ADD: Open version, with important changes kept out.

Signed-off-by: Amlal <amlal.elmahrouss@icloud.com>

1 files changed, 57 insertions, 0 deletions

diff --git a/dev/Kernel/FirmwareKit/GPT.h b/dev/Kernel/FirmwareKit/GPT.h
new file mode 100644
index 00000000..590b63ef
--- /dev/null
+++ b/dev/Kernel/FirmwareKit/GPT.h
@@ -0,0 +1,57 @@
+/* -------------------------------------------
+
+	Copyright (C) 2024, Amlal EL Mahrouss, all rights reserved.
+
+------------------------------------------- */
+
+#pragma once
+
+#include <NewKit/Defines.h>
+#include <FirmwareKit/EFI/EFI.h>
+
+#define kSectorSizeGPT 512
+
+namespace Kernel
+{
+	struct GPT_GUID;
+	struct GPT_PARTITION_TABLE;
+	struct GPT_PARTITION_ENTRY;
+
+	/// @brief GPT GUID structure.
+	typedef struct GPT_GUID
+	{
+		Kernel::UInt32 Data1;
+		Kernel::UInt16 Data2;
+		Kernel::UInt16 Data3;
+		Kernel::UInt8  Data4[8];
+	} GPT_GUID;
+
+	struct PACKED GPT_PARTITION_TABLE final
+	{
+		Char	 PartitionName[8];
+		UInt32	 Revision;
+		UInt32	 HeaderSize;
+		UInt32	 ChecksumCRC32;
+		UInt32	 Reserved1;
+		UInt64	 LBAHeader;
+		UInt64	 LBAAltHeader;
+		UInt64	 FirstGPTEntry;
+		UInt64	 LastGPTEntry;
+		GPT_GUID Guid;
+		UInt64	 StartingLBA;
+		UInt32	 NumPartitionEntries;
+		UInt32	 SizeOfEntries;
+		UInt32	 CRC32PartEntry;
+		UInt8	 Reserved2[kSectorSizeGPT];
+	};
+
+	struct PACKED GPT_PARTITION_ENTRY
+	{
+		GPT_GUID PartitionTypeGUID;
+		GPT_GUID UniquePartitionGUID;
+		UInt64	 StartLBA;
+		UInt64	 EndLBA;
+		UInt64	 Attributes;
+		UInt8	 Name[72];
+	};
+} // namespace Kernel