1 files changed, 48 insertions, 0 deletions
diff --git a/src/kernel/FirmwareKit/GPT.h b/src/kernel/FirmwareKit/GPT.h
new file mode 100644
index 00000000..1772cc79
--- /dev/null
+++ b/src/kernel/FirmwareKit/GPT.h
@@ -0,0 +1,48 @@
+/* ========================================
+
+  Copyright (C) 2024-2025, Amlal El Mahrouss, licensed under the Apache 2.0 license.
+
+======================================== */
+
+#pragma once
+
+#include <FirmwareKit/EFI/EFI.h>
+#include <NeKit/Defines.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