt8 Reserved2[kSectorAlignGPT_PartTbl];
};
struct PACKED GPT_PARTITION_ENTRY {
EFI_GUID PartitionTypeGUID;
EFI_GUID UniquePartitionGUID;
UInt64 StartLBA;
UInt64 EndLBA;
UInt64 Attributes;
UInt8 Name[kSectorAlignGPT_PartEntry];
};
} // namespace Kernel
#endif
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