1 files changed, 124 insertions, 0 deletions
diff --git a/NewKernel/HALKit/AMD64/HalCoreMultiProcessingAMD64.cpp b/NewKernel/HALKit/AMD64/HalCoreMultiProcessingAMD64.cpp
new file mode 100644
index 00000000..13fcb03c
--- /dev/null
+++ b/NewKernel/HALKit/AMD64/HalCoreMultiProcessingAMD64.cpp
@@ -0,0 +1,124 @@
+/* -------------------------------------------
+
+    Copyright Mahrouss Logic
+
+------------------------------------------- */
+
+#include <Builtins/ACPI/ACPIFactoryInterface.hxx>
+#include <HALKit/AMD64/Processor.hpp>
+#include <NewKit/KernelCheck.hpp>
+
+///////////////////////////////////////////////////////////////////////////////////////
+
+//! NOTE: fGSI stands 'Field Global System Interrupt'
+
+///////////////////////////////////////////////////////////////////////////////////////
+
+namespace NewOS::HAL
+{
+	constexpr Int32 kThreadAPIC	  = 0;
+	constexpr Int32 kThreadLAPIC  = 1;
+	constexpr Int32 kThreadIOAPIC = 2;
+	constexpr Int32 kThreadAPIC64 = 3;
+	constexpr Int32 kThreadBoot	  = 4;
+
+	/*
+ *
+ * this is used to store info about the current running thread
+ * we use this struct to determine if we can use it, or mark it as used or on
+ * sleep.
+ *
+ */
+
+	struct ProcessorInfoAMD64 final
+	{
+		Int32	ThreadType;
+		UIntPtr JumpAddress;
+
+		struct
+		{
+			UInt32 Code;
+			UInt32 Data;
+			UInt32 BSS;
+		} Selector;
+	};
+
+	STATIC voidPtr	   kApicMadt	  = nullptr;
+	STATIC const char* kApicSignature = "APIC";
+
+	/// @brief Multiple APIC descriptor table.
+	struct MadtType final : public SDT
+	{
+		struct MadtAddress final
+		{
+			UInt32 fFlags; // 1 = Dual Legacy PICs installed
+			UInt32 fPhysicalAddress;
+
+			Char fType;
+			Char fRecLen; // record length
+		} Madt[];
+	};
+
+	struct MadtProcessorLocalApic final
+	{
+		Char   fProcessorId;
+		Char   fApicId;
+		UInt32 fFlags;
+	};
+
+	struct MadtIOApic final
+	{
+		Char   fApicId;
+		Char   fReserved;
+		UInt32 fAddress;
+		UInt32 fSystemInterruptBase;
+	};
+
+	struct MadtInterruptSource final
+	{
+		Char   fBusSource;
+		Char   fIrqSource;
+		UInt32 fGSI;
+		UInt16 fFlags;
+	};
+
+	struct MadtInterruptNmi final
+	{
+		Char   fNmiSource;
+		Char   fReserved;
+		UInt16 fFlags;
+		UInt32 fGSI;
+	};
+
+	struct MadtLocalApicAddressOverride final
+	{
+		UInt16	fResvered;
+		UIntPtr fAddress;
+	};
+
+	///////////////////////////////////////////////////////////////////////////////////////
+
+	STATIC MadtType* kApicInfoBlock = nullptr;
+
+	///////////////////////////////////////////////////////////////////////////////////////
+
+	void hal_system_get_cores(voidPtr rsdPtr)
+	{
+		kcout << "New OS: Constructing ACPIFactoryInterface...\r";
+
+		auto acpi = ACPIFactoryInterface(rsdPtr);
+		kApicMadt = acpi.Find(kApicSignature).Leak().Leak();
+
+		if (kApicMadt)
+		{
+			kcout << "New OS: Successfuly fetched the MADT!\r";
+			kApicInfoBlock = (MadtType*)kApicMadt;
+		}
+		else
+		{
+			MUST_PASS(false);
+		}
+	}
+} // namespace NewOS::HAL
+
+///////////////////////////////////////////////////////////////////////////////////////