ADD: Open version, with important changes kept out.

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

86 files changed, 4990 insertions, 0 deletions

diff --git a/dev/Kernel/HALKit/.gitkeep b/dev/Kernel/HALKit/.gitkeep
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/dev/Kernel/HALKit/.gitkeep
diff --git a/dev/Kernel/HALKit/AMD64/CPUID.h b/dev/Kernel/HALKit/AMD64/CPUID.h
new file mode 100644
index 00000000..abe1cdc1
--- /dev/null
+++ b/dev/Kernel/HALKit/AMD64/CPUID.h
@@ -0,0 +1,86 @@
+/* -------------------------------------------
+
+	Copyright (C) 2024, Amlal EL Mahrouss, all rights reserved.
+
+	File: CPUID.h
+	Purpose: CPUID flags.
+
+	Revision History:
+
+	30/01/24: Added file (amlel)
+
+------------------------------------------- */
+
+#pragma once
+
+#include <NewKit/Defines.h>
+
+enum CPUFeatureEnum
+{
+	kCPUFeatureSSE3		  = 1 << 0,
+	kCPUFeaturePCLMUL	  = 1 << 1,
+	kCPUFeatureDTES64	  = 1 << 2,
+	kCPUFeatureMONITOR	  = 1 << 3,
+	kCPUFeatureDS_CPL	  = 1 << 4,
+	kCPUFeatureVMX		  = 1 << 5,
+	kCPUFeatureSMX		  = 1 << 6,
+	kCPUFeatureEST		  = 1 << 7,
+	kCPUFeatureTM2		  = 1 << 8,
+	kCPUFeatureSSSE3	  = 1 << 9,
+	kCPUFeatureCID		  = 1 << 10,
+	kCPUFeatureSDBG		  = 1 << 11,
+	kCPUFeatureFMA		  = 1 << 12,
+	kCPUFeatureCX16		  = 1 << 13,
+	kCPUFeatureXTPR		  = 1 << 14,
+	kCPUFeaturePDCM		  = 1 << 15,
+	kCPUFeaturePCID		  = 1 << 17,
+	kCPUFeatureDCA		  = 1 << 18,
+	kCPUFeatureSSE4_1	  = 1 << 19,
+	kCPUFeatureSSE4_2	  = 1 << 20,
+	kCPUFeatureX2APIC	  = 1 << 21,
+	kCPUFeatureMOVBE	  = 1 << 22,
+	kCPUFeaturePOP3C	  = 1 << 23,
+	kCPUFeatureECXTSC	  = 1 << 24,
+	kCPUFeatureAES		  = 1 << 25,
+	kCPUFeatureXSAVE	  = 1 << 26,
+	kCPUFeatureOSXSAVE	  = 1 << 27,
+	kCPUFeatureAVX		  = 1 << 28,
+	kCPUFeatureF16C		  = 1 << 29,
+	kCPUFeatureRDRAND	  = 1 << 30,
+	kCPUFeatureHYPERVISOR = 1 << 31,
+	kCPUFeatureFPU		  = 1 << 0,
+	kCPUFeatureVME		  = 1 << 1,
+	kCPUFeatureDE		  = 1 << 2,
+	kCPUFeaturePSE		  = 1 << 3,
+	kCPUFeatureEDXTSC	  = 1 << 4,
+	kCPUFeatureMSR		  = 1 << 5,
+	kCPUFeaturePAE		  = 1 << 6,
+	kCPUFeatureMCE		  = 1 << 7,
+	kCPUFeatureCX8		  = 1 << 8,
+	kCPUFeatureAPIC		  = 1 << 9,
+	kCPUFeatureSEP		  = 1 << 11,
+	kCPUFeatureMTRR		  = 1 << 12,
+	kCPUFeaturePGE		  = 1 << 13,
+	kCPUFeatureMCA		  = 1 << 14,
+	kCPUFeatureCMOV		  = 1 << 15,
+	kCPUFeaturePAT		  = 1 << 16,
+	kCPUFeaturePSE36	  = 1 << 17,
+	kCPUFeaturePSN		  = 1 << 18,
+	kCPUFeatureCLFLUSH	  = 1 << 19,
+	kCPUFeatureDS		  = 1 << 21,
+	kCPUFeatureACPI		  = 1 << 22,
+	kCPUFeatureMMX		  = 1 << 23,
+	kCPUFeatureFXSR		  = 1 << 24,
+	kCPUFeatureSSE		  = 1 << 25,
+	kCPUFeatureSSE2		  = 1 << 26,
+	kCPUFeatureSS		  = 1 << 27,
+	kCPUFeatureHTT		  = 1 << 28,
+	kCPUFeatureTM		  = 1 << 29,
+	kCPUFeatureIA64		  = 1 << 30,
+	kCPUFeaturePBE		  = 1 << 31
+};
+
+namespace Kernel
+{
+	typedef Int64 CPUID;
+} // namespace Kernel
diff --git a/dev/Kernel/HALKit/AMD64/HalACPIFactoryInterface.cc b/dev/Kernel/HALKit/AMD64/HalACPIFactoryInterface.cc
new file mode 100644
index 00000000..a1edf6f1
--- /dev/null
+++ b/dev/Kernel/HALKit/AMD64/HalACPIFactoryInterface.cc
@@ -0,0 +1,126 @@
+/* -------------------------------------------
+
+	Copyright (C) 2024, Amlal EL Mahrouss, all rights reserved.
+
+------------------------------------------- */
+
+#include <Mod/ACPI/ACPIFactoryInterface.h>
+#include <HALKit/AMD64/Processor.h>
+#include <NewKit/KString.h>
+#include <ArchKit/ArchKit.h>
+#include <KernelKit/Heap.h>
+
+namespace Kernel
+{
+	namespace Detail
+	{
+		struct FADT final : public SDT
+		{
+			UInt32 FirmwareCtrl;
+			UInt32 Dsdt;
+
+			// field used in ACPI 1.0; no longer in use, for compatibility only
+			UInt8 Reserved;
+
+			UInt8  PreferredPowerManagementProfile;
+			UInt16 SCI_Interrupt;
+			UInt32 SMI_CommandPort;
+			UInt8  AcpiEnable;
+			UInt8  AcpiDisable;
+			UInt8  S4BIOS_REQ;
+			UInt8  PSTATE_Control;
+			UInt32 PM1aEventBlock;
+			UInt32 PM1bEventBlock;
+			UInt32 PM1aControlBlock;
+			UInt32 PM1bControlBlock;
+			UInt32 PM2ControlBlock;
+			UInt32 PMTimerBlock;
+			UInt32 GPE0Block;
+			UInt32 GPE1Block;
+			UInt8  PM1EventLength;
+			UInt8  PM1ControlLength;
+			UInt8  PM2ControlLength;
+			UInt8  PMTimerLength;
+			UInt8  GPE0Length;
+			UInt8  GPE1Length;
+			UInt8  GPE1Base;
+			UInt8  CStateControl;
+			UInt16 WorstC2Latency;
+			UInt16 WorstC3Latency;
+			UInt16 FlushSize;
+			UInt16 FlushStride;
+			UInt8  DutyOffset;
+			UInt8  DutyWidth;
+			UInt8  DayAlarm;
+			UInt8  MonthAlarm;
+			UInt8  Century;
+
+			// reserved in ACPI 1.0; used since ACPI 2.0+
+			UInt16 BootArchitecturkMMFlags;
+
+			UInt8  Reserved2;
+			UInt32 Flags;
+
+			// 12 byte structure; see below for details
+			ACPI_ADDRESS ResetReg;
+
+			UInt8 ResetValue;
+			UInt8 Reserved3[3];
+
+			// 64bit pointers - Available on ACPI 2.0+
+			UInt64 X_FirmwareControl;
+			UInt64 X_Dsdt;
+
+			ACPI_ADDRESS X_PM1aEventBlock;
+			ACPI_ADDRESS X_PM1bEventBlock;
+			ACPI_ADDRESS X_PM1aControlBlock;
+			ACPI_ADDRESS X_PM1bControlBlock;
+			ACPI_ADDRESS X_PM2ControlBlock;
+			ACPI_ADDRESS X_PMTimerBlock;
+			ACPI_ADDRESS X_GPE0Block;
+			ACPI_ADDRESS X_GPE1Block;
+		};
+	} // namespace Detail
+
+	ACPIFactoryInterface::ACPIFactoryInterface(VoidPtr rsp_ptr)
+		: fRsdp(rsp_ptr), fEntries(0)
+	{
+	}
+
+	Void ACPIFactoryInterface::Shutdown()
+	{
+	failed_to_shutdown:
+		// in case no acpi mode, or it's not available.
+		while (Yes)
+		{
+			asm volatile("cli; hlt");
+		}
+	}
+
+	/// @brief Reboot machine in either ACPI or by triple faulting.
+	/// @return nothing it's a reboot.
+	Void ACPIFactoryInterface::Reboot()
+	{
+	failed_to_reboot:
+		asm volatile(".intel_syntax noprefix; "
+					 "rt_reset_hardware:; "
+					 "cli; "
+					 "wait_gate1: ; "
+					 "in al,0x64 ; "
+					 "and al,2 ; "
+					 "jnz wait_gate1 ; "
+					 "mov al,0x0D1 ; "
+					 "out 0x64,al ; "
+					 "wait_gate2: ; "
+					 "in al,0x64 ; "
+					 "and al,2 ; "
+					 "jnz wait_gate2 ; "
+					 "mov al,0x0FE ; "
+					 "out 0x60,al ; "
+					 "xor rax,rax ; "
+					 "lidt [rax] ; "
+					 "reset_wait: ; "
+					 "jmp reset_wait ; "
+					 ".att_syntax; ");
+	}
+} // namespace Kernel
diff --git a/dev/Kernel/HALKit/AMD64/HalAPICController.cc b/dev/Kernel/HALKit/AMD64/HalAPICController.cc
new file mode 100644
index 00000000..e4e35790
--- /dev/null
+++ b/dev/Kernel/HALKit/AMD64/HalAPICController.cc
@@ -0,0 +1,39 @@
+/* -------------------------------------------
+
+	Copyright (C) 2024, Amlal EL Mahrouss, all rights reserved.
+
+------------------------------------------- */
+
+#include <Mod/ACPI/ACPIFactoryInterface.h>
+#include <HALKit/AMD64/Processor.h>
+
+#define cIOAPICRegVal (4)
+#define cIOAPICRegReg (0)
+
+namespace Kernel::HAL
+{
+	/// @brief Read from APIC controller.
+	/// @param reg register.
+	UInt32 APICController::Read(UInt32 reg) noexcept
+	{
+		MUST_PASS(this->fApic);
+
+		UInt32 volatile* io_apic = (UInt32 volatile*)this->fApic;
+		io_apic[cIOAPICRegReg]	 = (reg & 0xFF);
+
+		return io_apic[cIOAPICRegVal];
+	}
+
+	/// @brief Write to APIC controller.
+	/// @param reg register.
+	/// @param value value.
+	Void APICController::Write(UInt32 reg, UInt32 value) noexcept
+	{
+		MUST_PASS(this->fApic);
+
+		UInt32 volatile* io_apic = (UInt32 volatile*)this->fApic;
+
+		io_apic[cIOAPICRegReg] = (reg & 0xFF);
+		io_apic[cIOAPICRegVal] = value;
+	}
+} // namespace Kernel::HAL
diff --git a/dev/Kernel/HALKit/AMD64/HalApplicationProcessor.cc b/dev/Kernel/HALKit/AMD64/HalApplicationProcessor.cc
new file mode 100644
index 00000000..4234f11e
--- /dev/null
+++ b/dev/Kernel/HALKit/AMD64/HalApplicationProcessor.cc
@@ -0,0 +1,279 @@
+/* -------------------------------------------
+
+	Copyright (C) 2024, Amlal EL Mahrouss, all rights reserved.
+
+------------------------------------------- */
+
+#include <Mod/ACPI/ACPIFactoryInterface.h>
+#include <KernelKit/UserProcessScheduler.h>
+#include <HALKit/AMD64/Processor.h>
+#include <ArchKit/ArchKit.h>
+#include <KernelKit/Semaphore.h>
+#include <KernelKit/UserProcessScheduler.h>
+#include <KernelKit/Timer.h>
+#include <Mod/CoreGfx/TextMgr.h>
+#include <NewKit/KernelPanic.h>
+#include <KernelKit/HardwareThreadScheduler.h>
+
+#define kApicSignature "APIC"
+
+#define kAPIC_ICR_Low	  0x300
+#define kAPIC_ICR_High	  0x310
+#define kAPIC_SIPI_Vector 0x00500
+#define kAPIC_EIPI_Vector 0x00400
+
+#define kAPIC_BASE_MSR		  0x1B
+#define kAPIC_BASE_MSR_BSP	  0x100
+#define kAPIC_BASE_MSR_ENABLE 0x800
+
+/// @note: _hal_switch_context is internal
+
+///////////////////////////////////////////////////////////////////////////////////////
+
+//! NOTE: fGSI stands 'Field Global System Interrupt'
+
+///////////////////////////////////////////////////////////////////////////////////////
+
+namespace Kernel::HAL
+{
+	struct PROCESS_APIC_MADT;
+	struct PROCESS_CONTROL_BLOCK;
+
+	struct PROCESS_CONTROL_BLOCK final
+	{
+		HAL::StackFramePtr mFrame;
+	};
+
+	EXTERN_C Void _hal_spin_core(Void);
+
+	STATIC struct PROCESS_APIC_MADT* kMADTBlock = nullptr;
+	STATIC Bool						 kSMPAware	= false;
+	STATIC Int64					 kSMPCount	= 0;
+
+	STATIC UIntPtr kApicBaseAddress = 0UL;
+
+	STATIC Int32   kSMPInterrupt						   = 0;
+	STATIC UInt64  kAPICLocales[kSchedProcessLimitPerTeam] = {0};
+	STATIC VoidPtr kRawMADT								   = nullptr;
+
+	/// @brief Multiple APIC Descriptor Table.
+	struct PROCESS_APIC_MADT final : public SDT
+	{
+		UInt32 Address; // Madt address
+		UInt8  Flags;	// Madt flags
+
+		struct
+		{
+			UInt8 Type;
+			UInt8 Len;
+
+			union {
+				struct
+				{
+					UInt8  IoID;
+					UInt8  Resv;
+					UInt32 IoAddress;
+					UInt32 GISBase;
+				} IOAPIC;
+
+				struct
+				{
+					UInt8  Source;
+					UInt8  IRQSource;
+					UInt32 GSI;
+					UInt16 Flags;
+				} IOAPIC_NMI;
+
+				struct
+				{
+					UInt8  ProcessorID;
+					UInt16 Flags;
+					UInt8  LINT;
+				} LAPIC;
+
+				struct
+				{
+					UInt16 Reserved;
+					UInt64 Address;
+				} LAPIC_ADDRESS_OVERRIDE;
+
+				struct
+				{
+					UInt16 Reserved;
+					UInt32 x2APICID;
+					UInt32 Flags;
+					UInt32 AcpiID;
+				} LAPIC_ADDRESS;
+			};
+		} List[]; // Records List
+	};
+
+	///////////////////////////////////////////////////////////////////////////////////////
+
+	/***********************************************************************************/
+	/// @brief Send IPI command to APIC.
+	/// @param apic_id programmable interrupt controller id.
+	/// @param vector vector interrupt.
+	/// @param target target APIC adress.
+	/// @return
+	/***********************************************************************************/
+
+	Void hal_send_start_ipi(UInt32 target, UInt32 apic_id)
+	{
+		Kernel::ke_dma_write<UInt32>(target, kAPIC_ICR_High, apic_id << 24);
+		Kernel::ke_dma_write<UInt32>(target, kAPIC_ICR_Low, 0x00000500 | 0x00004000 | 0x00000000);
+
+		while (Kernel::ke_dma_read<UInt32>(target, kAPIC_ICR_Low) & 0x1000)
+		{
+			;
+		}
+	}
+
+	/***********************************************************************************/
+	/// @brief Send end IPI for CPU.
+	/// @param apic_id
+	/// @param vector
+	/// @param target
+	/// @return
+	/***********************************************************************************/
+	Void hal_send_sipi(UInt32 target, UInt32 apic_id, UInt8 vector)
+	{
+		Kernel::ke_dma_write<UInt32>(target, kAPIC_ICR_High, apic_id << 24);
+		Kernel::ke_dma_write<UInt32>(target, kAPIC_ICR_Low, 0x00000600 | 0x00004000 | 0x00000000 | vector);
+
+		while (Kernel::ke_dma_read<UInt32>(target, kAPIC_ICR_Low) & 0x1000)
+		{
+			;
+		}
+	}
+
+	STATIC PROCESS_CONTROL_BLOCK kProcessBlocks[kSchedProcessLimitPerTeam] = {0};
+
+	EXTERN_C HAL::StackFramePtr mp_get_current_context(Int64 pid)
+	{
+		const auto process_index = pid % kSchedProcessLimitPerTeam;
+		return kProcessBlocks[process_index].mFrame;
+	}
+
+	EXTERN_C BOOL mp_register_process(HAL::StackFramePtr stack_frame, ProcessID pid)
+	{
+		MUST_PASS(stack_frame);
+
+		const auto process_index = pid % kSchedProcessLimitPerTeam;
+
+		kProcessBlocks[process_index].mFrame = stack_frame;
+
+		auto first_id = kAPICLocales[0];
+
+		hal_send_sipi(kApicBaseAddress, first_id, (UInt8)(((UIntPtr)stack_frame->BP) >> 12));
+
+		return YES;
+	}
+
+	/***********************************************************************************/
+	/// @brief Is the current config SMP aware?
+	/// @return True if YES, False if not.
+	/***********************************************************************************/
+	Bool mp_is_smp(Void) noexcept
+	{
+		return kSMPAware;
+	}
+
+	/***********************************************************************************/
+	/// @brief Assembly symbol to bootstrap AP.
+	/***********************************************************************************/
+	EXTERN_C Char* hal_ap_blob_start;
+
+	/***********************************************************************************/
+	/// @brief Assembly symbol to bootstrap AP.
+	/***********************************************************************************/
+	EXTERN_C Char* hal_ap_blob_end;
+
+	/***********************************************************************************/
+	/// @brief Fetch and enable SMP scheduler.
+	/// @param vendor_ptr SMP containing structure.
+	/***********************************************************************************/
+	Void mp_get_cores(VoidPtr vendor_ptr) noexcept
+	{
+		if (!vendor_ptr)
+			return;
+
+		if (!kHandoverHeader->f_HardwareTables.f_MultiProcessingEnabled)
+		{
+			kSMPAware = NO;
+			return;
+		}
+
+		auto hw_and_pow_int = PowerFactoryInterface(vendor_ptr);
+		kRawMADT			= hw_and_pow_int.Find(kApicSignature).Leak().Leak();
+
+		kMADTBlock = reinterpret_cast<PROCESS_APIC_MADT*>(kRawMADT);
+		kSMPAware  = NO;
+
+		if (kMADTBlock)
+		{
+			SizeT index = 0;
+
+			kSMPInterrupt = 0;
+			kSMPCount	  = 0;
+
+			kcout << "SMP: Starting APs...\r";
+
+			kApicBaseAddress = kMADTBlock->Address;
+
+			constexpr auto kMemoryAPStart = 0x7C000;
+			Char*		   ptr_ap_code	  = reinterpret_cast<Char*>(kMemoryAPStart);
+
+			SizeT hal_ap_blob_len = hal_ap_blob_end - hal_ap_blob_start;
+
+			rt_copy_memory((Char*)hal_ap_blob_start, ptr_ap_code, hal_ap_blob_len);
+
+			while (Yes)
+			{
+				if (kMADTBlock->List[index].Type > 9 ||
+					kSMPCount > kSchedProcessLimitPerTeam)
+					break;
+
+				switch (kMADTBlock->List[index].Type)
+				{
+				case 0x00: {
+					if (kMADTBlock->List[kSMPCount].LAPIC.ProcessorID < 1)
+						break;
+
+					kAPICLocales[kSMPCount] = kMADTBlock->List[kSMPCount].LAPIC.ProcessorID;
+					kcout << "SMP: APIC ID: " << number(kAPICLocales[kSMPCount]) << endl;
+
+					// I'll just make the AP start from scratch here.
+
+					hal_send_start_ipi(kApicBaseAddress, kAPICLocales[kSMPCount]);
+
+					HardwareTimer timer(Kernel::Milliseconds(10));
+					timer.Wait();
+
+					/// TODO: HAL helper to create an address.
+
+					hal_send_sipi(kApicBaseAddress, kAPICLocales[kSMPCount], (UInt8)(((UIntPtr)ptr_ap_code) >> 12));
+
+					++kSMPCount;
+					break;
+				}
+				default:
+					break;
+				}
+
+				++index;
+			}
+
+			kcout << "SMP: number of APs: " << number(kSMPCount) << endl;
+
+			// Kernel is now SMP aware.
+			// That means that the scheduler is now available (on MP Kernels)
+
+			kSMPAware = true;
+
+			/// TODO: Notify Boot AP that it must start.
+		}
+	}
+} // namespace Kernel::HAL
+
+///////////////////////////////////////////////////////////////////////////////////////
diff --git a/dev/Kernel/HALKit/AMD64/HalApplicationProcessorGNU.s b/dev/Kernel/HALKit/AMD64/HalApplicationProcessorGNU.s
new file mode 100644
index 00000000..a8ad3b76
--- /dev/null
+++ b/dev/Kernel/HALKit/AMD64/HalApplicationProcessorGNU.s
@@ -0,0 +1,8 @@
+.data
+
+.global hal_ap_blob_start         /* Export the start symbol */
+.global hal_ap_blob_end           /* Export the end symbol */
+
+hal_ap_blob_start:
+    .incbin "HALKit/AMD64/HalApplicationProcessorStartup.bin"
+hal_ap_blob_end:
diff --git a/dev/Kernel/HALKit/AMD64/HalApplicationProcessorStartup.asm b/dev/Kernel/HALKit/AMD64/HalApplicationProcessorStartup.asm
new file mode 100644
index 00000000..e0063965
--- /dev/null
+++ b/dev/Kernel/HALKit/AMD64/HalApplicationProcessorStartup.asm
@@ -0,0 +1,77 @@
+;; /*
+;; *	========================================================
+;; *
+;; *	ZKA
+;; * 	Copyright (C) 2024, Amlal EL Mahrouss, all rights reserved., all rights reserved.
+;; *
+;; * 	========================================================
+;; */
+
+[bits 16]
+[org 0x7c000]
+
+hal_ap_start:
+    mov ax, 0x0      
+    mov ss, ax
+    mov esp, 0x7000  
+
+    cli    
+    mov eax, cr0
+    or eax, 1        
+    mov cr0, eax
+    jmp .hal_ap_start_flush       
+.hal_ap_start_flush:
+    mov ax, 0x10     
+    mov ds, ax
+    mov es, ax
+    mov fs, ax
+    mov gs, ax
+    mov ss, ax
+
+    mov eax, cr4
+    or eax, 1 << 5   
+    mov cr4, eax
+
+    mov eax, cr3
+    mov cr3, eax     
+
+    mov ecx, 0xC0000080 
+    rdmsr
+    or eax, 1         
+    wrmsr
+
+    mov eax, cr0
+    or eax, (1 << 31)
+    mov cr0, eax
+
+    jmp 0x08:hal_ap_64bit_entry
+hal_ap_end:
+
+hal_ap_length:
+    dq hal_ap_end - hal_ap_start
+
+[bits 64]
+
+hal_ap_64bit_entry:
+    mov ax, 0x23     
+    mov ds, ax
+    mov es, ax
+    mov fs, ax
+    mov gs, ax
+    mov ss, ax
+    mov rsp, [hal_ap_64bit_entry_stack_end]
+
+    push 0x33                 
+    push qword [hal_ap_64bit_entry_loop]      
+    o64 pushf               
+    push rsp                  
+    push 0x33                 
+
+    o64 iret 
+
+hal_ap_64bit_entry_loop:
+    jmp $
+
+hal_ap_64bit_entry_stack:
+    resb 8196*2
+hal_ap_64bit_entry_stack_end:
\ No newline at end of file
diff --git a/dev/Kernel/HALKit/AMD64/HalBoot.asm b/dev/Kernel/HALKit/AMD64/HalBoot.asm
new file mode 100644
index 00000000..59d9658e
--- /dev/null
+++ b/dev/Kernel/HALKit/AMD64/HalBoot.asm
@@ -0,0 +1,28 @@
+;; /*
+;; *	========================================================
+;; *
+;; *	ZKA
+;; * 	Copyright (C) 2024, Amlal EL Mahrouss, all rights reserved., all rights reserved.
+;; *
+;; * 	========================================================
+;; */
+
+[bits 64]
+
+;; Global symbol of this unit
+[extern hal_init_platform]
+
+%define kTypeKernel 100
+%define kArchAmd64 122
+%define kHandoverMagic 0xBADCC
+
+section .ldr
+
+HandoverMagic:
+    dq kHandoverMagic
+HandoverType:
+    dw kTypeKernel
+HandoverPad:
+    dw 0
+HandoverArch:
+    dw kArchAmd64
diff --git a/dev/Kernel/HALKit/AMD64/HalCPUAMD64.cc b/dev/Kernel/HALKit/AMD64/HalCPUAMD64.cc
new file mode 100644
index 00000000..52ba46aa
--- /dev/null
+++ b/dev/Kernel/HALKit/AMD64/HalCPUAMD64.cc
@@ -0,0 +1,101 @@
+/* -------------------------------------------
+
+	Copyright (C) 2024, Amlal EL Mahrouss, all rights reserved.
+
+	File: HalCPU.cc
+	Purpose: Platform processor routines.
+
+------------------------------------------- */
+
+#include <HALKit/AMD64/Paging.h>
+#include <HALKit/AMD64/Processor.h>
+
+/**
+ * @file HalCPU.cc
+ * @brief Common CPU API.
+ */
+
+namespace Kernel::HAL
+{
+	Void lrt_out8(UInt16 port, UInt8 value)
+	{
+		asm volatile("outb %%al, %1"
+					 :
+					 : "a"(value), "Nd"(port)
+					 : "memory");
+	}
+
+	Void lrt_out16(UInt16 port, UInt16 value)
+	{
+		asm volatile("outw %%ax, %1"
+					 :
+					 : "a"(value), "Nd"(port)
+					 : "memory");
+	}
+
+	Void lrt_out32(UInt16 port, UInt32 value)
+	{
+		asm volatile("outl %%eax, %1"
+					 :
+					 : "a"(value), "Nd"(port)
+					 : "memory");
+	}
+
+	UInt8 lrt_in8(UInt16 port)
+	{
+		UInt8 value = 0UL;
+		asm volatile("inb %1, %%al"
+					 : "=a"(value)
+					 : "Nd"(port)
+					 : "memory");
+
+		return value;
+	}
+
+	UInt16 lrt_in16(UInt16 port)
+	{
+		UInt16 value = 0UL;
+		asm volatile("inw %1, %%ax"
+					 : "=a"(value)
+					 : "Nd"(port)
+					 : "memory");
+
+		return value;
+	}
+
+	UInt32 lrt_in32(UInt16 port)
+	{
+		UInt32 value = 0UL;
+		asm volatile("inl %1, %%eax"
+					 : "=a"(value)
+					 : "Nd"(port)
+					 : "memory");
+
+		return value;
+	}
+
+	Void rt_halt()
+	{
+		asm volatile("hlt");
+	}
+
+	Void rt_cli()
+	{
+		asm volatile("cli");
+	}
+
+	Void rt_sti()
+	{
+		asm volatile("sti");
+	}
+
+	Void rt_cld()
+	{
+		asm volatile("cld");
+	}
+
+	Void rt_std()
+	{
+		asm volatile("std");
+	}
+} // namespace Kernel::HAL
diff --git a/dev/Kernel/HALKit/AMD64/HalCommonAPI.asm b/dev/Kernel/HALKit/AMD64/HalCommonAPI.asm
new file mode 100644
index 00000000..8f6b242b
--- /dev/null
+++ b/dev/Kernel/HALKit/AMD64/HalCommonAPI.asm
@@ -0,0 +1,82 @@
+;; /*
+;; *	========================================================
+;; *
+;; *	ZKA
+;; * 	Copyright (C) 2024, Amlal EL Mahrouss, all rights reserved., all rights reserved.
+;; *
+;; * 	========================================================
+;; */
+
+section .text
+
+extern rt_wait_400ns
+
+global rt_out8
+global rt_out16
+global rt_out32
+
+global rt_in8
+global rt_in16
+global rt_in32
+
+rt_out8:
+    mov al, dl
+    mov dx, cx
+    out dx, al
+    ret
+
+rt_out16:
+    mov ax, dx
+    mov dx, cx
+    out dx, ax
+    ret
+
+rt_out32:
+    mov eax, edx
+    mov edx, ecx
+    out dx, eax
+    ret
+
+rt_in8:
+    mov dx, cx
+    in al, dx
+    ret
+
+rt_in16:
+    mov edx, ecx
+    in ax, dx
+    ret
+
+rt_in32:
+    mov rdx, rcx
+    in eax, dx
+    ret
+
+extern hal_system_call_enter
+global mp_system_call_handler
+
+mp_system_call_handler:
+
+    push r8
+    push r9
+    push r10
+    push r11
+    push r12
+    push r13
+    push r14
+    push r15
+
+    jmp hal_system_call_enter
+
+    pop r15
+    pop r14
+    pop r13
+    pop r12
+    pop r11
+    pop r10
+    pop r9
+    pop r8
+
+    o64 sysret
+
+[bits 16]
diff --git a/dev/Kernel/HALKit/AMD64/HalControlRegister.s b/dev/Kernel/HALKit/AMD64/HalControlRegister.s
new file mode 100644
index 00000000..2115d6d1
--- /dev/null
+++ b/dev/Kernel/HALKit/AMD64/HalControlRegister.s
@@ -0,0 +1,45 @@
+/* -------------------------------------------
+
+    Copyright (C) 2024, Amlal EL Mahrouss, all rights reserved.
+
+------------------------------------------- */
+
+.globl hal_write_cr3
+.globl hal_write_cr0
+.globl hal_read_cr2
+.globl hal_read_cr3
+.globl hal_read_cr0
+.globl hal_flush_tlb
+.globl hal_invl_tlb
+
+.text
+
+hal_invl_tlb:
+    invlpg (%rcx)
+    retq
+
+hal_flush_tlb:
+    call hal_read_cr3
+    mov %rax, %rcx
+    call hal_write_cr3
+    retq
+
+hal_read_cr3:
+    movq %cr3, %rax
+    retq
+
+hal_read_cr0:
+    movq %cr0, %rax
+    retq
+
+hal_read_cr2:
+    movq %cr2, %rax
+    retq
+
+hal_write_cr3:
+    movq %rcx, %cr3
+    retq
+
+hal_write_cr0:
+    movq %rcx, %cr0
+    retq
diff --git a/dev/Kernel/HALKit/AMD64/HalCoreInterruptHandlerAMD64.cc b/dev/Kernel/HALKit/AMD64/HalCoreInterruptHandlerAMD64.cc
new file mode 100644
index 00000000..a6c205f6
--- /dev/null
+++ b/dev/Kernel/HALKit/AMD64/HalCoreInterruptHandlerAMD64.cc
@@ -0,0 +1,235 @@
+/* -------------------------------------------
+
+	Copyright (C) 2024, Amlal EL Mahrouss, all rights reserved.
+
+------------------------------------------- */
+
+#include <ArchKit/ArchKit.h>
+#include <KernelKit/UserProcessScheduler.h>
+#include <NewKit/KString.h>
+#include <POSIXKit/signal.h>
+
+STATIC BOOL kIsScheduling = NO;
+
+/// @brief Handle GPF fault.
+/// @param rsp
+EXTERN_C void idt_handle_gpf(Kernel::UIntPtr rsp)
+{
+	auto process = Kernel::UserProcessScheduler::The().GetCurrentProcess();
+
+	if (process.Leak().Status != Kernel::ProcessStatusKind::kRunning)
+		return;
+
+	kIsScheduling = NO;
+
+	kcout << "Kernel: GPF.\r";
+
+	process.Leak().ProcessSignal.SignalIP		= 0UL;
+	process.Leak().ProcessSignal.SignalID		= SIGKILL;
+	process.Leak().ProcessSignal.PreviousStatus = process.Leak().Status;
+
+	kcout << "Kernel: PRCFROZE status set..\r";
+
+	process.Leak().Status = Kernel::ProcessStatusKind::kKilled;
+
+	process.Leak().Crash();
+}
+
+/// @brief Handle page fault.
+/// @param rsp
+EXTERN_C void idt_handle_pf(Kernel::UIntPtr rsp)
+{
+	auto process = Kernel::UserProcessScheduler::The().GetCurrentProcess();
+
+	if (process.Leak().Status != Kernel::ProcessStatusKind::kRunning)
+		return;
+
+	kIsScheduling = NO;
+
+	kcout << "Kernel: Page Fault.\r";
+	kcout << "Kernel: SIGKILL set.\r";
+
+	process.Leak().ProcessSignal.SignalIP		= 0UL;
+	process.Leak().ProcessSignal.SignalID		= SIGKILL;
+	process.Leak().ProcessSignal.PreviousStatus = process.Leak().Status;
+
+	kcout << "Kernel: PRCFROZE status set..\r";
+
+	process.Leak().Status = Kernel::ProcessStatusKind::kKilled;
+
+	process.Leak().Crash();
+}
+
+/// @brief Handle scheduler interrupt.
+EXTERN_C void idt_handle_scheduler(Kernel::UIntPtr rsp)
+{
+	static Kernel::Int64 try_count_before_brute = 100000UL;
+
+	while (kIsScheduling)
+	{
+		--try_count_before_brute;
+
+		if (try_count_before_brute < 1)
+			break;
+	}
+
+	try_count_before_brute = 100000UL;
+	kIsScheduling		   = YES;
+
+	kcout << "Kernel: Timer IRQ (Scheduler Notification).\r";
+	Kernel::UserProcessHelper::StartScheduling();
+
+	kIsScheduling = NO;
+}
+
+/// @brief Handle math fault.
+/// @param rsp
+EXTERN_C void idt_handle_math(Kernel::UIntPtr rsp)
+{
+	auto process = Kernel::UserProcessScheduler::The().GetCurrentProcess();
+
+	if (process.Leak().Status != Kernel::ProcessStatusKind::kRunning)
+		return;
+
+	kIsScheduling = NO;
+
+	kcout << "Kernel: Math error (division by zero?).\r";
+
+	process.Leak().ProcessSignal.SignalIP		= 0UL;
+	process.Leak().ProcessSignal.SignalID		= SIGKILL;
+	process.Leak().ProcessSignal.PreviousStatus = process.Leak().Status;
+
+	kcout << "Kernel: PRCFROZE status set..\r";
+
+	process.Leak().Status = Kernel::ProcessStatusKind::kKilled;
+
+	process.Leak().Crash();
+}
+
+/// @brief Handle any generic fault.
+/// @param rsp
+EXTERN_C void idt_handle_generic(Kernel::UIntPtr rsp)
+{
+	auto process = Kernel::UserProcessScheduler::The().GetCurrentProcess();
+
+	if (process.Leak().Status != Kernel::ProcessStatusKind::kRunning)
+		return;
+
+	kIsScheduling = NO;
+
+	kcout << "Kernel: Generic Process Fault.\r";
+
+	process.Leak().ProcessSignal.SignalIP		= 0UL;
+	process.Leak().ProcessSignal.SignalID		= SIGKILL;
+	process.Leak().ProcessSignal.PreviousStatus = process.Leak().Status;
+
+	kcout << "Kernel: PRCFROZE status set..\r";
+
+	process.Leak().Status = Kernel::ProcessStatusKind::kKilled;
+
+	process.Leak().Crash();
+}
+
+EXTERN_C Kernel::Void idt_handle_breakpoint(Kernel::UIntPtr rip)
+{
+	auto process = Kernel::UserProcessScheduler::The().GetCurrentProcess();
+
+	if (process.Leak().Status != Kernel::ProcessStatusKind::kRunning)
+		return;
+
+	kIsScheduling = NO;
+
+	kcout << "Kernel: Process RIP: " << Kernel::hex_number(rip) << endl;
+	kcout << "Kernel: SIGTRAP set.\r";
+
+	process.Leak().ProcessSignal.SignalIP = rip;
+	process.Leak().ProcessSignal.SignalID = SIGTRAP;
+
+	process.Leak().ProcessSignal.PreviousStatus = process.Leak().Status;
+
+	kcout << "Kernel: PRCFROZE status set..\r";
+
+	process.Leak().Status = Kernel::ProcessStatusKind::kFrozen;
+}
+
+/// @brief Handle #UD fault.
+/// @param rsp
+EXTERN_C void idt_handle_ud(Kernel::UIntPtr rsp)
+{
+	auto process = Kernel::UserProcessScheduler::The().GetCurrentProcess();
+
+	if (process.Leak().Status != Kernel::ProcessStatusKind::kRunning)
+		return;
+
+	kIsScheduling = NO;
+
+	kcout << "Kernel: Undefined Opcode.\r";
+
+	process.Leak().ProcessSignal.SignalIP		= 0UL;
+	process.Leak().ProcessSignal.SignalID		= SIGKILL;
+	process.Leak().ProcessSignal.PreviousStatus = process.Leak().Status;
+
+	kcout << "Kernel: PRCFROZE status set..\r";
+
+	process.Leak().Status = Kernel::ProcessStatusKind::kKilled;
+
+	process.Leak().Crash();
+}
+
+/// @brief Enter syscall from assembly.
+/// @param stack the stack pushed from assembly routine.
+/// @return nothing.
+EXTERN_C Kernel::Void hal_system_call_enter(Kernel::UIntPtr rcx_syscall_index, Kernel::UIntPtr rdx_syscall_struct)
+{
+	if (rcx_syscall_index < kSyscalls.Count())
+	{
+		kcout << "syscall: Enter Syscall.\r";
+
+		if (kSyscalls[rcx_syscall_index].fHooked)
+		{
+			if (kSyscalls[rcx_syscall_index].fProc)
+			{
+				(kSyscalls[rcx_syscall_index].fProc)((Kernel::VoidPtr)rdx_syscall_struct);
+			}
+			else
+			{
+				kcout << "syscall: syscall isn't valid at all! (is nullptr)\r";
+			}
+		}
+		else
+		{
+			kcout << "syscall: syscall isn't hooked at all! (is set to false)\r";
+		}
+
+		kcout << "syscall: Exit Syscall.\r";
+	}
+}
+
+/// @brief Enter Kernel call from assembly (DDK only).
+/// @param stack the stack pushed from assembly routine.
+/// @return nothing.
+EXTERN_C Kernel::Void hal_kernel_call_enter(Kernel::UIntPtr rcx_kerncall_index, Kernel::UIntPtr rdx_kerncall_struct)
+{
+	if (rcx_kerncall_index < kKerncalls.Count())
+	{
+		kcout << "kerncall: Enter Kernel Call List.\r";
+
+		if (kKerncalls[rcx_kerncall_index].fHooked)
+		{
+			if (kKerncalls[rcx_kerncall_index].fProc)
+			{
+				(kKerncalls[rcx_kerncall_index].fProc)((Kernel::VoidPtr)rdx_kerncall_struct);
+			}
+			else
+			{
+				kcout << "kerncall: Kernel call isn't valid at all! (is nullptr)\r";
+			}
+		}
+		else
+		{
+			kcout << "kerncall: Kernel call isn't hooked at all! (is set to false)\r";
+		}
+
+		kcout << "kerncall: Exit Kernel Call List.\r";
+	}
+}
diff --git a/dev/Kernel/HALKit/AMD64/HalDebugOutput.cc b/dev/Kernel/HALKit/AMD64/HalDebugOutput.cc
new file mode 100644
index 00000000..041af9ed
--- /dev/null
+++ b/dev/Kernel/HALKit/AMD64/HalDebugOutput.cc
@@ -0,0 +1,145 @@
+/* -------------------------------------------
+
+	Copyright (C) 2024, Amlal EL Mahrouss, all rights reserved.
+
+------------------------------------------- */
+
+#include <ArchKit/ArchKit.h>
+#include <KernelKit/DebugOutput.h>
+#include <NewKit/Utils.h>
+#include <NewKit/New.h>
+
+namespace Kernel
+{
+	enum CommStatus
+	{
+		kStateInvalid,
+		kStateReady	   = 0xCF,
+		kStateTransmit = 0xFC,
+		kStateCnt	   = 3
+	};
+
+	namespace Detail
+	{
+		constexpr Int16 kPort  = 0x3F8;
+		static Int32	kState = kStateInvalid;
+
+		/// @brief Init COM1.
+		/// @return
+		template <Int16 PORT>
+		bool hal_serial_init() noexcept
+		{
+			if (kState == kStateReady || kState == kStateTransmit)
+				return true;
+
+			HAL::rt_out8(PORT + 1, 0x00); // Disable all interrupts
+			HAL::rt_out8(PORT + 3, 0x80); // Enable DLAB (set baud rate divisor)
+			HAL::rt_out8(PORT + 0, 0x03); // Set divisor to 3 (lo byte) 38400 baud
+			HAL::rt_out8(PORT + 1, 0x00); //                  (hi byte)
+			HAL::rt_out8(PORT + 3, 0x03); // 8 bits, no parity, one stop bit
+			HAL::rt_out8(PORT + 2, 0xC7); // Enable FIFO, clear them, with 14-byte threshold
+			HAL::rt_out8(PORT + 4, 0x0B); // IRQs enabled, RTS/DSR set
+			HAL::rt_out8(PORT + 4, 0x1E); // Set in loopback mode, test the serial chip
+			HAL::rt_out8(PORT + 0, 0xAE); // Test serial chip (send byte 0xAE and check if
+										  // serial returns same byte)
+
+			// Check if serial is faulty (i.e: not same byte as sent)
+			if (HAL::rt_in8(PORT) != 0xAE)
+			{
+				ke_panic(RUNTIME_CHECK_HANDSHAKE);
+			}
+
+			kState = kStateReady;
+
+			// If serial is not faulty set it in normal operation mode
+			// (not-loopback with IRQs enabled and OUT#1 and OUT#2 bits enabled)
+			HAL::rt_out8(PORT + 4, 0x0F);
+
+			return true;
+		}
+	} // namespace Detail
+
+	TerminalDevice::~TerminalDevice() = default;
+
+	EXTERN_C void ke_io_write(const Char* bytes)
+	{
+#ifdef __DEBUG__
+		Detail::hal_serial_init<Detail::kPort>();
+
+		if (!bytes || Detail::kState != kStateReady)
+			return;
+
+		if (*bytes == 0)
+			return;
+
+		Detail::kState = kStateTransmit;
+
+		SizeT index = 0;
+		SizeT len	= 0;
+
+		index = 0;
+		len	  = rt_string_len(bytes, 255);
+
+		while (index < len)
+		{
+			if (bytes[index] == '\r')
+				HAL::rt_out8(Detail::kPort, '\r');
+
+			HAL::rt_out8(Detail::kPort, bytes[index] == '\r' ? '\n' : bytes[index]);
+			++index;
+		}
+
+		Detail::kState = kStateReady;
+#endif // __DEBUG__
+	}
+
+	EXTERN_C void ke_io_read(const Char* bytes)
+	{
+#ifdef __DEBUG__
+		Detail::hal_serial_init<Detail::kPort>();
+
+		if (!bytes || Detail::kState != kStateReady)
+			return;
+
+		Detail::kState = kStateTransmit;
+
+		SizeT index = 0;
+
+		///! TODO: Look on how to wait for the UART to complete.
+		while (true)
+		{
+			auto in = HAL::rt_in8(Detail::kPort);
+
+			///! If enter pressed then break.
+			if (in == 0xD)
+			{
+				break;
+			}
+
+			if (in < '0' || in < 'A' || in < 'a')
+			{
+				if (in != '@' || in != '!' || in != '?' || in != '.' || in != '/' ||
+					in != ':')
+				{
+					continue;
+				}
+			}
+
+			((char*)bytes)[index] = in;
+
+			++index;
+		}
+
+		((char*)bytes)[index] = 0;
+
+		Detail::kState = kStateReady;
+#endif // __DEBUG__
+	}
+
+	TerminalDevice TerminalDevice::The() noexcept
+	{
+		TerminalDevice out(Kernel::ke_io_write, Kernel::ke_io_read);
+		return out;
+	}
+
+} // namespace Kernel
diff --git a/dev/Kernel/HALKit/AMD64/HalDebugPort.cc b/dev/Kernel/HALKit/AMD64/HalDebugPort.cc
new file mode 100644
index 00000000..546239c2
--- /dev/null
+++ b/dev/Kernel/HALKit/AMD64/HalDebugPort.cc
@@ -0,0 +1,40 @@
+/* -------------------------------------------
+
+	Copyright (C) 2024, Amlal EL Mahrouss, all rights reserved.
+
+------------------------------------------- */
+
+//! @file DebuggerPort.cc
+//! @brief UART debug via packets.
+
+#include <ArchKit/ArchKit.h>
+#include <KernelKit/DebugOutput.h>
+
+// after that we have start of additional data.
+
+namespace Kernel
+{
+	void rt_debug_listen(DebuggerPortHeader* theHook) noexcept
+	{
+		if (theHook == nullptr)
+			return;
+
+		for (UInt32 i = 0U; i < kDebugMaxPorts; ++i)
+		{
+			HAL::rt_out16(theHook->fPort[i], kDebugMag0);
+			HAL::rt_wait_400ns();
+
+			HAL::rt_out16(theHook->fPort[i], kDebugMag1);
+			HAL::rt_wait_400ns();
+
+			HAL::rt_out16(theHook->fPort[i], kDebugMag2);
+			HAL::rt_wait_400ns();
+
+			HAL::rt_out16(theHook->fPort[i], kDebugMag3);
+			HAL::rt_wait_400ns();
+
+			if (HAL::rt_in16(theHook->fPort[i] != kDebugUnboundPort))
+				++theHook->fBoundCnt;
+		}
+	}
+} // namespace Kernel
diff --git a/dev/Kernel/HALKit/AMD64/HalDescriptorLoader.cc b/dev/Kernel/HALKit/AMD64/HalDescriptorLoader.cc
new file mode 100644
index 00000000..6e3ab7bb
--- /dev/null
+++ b/dev/Kernel/HALKit/AMD64/HalDescriptorLoader.cc
@@ -0,0 +1,126 @@
+/* -------------------------------------------
+
+	Copyright (C) 2024, Amlal EL Mahrouss, all rights reserved.
+
+------------------------------------------- */
+
+#include <ArchKit/ArchKit.h>
+#include <HALKit/AMD64/Processor.h>
+
+#define kPITDefaultTicks (1000U)
+
+namespace Kernel::HAL
+{
+	namespace Detail
+	{
+		STATIC ::Kernel::Detail::AMD64::InterruptDescriptorAMD64
+			kInterruptVectorTable[kKernelIdtSize] = {};
+
+		STATIC void hal_set_irq_mask(UInt8 irql);
+		STATIC void hal_clear_irq_mask(UInt8 irql);
+
+		STATIC Void hal_enable_pit(UInt16 ticks) noexcept
+		{
+			if (ticks == 0)
+				ticks = kPITDefaultTicks;
+
+			// Configure PIT to receieve scheduler interrupts.
+
+			UInt16 kPITCommDivisor = kPITFrequency / ticks; // 100 Hz.
+
+			HAL::rt_out8(kPITControlPort, 0x36);						   // Command to PIT
+			HAL::rt_out8(kPITChannel0Port, kPITCommDivisor & 0xFF);		   // Send low byte
+			HAL::rt_out8(kPITChannel0Port, (kPITCommDivisor >> 8) & 0xFF); // Send high byte
+
+			hal_clear_irq_mask(32);
+		}
+
+		STATIC void hal_set_irq_mask(UInt8 irql)
+		{
+			UInt16 port;
+			UInt8  value;
+
+			if (irql < 8)
+			{
+				port = kPICData;
+			}
+			else
+			{
+				port = kPIC2Data;
+				irql -= 8;
+			}
+
+			value = rt_in8(port) | (1 << irql);
+			rt_out8(port, value);
+		}
+
+		STATIC void hal_clear_irq_mask(UInt8 irql)
+		{
+			UInt16 port;
+			UInt8  value;
+
+			if (irql < 8)
+			{
+				port = kPICData;
+			}
+			else
+			{
+				port = kPIC2Data;
+				irql -= 8;
+			}
+
+			value = rt_in8(port) & ~(1 << irql);
+			rt_out8(port, value);
+		}
+	} // namespace Detail
+
+	/// @brief Loads the provided Global Descriptor Table.
+	/// @param gdt
+	/// @return
+	Void GDTLoader::Load(RegisterGDT& gdt)
+	{
+		hal_load_gdt(gdt);
+	}
+
+	Void IDTLoader::Load(Register64& idt)
+	{
+		rt_cli();
+
+		const Int16 kPITTickForScheduler = kPITDefaultTicks;
+
+		volatile ::Kernel::UIntPtr** ptr_ivt = (volatile ::Kernel::UIntPtr**)idt.Base;
+
+		for (SizeT idt_indx = 0; idt_indx < kKernelIdtSize; ++idt_indx)
+		{
+			Detail::kInterruptVectorTable[idt_indx].Selector	   = kIDTSelector;
+			Detail::kInterruptVectorTable[idt_indx].Ist			   = 0;
+			Detail::kInterruptVectorTable[idt_indx].TypeAttributes = kInterruptGate;
+			Detail::kInterruptVectorTable[idt_indx].OffsetLow	   = ((UIntPtr)ptr_ivt[idt_indx] & 0xFFFF);
+			Detail::kInterruptVectorTable[idt_indx].OffsetMid	   = (((UIntPtr)ptr_ivt[idt_indx] >> 16) & 0xFFFF);
+			Detail::kInterruptVectorTable[idt_indx].OffsetHigh =
+				(((UIntPtr)ptr_ivt[idt_indx] >> 32) & 0xFFFFFFFF);
+
+			Detail::kInterruptVectorTable[idt_indx].Zero = 0;
+		}
+
+		idt.Base  = (UIntPtr)&Detail::kInterruptVectorTable[0];
+		idt.Limit = sizeof(::Kernel::Detail::AMD64::InterruptDescriptorAMD64) *
+					(kKernelIdtSize);
+
+		hal_load_idt(idt);
+
+		Detail::hal_enable_pit(kPITTickForScheduler);
+
+		rt_sti();
+	}
+
+	void GDTLoader::Load(Ref<RegisterGDT>& gdt)
+	{
+		GDTLoader::Load(gdt.Leak());
+	}
+
+	void IDTLoader::Load(Ref<Register64>& idt)
+	{
+		IDTLoader::Load(idt.Leak());
+	}
+} // namespace Kernel::HAL
diff --git a/dev/Kernel/HALKit/AMD64/HalInterruptAPI.asm b/dev/Kernel/HALKit/AMD64/HalInterruptAPI.asm
new file mode 100644
index 00000000..b3d8d91f
--- /dev/null
+++ b/dev/Kernel/HALKit/AMD64/HalInterruptAPI.asm
@@ -0,0 +1,410 @@
+;; /*
+;; *    ---------------------------------------------------
+;; *
+;; * 	Copyright (C) 2024, Amlal EL Mahrouss, all rights reserved.
+;; *
+;; *    File: HalInterruptAPI.asm
+;; *    Purpose: Interrupt API, redirect raw interrupts into their handlers.
+;; *
+;; *    ---------------------------------------------------
+;; */
+
+[bits 64]
+
+%define kInterruptId 50
+
+%macro IntExp 1
+global __ZKA_INT_%1
+__ZKA_INT_%1:
+    cld
+
+    mov al, 0x20
+    out 0xA0, al
+    out 0x20, al
+
+    push rcx
+    call idt_handle_generic
+    pop rcx
+
+    std
+
+    o64 iret
+%endmacro
+
+%macro IntNormal 1
+global __ZKA_INT_%1
+__ZKA_INT_%1:
+    cld
+
+    mov al, 0x20
+    out 0xA0, al
+    out 0x20, al
+
+    std
+    
+    o64 iret
+%endmacro
+
+; This file handles the core interrupt table
+; Last edited 31/01/24
+
+global ke_handle_irq
+global kInterruptVectorTable
+
+extern idt_handle_gpf
+extern idt_handle_pf
+extern ke_io_write
+extern idt_handle_ud
+extern idt_handle_generic
+extern idt_handle_breakpoint
+
+section .text
+
+__ZKA_INT_0:
+    cld
+
+    mov al, 0x20
+    out 0x20, al
+
+    std
+
+    o64 iret
+
+__ZKA_INT_1:
+    cld
+
+    mov al, 0x20
+    out 0x20, al
+
+    push rcx
+    call idt_handle_generic
+    pop rcx
+
+    std
+
+    o64 iret
+
+__ZKA_INT_2:
+    cld
+
+    mov al, 0x20
+    out 0x20, al
+
+    push rcx
+    call idt_handle_generic
+    pop rcx
+
+    std
+
+    o64 iret
+
+;; @brief Triggers a breakpoint and freeze the process. RIP is also fetched.
+__ZKA_INT_3:
+    cld
+
+    mov al, 0x20
+    out 0x20, al
+
+    push rcx
+    call idt_handle_generic
+    pop rcx
+
+    std
+
+    o64 iret
+
+__ZKA_INT_4:
+    cld
+
+    mov al, 0x20
+    out 0x20, al
+
+
+    push rcx
+    call idt_handle_generic
+    pop rcx
+
+    std
+
+    o64 iret
+
+__ZKA_INT_5:
+    cld
+
+    mov al, 0x20
+    out 0x20, al
+
+    std
+
+    o64 iret
+
+;; Invalid opcode interrupt
+__ZKA_INT_6:
+    cld
+
+    mov al, 0x20
+    out 0x20, al
+
+    push rcx
+    call idt_handle_generic
+    pop rcx
+
+    std
+
+    o64 iret
+
+__ZKA_INT_7:
+    cld
+
+    mov al, 0x20
+    out 0x20, al
+
+    push rcx
+    call idt_handle_generic
+    pop rcx
+
+    std
+
+    o64 iret
+
+;; Invalid opcode interrupt
+__ZKA_INT_8:
+    cld
+
+    mov al, 0x20
+    out 0xA0, al
+    out 0x20, al
+
+    push rcx
+    call idt_handle_generic
+    pop rcx
+
+    std
+
+    o64 iret
+
+IntNormal 9
+IntExp   10
+IntExp   11
+
+IntExp 12
+
+__ZKA_INT_13:
+    cld
+
+    mov al, 0x20
+    out 0xA0, al
+    out 0x20, al
+
+    push rcx
+    call idt_handle_gpf
+    pop rcx
+
+    std
+    
+    o64 iret
+
+__ZKA_INT_14:
+    cld
+
+    mov al, 0x20
+    out 0xA0, al
+    out 0x20, al
+
+    push rcx
+    call idt_handle_pf
+    pop rcx
+
+    std
+
+    o64 iret
+
+IntNormal 15
+IntNormal 16
+IntExp 17
+IntNormal 18
+IntNormal 19
+IntNormal 20
+IntNormal 21
+
+IntNormal 22
+
+IntNormal 23
+IntNormal 24
+IntNormal 25
+IntNormal 26
+IntNormal 27
+IntNormal 28
+IntNormal 29
+IntExp    30
+IntNormal 31
+
+[extern idt_handle_scheduler]
+
+__ZKA_INT_32:
+    cld
+
+    mov al, 0x20
+    out 0xA0, al
+    out 0x20, al
+    
+    push rax
+    mov rcx, rsp
+    call idt_handle_scheduler
+    pop rax
+
+    std
+
+    o64 iret
+
+IntNormal 33
+
+IntNormal 34
+IntNormal 35
+IntNormal 36
+IntNormal 37
+IntNormal 38
+IntNormal 39
+IntNormal 40
+
+IntNormal 41
+
+IntNormal 42
+IntNormal 43
+IntNormal 44
+IntNormal 45
+IntNormal 46
+IntNormal 47
+IntNormal 48
+IntNormal 49
+
+[extern hal_system_call_enter]
+[extern hal_kernel_call_enter]
+
+__ZKA_INT_50:
+    cld
+
+    mov al, 0x20
+    out 0xA0, al
+    out 0x20, al
+
+    push rax
+    mov rax, hal_system_call_enter
+
+    mov rcx, r8
+    mov rdx, r9
+
+    call rax
+    pop rax
+
+    std
+
+    o64 iret
+
+__ZKA_INT_51:
+    cld
+
+    mov al, 0x20
+    out 0xA0, al
+    out 0x20, al
+
+    push rax
+    mov rax, hal_kernel_call_enter
+
+    mov rcx, r8
+    mov rdx, r9
+
+    call rax
+    pop rax
+
+    std
+
+    o64 iret
+
+IntNormal 52
+
+IntNormal 53
+IntNormal 54
+IntNormal 55
+IntNormal 56
+IntNormal 57
+IntNormal 58
+IntNormal 59
+IntNormal 60
+
+%assign i 61
+%rep 195
+    IntNormal i
+%assign i i+1
+%endrep
+
+section .text
+
+[global hal_load_gdt]
+
+hal_load_gdt:
+    cld
+
+    lgdt [rcx]
+
+    mov ax, 0x10
+    mov ds, ax
+    mov es, ax
+    mov fs, ax
+    mov gs, ax
+    mov ss, ax
+
+    mov rax, 0x08
+    push rax
+    push hal_reload_segments
+
+    o64 retf
+
+extern hal_real_init
+
+hal_reload_segments:
+    std
+
+    jmp hal_real_init
+    ret
+
+global hal_load_idt
+
+hal_load_idt:
+    lidt [rcx]
+
+    ; Master PIC initialization
+    mov al, 0x11          ; Start initialization in cascade mode
+    out 0x20, al          ; Send initialization command to Master PIC
+    out 0xA0, al          ; Send initialization command to Slave PIC
+
+    ; Remap the PIC to use vectors 32-39 for Master and 40-47 for Slave
+    mov al, 0x20          ; Set Master PIC offset to 32
+    out 0x21, al          ; Send offset to Master PIC
+
+    mov al, 0x28          ; Set Slave PIC offset to 40
+    out 0xA1, al          ; Send offset to Slave PIC
+
+    ; Configure Master PIC to inform Slave PIC at IRQ2
+    mov al, 0x04          ; Tell Master PIC there is a Slave PIC at IRQ2
+    out 0x21, al
+
+    ; Configure Slave PIC identity
+    mov al, 0x02          ; Tell Slave PIC its cascade identity
+    out 0xA1, al
+
+    ; Set both PICs to 8086 mode
+    mov al, 0x01          ; 8086 mode
+    out 0x21, al
+    out 0xA1, al
+
+    ret
+
+section .data
+
+kInterruptVectorTable:
+    %assign i 0
+    %rep 256
+        dq __ZKA_INT_%+i
+    %assign i i+1
+    %endrep
diff --git a/dev/Kernel/HALKit/AMD64/HalKernelMain.cc b/dev/Kernel/HALKit/AMD64/HalKernelMain.cc
new file mode 100644
index 00000000..e982714d
--- /dev/null
+++ b/dev/Kernel/HALKit/AMD64/HalKernelMain.cc
@@ -0,0 +1,110 @@
+/* -------------------------------------------
+
+	Copyright (C) 2024, Amlal EL Mahrouss, all rights reserved.
+
+------------------------------------------- */
+
+#include <ArchKit/ArchKit.h>
+#include <KernelKit/UserProcessScheduler.h>
+#include <KernelKit/HardwareThreadScheduler.h>
+#include <KernelKit/CodeMgr.h>
+#include <Mod/ACPI/ACPIFactoryInterface.h>
+#include <NetworkKit/IPC.h>
+#include <CFKit/Property.h>
+#include <Mod/CoreGfx/TextMgr.h>
+
+EXTERN_C Kernel::VoidPtr kInterruptVectorTable[];
+EXTERN_C Kernel::VoidPtr mp_user_switch_proc;
+EXTERN_C Kernel::Char mp_user_switch_proc_stack_begin[];
+
+EXTERN_C Kernel::rtl_ctor_kind __CTOR_LIST__[];
+EXTERN_C Kernel::VoidPtr __DTOR_LIST__;
+
+EXTERN_C Kernel::Void rtl_kernel_main(Kernel::SizeT argc, char** argv, char** envp, Kernel::SizeT envp_len);
+
+STATIC Kernel::Void hal_init_cxx_ctors()
+{
+	for (Kernel::SizeT i = 0U; i < Kernel::UserProcessScheduler::The().CurrentTeam().AsArray().Count(); ++i)
+	{
+		Kernel::UserProcessScheduler::The().CurrentTeam().AsArray()[i]		  = Kernel::UserProcess();
+		Kernel::UserProcessScheduler::The().CurrentTeam().AsArray()[i].Status = Kernel::ProcessStatusKind::kKilled;
+	}
+
+	Kernel::UserProcessScheduler::The().CurrentTeam().mProcessCount = 0UL;
+
+	for (Kernel::SizeT index = 0UL; __CTOR_LIST__[index] != __DTOR_LIST__; ++index)
+	{
+		Kernel::rtl_ctor_kind constructor_cxx = (Kernel::rtl_ctor_kind)__CTOR_LIST__[index];
+		constructor_cxx();
+	}
+}
+
+/// @brief Kernel init procedure.
+EXTERN_C void hal_init_platform(
+	Kernel::HEL::BootInfoHeader* handover_hdr)
+{
+	kHandoverHeader = handover_hdr;
+
+	if (kHandoverHeader->f_Magic != kHandoverMagic &&
+		kHandoverHeader->f_Version != kHandoverVersion)
+	{
+		return;
+	}
+
+	hal_init_cxx_ctors();
+
+	/************************************** */
+	/*     INITIALIZE BIT MAP.              */
+	/************************************** */
+
+	kKernelBitMpSize  = kHandoverHeader->f_BitMapSize;
+	kKernelBitMpStart = reinterpret_cast<Kernel::VoidPtr>(
+		reinterpret_cast<Kernel::UIntPtr>(kHandoverHeader->f_BitMapStart));
+
+	/************************************** */
+	/*     INITIALIZE GDT AND SEGMENTS. */
+	/************************************** */
+
+	STATIC CONST auto kGDTEntriesCount = 6;
+
+	/* GDT, mostly descriptors for user and kernel segments. */
+	STATIC Kernel::HAL::Detail::ZKA_GDT_ENTRY ALIGN(0x08) kGDTArray[kGDTEntriesCount] = {
+		{.fLimitLow = 0, .fBaseLow = 0, .fBaseMid = 0, .fAccessByte = 0x00, .fFlags = 0x00, .fBaseHigh = 0},   // Null entry
+		{.fLimitLow = 0x0, .fBaseLow = 0, .fBaseMid = 0, .fAccessByte = 0x9A, .fFlags = 0xAF, .fBaseHigh = 0}, // Kernel code
+		{.fLimitLow = 0x0, .fBaseLow = 0, .fBaseMid = 0, .fAccessByte = 0x92, .fFlags = 0xCF, .fBaseHigh = 0}, // Kernel data
+		{.fLimitLow = 0x0, .fBaseLow = 0, .fBaseMid = 0, .fAccessByte = 0xFA, .fFlags = 0xAF, .fBaseHigh = 0}, // User code
+		{.fLimitLow = 0x0, .fBaseLow = 0, .fBaseMid = 0, .fAccessByte = 0xF2, .fFlags = 0xCF, .fBaseHigh = 0}, // User data
+	};
+
+	// Load memory descriptors.
+	Kernel::HAL::RegisterGDT gdt_reg;
+
+	gdt_reg.Base  = reinterpret_cast<Kernel::UIntPtr>(kGDTArray);
+	gdt_reg.Limit = (sizeof(Kernel::HAL::Detail::ZKA_GDT_ENTRY) * kGDTEntriesCount) - 1;
+
+	//! GDT will load hal_read_init after it successfully loads the segments.
+	Kernel::HAL::GDTLoader gdt_loader;
+	gdt_loader.Load(gdt_reg);
+
+	Kernel::ke_panic(RUNTIME_CHECK_BOOTSTRAP);
+}
+
+EXTERN_C Kernel::Void hal_real_init(Kernel::Void) noexcept
+{
+	rtl_kernel_main(0, nullptr, nullptr, 0);
+
+	Kernel::HAL::mp_get_cores(kHandoverHeader->f_HardwareTables.f_VendorPtr);
+
+	Kernel::HAL::Register64 idt_reg;
+
+	idt_reg.Base = (Kernel::UIntPtr)kInterruptVectorTable;
+
+	Kernel::HAL::IDTLoader idt_loader;
+
+	idt_loader.Load(idt_reg);
+
+	while (YES)
+	{
+		continue;
+	}
+}
diff --git a/dev/Kernel/HALKit/AMD64/HalKernelPanic.cc b/dev/Kernel/HALKit/AMD64/HalKernelPanic.cc
new file mode 100644
index 00000000..594b475f
--- /dev/null
+++ b/dev/Kernel/HALKit/AMD64/HalKernelPanic.cc
@@ -0,0 +1,90 @@
+/* -------------------------------------------
+
+	Copyright (C) 2024, Amlal EL Mahrouss, all rights reserved.
+
+------------------------------------------- */
+
+#include <NewKit/KernelPanic.h>
+#include <ArchKit/ArchKit.h>
+#include <KernelKit/Timer.h>
+#include <KernelKit/DebugOutput.h>
+#include <NewKit/KString.h>
+#include <FirmwareKit/Handover.h>
+#include <KernelKit/FileMgr.h>
+#include <Mod/CoreGfx/FBMgr.h>
+#include <Mod/CoreGfx/TextMgr.h>
+#include <NewKit/Utils.h>
+
+/* Each error code is attributed with an ID, which will prompt a string onto the
+ * screen. Wait for debugger... */
+
+namespace Kernel
+{
+	/// @brief Dumping factory class.
+	class RecoveryFactory final
+	{
+	public:
+		STATIC Void Recover() noexcept;
+	};
+
+	/***********************************************************************************/
+	/// @brief Stops execution of the kernel.
+	/// @param id kernel stop ID.
+	/***********************************************************************************/
+	Void ke_panic(const Kernel::Int32& id, const Char* message)
+	{
+		fb_init();
+
+		auto panic_text = RGB(0xff, 0xff, 0xff);
+
+		auto y = 10;
+		auto x = 10;
+
+		Char* message_apicid = new Char[128];
+		rt_set_memory(message_apicid, 0, 128);
+
+		rt_copy_memory((VoidPtr) "panic id: ", message_apicid, rt_string_len("panic id: "));
+		rt_to_string(message_apicid + rt_string_len("panic id: "), (UIntPtr)id, 10);
+
+		fb_render_string(message_apicid, y, x, panic_text);
+
+		y += 10;
+
+		fb_render_string((message ? message : "message: panic raised, going nowhere after this!"), y, x, panic_text);
+
+		y += 10;
+
+		Char* message_cr2 = new Char[128];
+		rt_set_memory(message_cr2, 0, 128);
+
+		rt_copy_memory((VoidPtr) "cr2: ", message_cr2, rt_string_len("cr2: "));
+		rt_to_string(message_cr2 + rt_string_len("cr2: "), (UIntPtr)hal_read_cr2(), 10);
+
+		fb_render_string(message_cr2, y, x, panic_text);
+
+		y += 10;
+
+		fb_clear();
+
+		RecoveryFactory::Recover();
+	}
+
+	Void RecoveryFactory::Recover() noexcept
+	{
+		while (YES)
+		{
+			HAL::rt_halt();
+		}
+	}
+
+	void ke_runtime_check(bool expr, const Char* file, const Char* line)
+	{
+		if (!expr)
+		{
+			kcout << "FAILED: FILE: " << file << endl;
+			kcout << "FAILED: LINE: " << line << endl;
+
+			ke_panic(RUNTIME_CHECK_FAILED, file); // Runtime Check failed
+		}
+	}
+} // namespace Kernel
diff --git a/dev/Kernel/HALKit/AMD64/HalPagingMgrAMD64.cc b/dev/Kernel/HALKit/AMD64/HalPagingMgrAMD64.cc
new file mode 100644
index 00000000..97bf07f8
--- /dev/null
+++ b/dev/Kernel/HALKit/AMD64/HalPagingMgrAMD64.cc
@@ -0,0 +1,168 @@
+/* -------------------------------------------
+
+	Copyright (C) 2024, Amlal EL Mahrouss, all rights reserved.
+
+	File: HalPagingMgr.cc
+	Purpose: Platform Paging Manager..
+
+------------------------------------------- */
+
+#include <HALKit/AMD64/Paging.h>
+#include <HALKit/AMD64/Processor.h>
+
+namespace Kernel::HAL
+{
+	typedef UInt32 PageTableIndex;
+
+	/***********************************************************************************/
+	/// \brief Page store type.
+	/***********************************************************************************/
+	struct ZKA_PAGE_STORE final
+	{
+		struct
+		{
+			PDE*	fPde{nullptr};
+			PTE*	fPte{nullptr};
+			VoidPtr fVAddr{nullptr};
+		} fInternalStore;
+
+		Bool fStoreOp{No}; // Store operation is in progress.
+
+		bool IsValidPage(PTE* pte)
+		{
+			return pte && pte->Present;
+		}
+
+		bool IsWRPage(PTE* pte)
+		{
+			return pte && pte->Wr;
+		}
+
+		bool IsUserPage(PTE* pte)
+		{
+			return pte && pte->User;
+		}
+
+		static ZKA_PAGE_STORE& The()
+		{
+			static ZKA_PAGE_STORE the;
+			return the;
+		}
+	};
+
+	/***********************************************************************************/
+	/// \brief Retrieve the page status of a PTE.
+	/// \param pte Page Table Entry pointer.
+	/***********************************************************************************/
+	STATIC Void mmi_page_status(PTE* pte)
+	{
+		kcout << (pte->Present ? "Present" : "Not Present") << endl;
+		kcout << (pte->Wr ? "W/R" : "Not W/R") << endl;
+		kcout << (pte->ExecDisable ? "NX" : "Not NX") << endl;
+		kcout << (pte->User ? "User" : "Not User") << endl;
+	}
+
+	STATIC Int32 mmi_map_page_table_entry(VoidPtr virtual_address, UInt32 flags, ZKA_PTE* pt_entry, ZKA_PDE* pd_entry);
+
+	/***********************************************************************************/
+	/// @brief Maps or allocates a page from virtual_address.
+	/// @param virtual_address a valid virtual address.
+	/// @param phys_addr point to physical address.
+	/// @param flags the flags to put on the page.
+	/// @return Status code of page manipulation process.
+	/***********************************************************************************/
+	EXTERN_C Int32 mm_map_page(VoidPtr virtual_address, UInt32 flags)
+	{
+		if (!virtual_address ||
+			!flags)
+			return 0;
+
+		// Constants for table index bits
+		const UInt64 cPmlIndexMask = 0x1FFULL; // Mask for PML4, PDPT, PD, PT index (9 bits)
+		const UInt64 cPtIndexMask  = 0xFFFULL; // Mask for page table index (12 bits)
+
+		UInt64 cr3 = (UInt64)hal_read_cr3();
+
+		ZKA_PAGE_STORE& page_store = ZKA_PAGE_STORE::The();
+
+		// Extract the indices from the virtual address
+		UInt64 pml4_index = ((UIntPtr)virtual_address >> 39) & cPmlIndexMask;
+		UInt64 pdpt_index = ((UIntPtr)virtual_address >> 30) & cPmlIndexMask;
+		UInt64 pd_index	  = ((UIntPtr)virtual_address >> 21) & cPmlIndexMask;
+		UInt64 pt_index	  = ((UIntPtr)virtual_address >> 12) & cPmlIndexMask;
+
+		page_store.fStoreOp = Yes;
+
+		if (page_store.fInternalStore.fVAddr == virtual_address)
+		{
+			page_store.fStoreOp = No;
+			return mmi_map_page_table_entry(page_store.fInternalStore.fVAddr, flags, page_store.fInternalStore.fPte, page_store.fInternalStore.fPde);
+		}
+
+		const auto cPmlEntrySize = 8;
+
+		// Read the PML4 entry from memory
+		UInt64 pml4_base  = cr3 & ~cPtIndexMask;					  // CR3 points to the PML4 table base, mask off lower bits
+		UInt64 pml4_entry = (pml4_base + pml4_index * cPmlEntrySize); // Each entry is 8 bytes
+
+		// Read the PDPT entry
+		UInt64 pdpt_base  = pml4_entry & ~cPtIndexMask; // Get the PDPT base physical address
+		UInt64 pdpt_entry = (pdpt_base + pdpt_index * cPmlEntrySize);
+
+		// Read the PD entry
+		UInt64 pd_base	= pdpt_entry & ~cPtIndexMask; // Get the Page Directory base physical address
+		UInt64 pd_entry = (pd_base + pd_index * cPmlEntrySize);
+
+		// Read the PT entry
+		UInt64 pt_base	= pd_entry & ~cPtIndexMask; // Get the Page Table base physical address
+		UInt64 pt_entry = (pt_base + pt_index * cPmlEntrySize);
+
+		// Lastly, grab the pte entry.
+		ZKA_PDE* pde_struct = reinterpret_cast<ZKA_PDE*>(pt_base);
+
+		return mmi_map_page_table_entry(virtual_address, flags, pde_struct->fEntries[pt_entry], pde_struct);
+	}
+
+	/***********************************************************************************/
+	/// @brief Maps flags for a specific pte.
+	/// @internal Internal function.
+	/***********************************************************************************/
+	STATIC Int32 mmi_map_page_table_entry(VoidPtr virtual_address, UInt32 flags, ZKA_PTE* pt_entry, ZKA_PDE* pd_entry)
+	{
+		if (!pt_entry)
+			return 1;
+
+		pt_entry->Present = true;
+
+		if (flags & kMMFlagsWr)
+			pt_entry->Wr = true;
+		else if (flags & ~kMMFlagsWr)
+			pt_entry->Wr = false;
+
+		if (flags & kMMFlagsNX)
+			pt_entry->ExecDisable = true;
+		else if (flags & ~kMMFlagsNX)
+			pt_entry->ExecDisable = false;
+
+		if (flags & kMMFlagsUser)
+			pt_entry->User = true;
+		else if (flags & ~kMMFlagsUser)
+			pt_entry->User = false;
+
+		hal_invl_tlb(reinterpret_cast<VoidPtr>(pt_entry));
+
+		mmi_page_status(pt_entry);
+
+		ZKA_PAGE_STORE& page_store = ZKA_PAGE_STORE::The();
+
+		// Update Internal store.
+
+		page_store.fInternalStore.fPde	 = pd_entry;
+		page_store.fInternalStore.fPte	 = pt_entry;
+		page_store.fInternalStore.fVAddr = virtual_address;
+
+		page_store.fStoreOp = No;
+
+		return 0;
+	}
+} // namespace Kernel::HAL
diff --git a/dev/Kernel/HALKit/AMD64/HalRoutineWait.s b/dev/Kernel/HALKit/AMD64/HalRoutineWait.s
new file mode 100644
index 00000000..89051ba4
--- /dev/null
+++ b/dev/Kernel/HALKit/AMD64/HalRoutineWait.s
@@ -0,0 +1,11 @@
+.globl rt_wait_400ns
+
+.section .text
+rt_wait_400ns:
+    jmp .loop
+    pause
+    .loop:
+        jmp .loop2
+        pause
+    .loop2:
+        ret
diff --git a/dev/Kernel/HALKit/AMD64/HalSchedulerCorePrimitivesAMD64.cc b/dev/Kernel/HALKit/AMD64/HalSchedulerCorePrimitivesAMD64.cc
new file mode 100644
index 00000000..b6ea7ca3
--- /dev/null
+++ b/dev/Kernel/HALKit/AMD64/HalSchedulerCorePrimitivesAMD64.cc
@@ -0,0 +1,52 @@
+/* -------------------------------------------
+
+	Copyright (C) 2024, Amlal EL Mahrouss, all rights reserved.
+
+------------------------------------------- */
+
+#include <HALKit/AMD64/Processor.h>
+#include <KernelKit/UserProcessScheduler.h>
+
+namespace Kernel
+{
+	/***********************************************************************************/
+	/// @brief Unimplemented function (crashes by default)
+	/// @param
+	/***********************************************************************************/
+
+	EXTERN_C Void __zka_pure_call(UserProcess* process)
+	{
+		if (process)
+			process->Crash();
+	}
+
+	/***********************************************************************************/
+	/// @brief Validate user stack.
+	/// @param stack_ptr the frame pointer.
+	/***********************************************************************************/
+
+	EXTERN_C Bool hal_check_stack(HAL::StackFramePtr stack_ptr)
+	{
+		if (!stack_ptr)
+			return No;
+
+		return stack_ptr->SP != 0 && stack_ptr->BP != 0;
+	}
+
+	/// @brief Wakes up thread.
+	/// Wakes up thread from the hang state.
+	Void mp_wakeup_thread(HAL::StackFrame* stack)
+	{
+		Kernel::UserProcessHelper::StartScheduling();
+	}
+
+	/// @brief makes the thread sleep on a loop.
+	/// hooks and hangs thread to prevent code from executing.
+	Void mp_hang_thread(HAL::StackFrame* stack)
+	{
+		while (Yes)
+		{
+			/* Nothing to do, code is spinning */
+		}
+	}
+} // namespace Kernel
diff --git a/dev/Kernel/HALKit/AMD64/HalTimerAMD64.cc b/dev/Kernel/HALKit/AMD64/HalTimerAMD64.cc
new file mode 100644
index 00000000..bedbb237
--- /dev/null
+++ b/dev/Kernel/HALKit/AMD64/HalTimerAMD64.cc
@@ -0,0 +1,86 @@
+/* -------------------------------------------

+

+	Copyright (C) 2024, Amlal EL Mahrouss, all rights reserved.

+

+	File: HalTimer.cc

+	Purpose: HAL timer

+

+	Revision History:

+

+	07/07/24: Added file (amlel)

+

+------------------------------------------- */

+

+#include <Mod/ACPI/ACPIFactoryInterface.h>

+#include <ArchKit/ArchKit.h>

+#include <KernelKit/Timer.h>

+

+// timer slot 0

+

+#define cHPETCounterRegValue   (0x00)

+#define cHPETConfigRegValue	   (0x20)

+#define cHPETCompRegValue	   (0x24)

+#define cHPETInterruptRegValue (0x2C)

+

+///! BUGS: 0

+///! @file HalTimer.cc

+///! @brief Hardware Timer (HPET)

+

+namespace Kernel::Detail

+{

+	struct HPET_BLOCK : public Kernel::SDT

+	{

+		Kernel::UInt8  hardware_rev_id;

+		Kernel::UInt8  comparator_count : 5;

+		Kernel::UInt8  counter_size : 1;

+		Kernel::UInt8  reserved : 1;

+		Kernel::UInt8  legacy_replacement : 1;

+		Kernel::UInt16 pci_vendor_id;

+		ACPI_ADDRESS   address;

+		Kernel::UInt8  hpet_number;

+		Kernel::UInt16 minimum_tick;

+		Kernel::UInt8  page_protection;

+	} PACKED;

+} // namespace Kernel::Detail

+

+using namespace Kernel;

+

+HardwareTimer::HardwareTimer(Int64 ms)

+	: fWaitFor(ms)

+{

+	auto power = PowerFactoryInterface(kHandoverHeader->f_HardwareTables.f_VendorPtr);

+

+	auto hpet = (Detail::HPET_BLOCK*)power.Find("HPET").Leak().Leak();

+	MUST_PASS(hpet);

+

+	fDigitalTimer = (IntPtr*)hpet->address.Address;

+}

+

+HardwareTimer::~HardwareTimer()

+{

+	fDigitalTimer = nullptr;

+	fWaitFor	  = 0;

+}

+

+BOOL HardwareTimer::Wait() noexcept

+{

+	if (fWaitFor < 1)

+		return NO;

+

+	// if not enabled yet.

+	if (!(*(fDigitalTimer + cHPETConfigRegValue) & (1 << 0)))

+	{

+		*(fDigitalTimer + cHPETConfigRegValue) |= (1 << 0); // enable it

+		*(fDigitalTimer + cHPETConfigRegValue) |= (1 << 3); // one shot conf

+	}

+

+	UInt64 ticks = fWaitFor / ((*(fDigitalTimer) >> 32) & __UINT32_MAX__);

+	UInt64 prev	 = *(fDigitalTimer + cHPETCounterRegValue);

+

+	prev += ticks;

+

+	while (*(fDigitalTimer + cHPETCounterRegValue) < (ticks))

+		;

+

+	return YES;

+}

diff --git a/dev/Kernel/HALKit/AMD64/HalUtils.asm b/dev/Kernel/HALKit/AMD64/HalUtils.asm
new file mode 100644
index 00000000..d3918190
--- /dev/null
+++ b/dev/Kernel/HALKit/AMD64/HalUtils.asm
@@ -0,0 +1,26 @@
+;; /*
+;; *	========================================================
+;; *
+;; *	ZKA
+;; * 	Copyright (C) 2024, Amlal EL Mahrouss, all rights reserved., all rights reserved.
+;; *
+;; * 	========================================================
+;; */
+
+[bits 64]
+
+[global rt_install_tib]
+
+section .text
+
+;; changed: rs, fs
+;; expected: rcx, rdx
+
+rt_install_tib:
+	mov rcx, gs ;; TIB -> Thread Information Block
+	mov rdx, fs ;; PIB -> Process Information Block
+	ret
+
+;; //////////////////////////////////////////////////// ;;
+
+[extern kApicMadtAddressesCount]
diff --git a/dev/Kernel/HALKit/AMD64/Hypervisor.h b/dev/Kernel/HALKit/AMD64/Hypervisor.h
new file mode 100644
index 00000000..8f4a89d9
--- /dev/null
+++ b/dev/Kernel/HALKit/AMD64/Hypervisor.h
@@ -0,0 +1,25 @@
+/* -------------------------------------------
+
+	Copyright (C) 2024, Amlal EL Mahrouss, all rights reserved.
+
+------------------------------------------- */
+
+#pragma once
+
+#include <NewKit/Defines.h>
+
+namespace Kernel
+{
+	MAKE_STRING_ENUM(HYPERVISOR)
+	ENUM_STRING(Qemu, "TCGTCGTCGTCG");
+	ENUM_STRING(KVM, " KVMKVMKVM  ");
+	ENUM_STRING(VMWare, "VMwareVMware");
+	ENUM_STRING(VirtualBox, "VBoxVBoxVBox");
+	ENUM_STRING(Xen, "XenVMMXenVMM");
+	ENUM_STRING(Microsoft, "Microsoft Hv");
+	ENUM_STRING(Parallels, " prl hyperv ");
+	ENUM_STRING(ParallelsAlt, " lrpepyh vr ");
+	ENUM_STRING(Bhyve, "bhyve bhyve ");
+	ENUM_STRING(Qnx, " QNXQVMBSQG ");
+	END_STRING_ENUM()
+} // namespace Kernel
diff --git a/dev/Kernel/HALKit/AMD64/MBCI/HalMBCI.cc b/dev/Kernel/HALKit/AMD64/MBCI/HalMBCI.cc
new file mode 100644
index 00000000..3a268f8c
--- /dev/null
+++ b/dev/Kernel/HALKit/AMD64/MBCI/HalMBCI.cc
@@ -0,0 +1,7 @@
+/* -------------------------------------------
+
+	Copyright (C) 2024, Amlal EL Mahrouss, all rights reserved.
+
+------------------------------------------- */
+
+#include <Mod/MBCI/MBCI.h>
diff --git a/dev/Kernel/HALKit/AMD64/PCI/DMA.cc b/dev/Kernel/HALKit/AMD64/PCI/DMA.cc
new file mode 100644
index 00000000..43b9bbdf
--- /dev/null
+++ b/dev/Kernel/HALKit/AMD64/PCI/DMA.cc
@@ -0,0 +1,82 @@
+/* -------------------------------------------
+
+	Copyright (C) 2024, Amlal EL Mahrouss, all rights reserved.
+
+------------------------------------------- */
+
+#include <KernelKit/PCI/DMA.h>
+
+namespace Kernel
+{
+	DMAWrapper::operator bool()
+	{
+		return fAddress;
+	}
+
+	bool DMAWrapper::operator!()
+	{
+		return !fAddress;
+	}
+
+	Boolean DMAWrapper::Check(UIntPtr offset) const
+	{
+		if (!fAddress)
+			return false;
+		if (offset == 0)
+			return true;
+
+		kcout << "[DMAWrapper::IsIn] Checking offset..\n";
+		return reinterpret_cast<UIntPtr>(fAddress) >= offset;
+	}
+
+	bool DMAWrapper::Write(const UIntPtr& bit, const UIntPtr& offset)
+	{
+		if (!fAddress)
+			return false;
+
+		kcout << "[DMAWrapper::Write] Writing at address..\n";
+
+		auto addr =
+			(volatile UIntPtr*)(reinterpret_cast<UIntPtr>(fAddress) + offset);
+		*addr = bit;
+
+		return true;
+	}
+
+	UIntPtr DMAWrapper::Read(const UIntPtr& offset)
+	{
+		kcout << "[DMAWrapper::Read] checking fAddress..\n";
+		if (!fAddress)
+			return 0;
+
+		kcout << "[DMAWrapper::Read] Reading fAddress..\n";
+		return *(volatile UIntPtr*)(reinterpret_cast<UIntPtr>(fAddress) + offset);
+		;
+	}
+
+	UIntPtr DMAWrapper::operator[](const UIntPtr& offset)
+	{
+		return this->Read(offset);
+	}
+
+	OwnPtr<IOBuf<Char*>> DMAFactory::Construct(OwnPtr<DMAWrapper>& dma)
+	{
+		if (!dma)
+			return {};
+
+		OwnPtr<IOBuf<Char*>> dmaOwnPtr =
+			make_ptr<IOBuf<Char*>, char*>(reinterpret_cast<char*>(dma->fAddress));
+
+		if (!dmaOwnPtr)
+			return {};
+
+		kcout << "Returning the new OwnPtr<IOBuf<Char*>>!\r";
+		return dmaOwnPtr;
+	}
+
+	DMAWrapper& DMAWrapper::operator=(voidPtr Ptr)
+	{
+		fAddress = Ptr;
+		return *this;
+	}
+} // namespace Kernel
diff --git a/dev/Kernel/HALKit/AMD64/PCI/Database.cc b/dev/Kernel/HALKit/AMD64/PCI/Database.cc
new file mode 100644
index 00000000..2db1c111
--- /dev/null
+++ b/dev/Kernel/HALKit/AMD64/PCI/Database.cc
@@ -0,0 +1,11 @@
+/* -------------------------------------------
+
+	Copyright (C) 2024, Amlal EL Mahrouss, all rights reserved.
+
+------------------------------------------- */
+
+#include <KernelKit/PCI/Database.h>
+
+namespace Kernel
+{
+}
diff --git a/dev/Kernel/HALKit/AMD64/PCI/Device.cc b/dev/Kernel/HALKit/AMD64/PCI/Device.cc
new file mode 100644
index 00000000..7b0f64b3
--- /dev/null
+++ b/dev/Kernel/HALKit/AMD64/PCI/Device.cc
@@ -0,0 +1,139 @@
+/* -------------------------------------------
+
+	Copyright (C) 2024, Amlal EL Mahrouss, all rights reserved.
+
+------------------------------------------- */
+
+#include <ArchKit/ArchKit.h>
+#include <KernelKit/PCI/Device.h>
+
+Kernel::UInt ZKA_PCIReadRaw(Kernel::UInt bar, Kernel::UShort bus, Kernel::UShort dev, Kernel::UShort fun)
+{
+	Kernel::UInt target = 0x80000000 | ((Kernel::UInt)bus << 16) |
+						  ((Kernel::UInt)dev << 11) | ((Kernel::UInt)fun << 8) |
+						  (bar & 0xFC);
+
+	Kernel::HAL::rt_out32((Kernel::UShort)Kernel::PCI::PciConfigKind::ConfigAddress,
+						  target);
+
+	return Kernel::HAL::rt_in32((Kernel::UShort)Kernel::PCI::PciConfigKind::ConfigData);
+}
+
+void ZKA_PCISetCfgTarget(Kernel::UInt bar, Kernel::UShort bus, Kernel::UShort dev, Kernel::UShort fun)
+{
+	Kernel::UInt target = 0x80000000 | ((Kernel::UInt)bus << 16) |
+						  ((Kernel::UInt)dev << 11) | ((Kernel::UInt)fun << 8) |
+						  (bar & ~3);
+
+	Kernel::HAL::rt_out32((Kernel::UShort)Kernel::PCI::PciConfigKind::ConfigAddress,
+						  target);
+}
+
+#define PCI_BAR_IO		 0x01
+#define PCI_BAR_LOWMEM	 0x02
+#define PCI_BAR_64		 0x04
+#define PCI_BAR_PREFETCH 0x08
+
+namespace Kernel::PCI
+{
+	Device::Device(UShort bus, UShort device, UShort func, UInt32 bar)
+		: fBus(bus), fDevice(device), fFunction(func), fBar(bar)
+	{
+	}
+
+	Device::~Device() = default;
+
+	UInt Device::Read(UInt bar, Size sz)
+	{
+		ZKA_PCISetCfgTarget(bar, fBus, fDevice, fFunction);
+
+		if (sz == 4)
+			return HAL::rt_in32((UShort)PciConfigKind::ConfigData + (bar & 3));
+		if (sz == 2)
+			return HAL::rt_in16((UShort)PciConfigKind::ConfigData + (bar & 3));
+		if (sz == 1)
+			return HAL::rt_in8((UShort)PciConfigKind::ConfigData + (bar & 3));
+
+		return 0xFFFF;
+	}
+
+	void Device::Write(UInt bar, UIntPtr data, Size sz)
+	{
+		ZKA_PCISetCfgTarget(bar, fBus, fDevice, fFunction);
+
+		if (sz == 4)
+			HAL::rt_out32((UShort)PciConfigKind::ConfigData + (fBar & 3), (UInt)data);
+		if (sz == 2)
+			HAL::rt_out16((UShort)PciConfigKind::ConfigData + (fBar & 3), (UShort)data);
+		if (sz == 1)
+			HAL::rt_out8((UShort)PciConfigKind::ConfigData + (fBar & 3), (UChar)data);
+	}
+
+	UShort Device::DeviceId()
+	{
+		return (UShort)(ZKA_PCIReadRaw(0x0 >> 16, fBus, fDevice, fFunction));
+	}
+
+	UShort Device::VendorId()
+	{
+		return (UShort)(ZKA_PCIReadRaw(0x0, fBus, fDevice, fFunction) >> 16);
+	}
+
+	UShort Device::InterfaceId()
+	{
+		return (UShort)(ZKA_PCIReadRaw(0x0, fBus, fDevice, fFunction) >> 16);
+	}
+
+	UChar Device::Class()
+	{
+		return (UChar)(ZKA_PCIReadRaw(0x08, fBus, fDevice, fFunction) >> 24);
+	}
+
+	UChar Device::Subclass()
+	{
+		return (UChar)(ZKA_PCIReadRaw(0x08, fBus, fDevice, fFunction) >> 16);
+	}
+
+	UChar Device::ProgIf()
+	{
+		return (UChar)(ZKA_PCIReadRaw(0x08, fBus, fDevice, fFunction) >> 8);
+	}
+
+	UChar Device::HeaderType()
+	{
+		return (UChar)(ZKA_PCIReadRaw(0xC, fBus, fDevice, fFunction) >> 16);
+	}
+
+	void Device::EnableMmio(UInt32 bar_in)
+	{
+		bool enable = Read(bar_in, sizeof(UChar)) | (1 << 1);
+		Write(bar_in, enable, sizeof(UShort));
+	}
+
+	void Device::BecomeBusMaster(UInt32 bar_in)
+	{
+		bool enable = Read(bar_in, sizeof(UShort)) | (1 << 2);
+		Write(bar_in, enable, sizeof(UShort));
+	}
+
+	UIntPtr Device::Bar(UInt32 bar_in)
+	{
+		UInt32 bar = ZKA_PCIReadRaw(bar_in, fBus, fDevice, fFunction);
+		return bar;
+	}
+
+	UShort Device::Vendor()
+	{
+		UShort vendor = VendorId();
+
+		if (vendor != (UShort)PciConfigKind::Invalid)
+			fDevice = (UShort)Read(0x0, sizeof(UShort));
+
+		return fDevice;
+	}
+
+	Device::operator bool()
+	{
+		return VendorId() != (UShort)PciConfigKind::Invalid;
+	}
+} // namespace Kernel::PCI
diff --git a/dev/Kernel/HALKit/AMD64/PCI/Express.cc b/dev/Kernel/HALKit/AMD64/PCI/Express.cc
new file mode 100644
index 00000000..f6b5ea4e
--- /dev/null
+++ b/dev/Kernel/HALKit/AMD64/PCI/Express.cc
@@ -0,0 +1,11 @@
+/* -------------------------------------------
+
+	Copyright (C) 2024, Amlal EL Mahrouss, all rights reserved.
+
+------------------------------------------- */
+
+#include <KernelKit/PCI/Express.h>
+
+namespace Kernel
+{
+}
diff --git a/dev/Kernel/HALKit/AMD64/PCI/IO.cc b/dev/Kernel/HALKit/AMD64/PCI/IO.cc
new file mode 100644
index 00000000..c969498d
--- /dev/null
+++ b/dev/Kernel/HALKit/AMD64/PCI/IO.cc
@@ -0,0 +1,7 @@
+/* -------------------------------------------
+
+	Copyright (C) 2024, Amlal EL Mahrouss, all rights reserved.
+
+------------------------------------------- */
+
+#include <KernelKit/PCI/IO.h>
diff --git a/dev/Kernel/HALKit/AMD64/PCI/Iterator.cc b/dev/Kernel/HALKit/AMD64/PCI/Iterator.cc
new file mode 100644
index 00000000..f0289cdf
--- /dev/null
+++ b/dev/Kernel/HALKit/AMD64/PCI/Iterator.cc
@@ -0,0 +1,41 @@
+/* -------------------------------------------
+
+	Copyright (C) 2024, Amlal EL Mahrouss, all rights reserved.
+
+------------------------------------------- */
+
+#include <KernelKit/PCI/Iterator.h>
+
+namespace Kernel::PCI
+{
+	Iterator::Iterator(const Types::PciDeviceKind& type)
+	{
+		// probe devices.
+		for (int bus = 0; bus < ZKA_BUS_COUNT; ++bus)
+		{
+			for (int device = 0; device < ZKA_DEVICE_COUNT; ++device)
+			{
+				for (int function = 0; function < ZKA_FUNCTION_COUNT; ++function)
+				{
+					auto bar = 0x00;
+
+					Device dev(bus, device, function, bar);
+
+					if (dev.Class() == (UChar)type)
+					{
+						fDevices[bus] = dev;
+					}
+				}
+			}
+		}
+	}
+
+	Iterator::~Iterator()
+	{
+	}
+
+	Ref<PCI::Device> Iterator::operator[](const Size& at)
+	{
+		return fDevices[at];
+	}
+} // namespace Kernel::PCI
diff --git a/dev/Kernel/HALKit/AMD64/PCI/PCI.cc b/dev/Kernel/HALKit/AMD64/PCI/PCI.cc
new file mode 100644
index 00000000..0ade547c
--- /dev/null
+++ b/dev/Kernel/HALKit/AMD64/PCI/PCI.cc
@@ -0,0 +1,7 @@
+/* -------------------------------------------
+
+	Copyright (C) 2024, Amlal EL Mahrouss, all rights reserved.
+
+------------------------------------------- */
+
+#include <KernelKit/PCI/PCI.h>
diff --git a/dev/Kernel/HALKit/AMD64/Paging.h b/dev/Kernel/HALKit/AMD64/Paging.h
new file mode 100644
index 00000000..e58d2466
--- /dev/null
+++ b/dev/Kernel/HALKit/AMD64/Paging.h
@@ -0,0 +1,99 @@
+/* -------------------------------------------
+
+	Copyright (C) 2024, Amlal EL Mahrouss, all rights reserved.
+
+------------------------------------------- */
+
+#pragma once
+
+/** ---------------------------------------------------
+
+	* THIS FILE CONTAINS CODE FOR X86_64 PAGING.
+
+------------------------------------------------------- */
+
+#include <NewKit/Defines.h>
+
+#ifndef kPageMax
+#define kPageMax (0x200)
+#endif //! kPageMax
+
+#ifndef kPageAlign
+#define kPageAlign (0x08)
+#endif //! kPageAlign
+
+#ifndef kPageSize
+#define kPageSize (0x1000)
+#endif // !kPageSize
+
+#ifndef kAlign
+#define kAlign __BIGGEST_ALIGNMENT__
+#endif // !kAlign
+
+EXTERN_C void hal_flush_tlb();
+EXTERN_C void hal_invl_tlb(Kernel::VoidPtr addr);
+EXTERN_C void hal_write_cr3(Kernel::VoidPtr cr3);
+EXTERN_C void hal_write_cr0(Kernel::VoidPtr bit);
+
+EXTERN_C Kernel::VoidPtr hal_read_cr0(); // @brief CPU control register.
+EXTERN_C Kernel::VoidPtr hal_read_cr2(); // @brief Fault address.
+EXTERN_C Kernel::VoidPtr hal_read_cr3(); // @brief Page table.
+
+namespace Kernel::HAL
+{
+	/// @brief Final page entry (Not PML, PDPT)
+	struct PACKED ZKA_PTE final
+	{
+		UInt64 Present : 1;
+		UInt64 Wr : 1;
+		UInt64 User : 1;
+		UInt64 Wt : 1;
+		UInt64 Cache : 1;
+		UInt64 Accessed : 1;
+		UInt64 Dirty : 1;
+		UInt64 MemoryType : 1;
+		UInt64 Global : 1;
+		UInt64 Resvered1 : 3;
+		UInt64 PhysicalAddress : 36;
+		UInt64 Reserved2 : 10;
+		UInt64 ProtectionKey : 5;
+		UInt64 ExecDisable : 1;
+	};
+
+	namespace Detail
+	{
+		enum class ControlRegisterBits
+		{
+			ProtectedModeEnable = 0,
+			MonitorCoProcessor	= 1,
+			Emulation			= 2,
+			TaskSwitched		= 3,
+			ExtensionType		= 4,
+			NumericError		= 5,
+			WriteProtect		= 16,
+			AlignementMask		= 18,
+			NotWriteThrough		= 29,
+			CacheDisable		= 30,
+			PageEnable			= 31,
+		};
+
+		inline UInt8 control_register_cast(ControlRegisterBits reg)
+		{
+			return static_cast<UInt8>(reg);
+		}
+	} // namespace Detail
+
+	struct ZKA_PDE final
+	{
+		ZKA_PTE* ALIGN(kPageAlign) fEntries[kPageMax];
+	};
+
+	auto mm_alloc_bitmap(Boolean wr, Boolean user, SizeT size, Bool is_page) -> VoidPtr;
+	auto mm_free_bitmap(VoidPtr page_ptr) -> Bool;
+} // namespace Kernel::HAL
+
+namespace Kernel
+{
+	typedef HAL::ZKA_PTE PTE;
+	typedef HAL::ZKA_PDE PDE;
+} // namespace Kernel
diff --git a/dev/Kernel/HALKit/AMD64/Processor.h b/dev/Kernel/HALKit/AMD64/Processor.h
new file mode 100644
index 00000000..0e6dcfff
--- /dev/null
+++ b/dev/Kernel/HALKit/AMD64/Processor.h
@@ -0,0 +1,326 @@
+/* -------------------------------------------
+
+	Copyright (C) 2024, Amlal EL Mahrouss, all rights reserved.
+
+	File: Prcoessor.h
+	Purpose: AMD64 processor abstraction.
+
+	Revision History:
+
+	30/01/24: Added file (amlel)
+
+------------------------------------------- */
+
+#pragma once
+
+#include <NewKit/Array.h>
+#include <NewKit/Defines.h>
+#include <NewKit/Utils.h>
+#include <FirmwareKit/Handover.h>
+#include <HALKit/AMD64/Paging.h>
+
+#define kPITControlPort	 0x43
+#define kPITChannel0Port 0x40
+#define kPITFrequency	 1193180
+
+#define kPICCommand	 0x20
+#define kPICData	 0x21
+#define kPIC2Command 0xA0
+#define kPIC2Data	 0xA1
+
+EXTERN_C
+{
+#include <cpuid.h>
+}
+
+#include <HALKit/AMD64/CPUID.h>
+
+/// @brief Maximum entries of the interrupt descriptor table.
+#define kKernelIdtSize (0x100)
+
+/// @brief interrupt for system call.
+#define kKernelInterruptId (0x32)
+
+#define IsActiveLow(FLG)	  (FLG & 2)
+#define IsLevelTriggered(FLG) (FLG & 8)
+
+#define kInterruptGate (0x8E)
+#define kTrapGate	   (0xEF)
+#define kTaskGate	   (0b10001100)
+#define kIDTSelector   (0x08)
+
+namespace Kernel
+{
+	namespace Detail::AMD64
+	{
+		struct PACKED InterruptDescriptorAMD64 final
+		{
+			UInt16 OffsetLow; // offset bits 0..15
+			UInt16 Selector;  // a code segment selector in GDT or LDT
+			UInt8  Ist;
+			UInt8  TypeAttributes;
+			UInt16 OffsetMid;
+			UInt32 OffsetHigh;
+			UInt32 Zero; // reserved
+		};
+	} // namespace Detail::AMD64
+} // namespace Kernel
+
+namespace Kernel::HAL
+{
+	/// @brief Memory Manager mapping flags.
+	enum
+	{
+		kMMFlagsInvalid = 0 << 0,
+		kMMFlagsPresent = 1 << 0,
+		kMMFlagsWr		= 1 << 1,
+		kMMFlagsUser	= 1 << 2,
+		kMMFlagsNX		= 1 << 3,
+		kMMFlagsCount	= 4,
+	};
+
+	struct PACKED Register64 final
+	{
+		UShort	Limit;
+		UIntPtr Base;
+	};
+
+	struct PACKED RegisterGDT final
+	{
+		UShort	Limit;
+		UIntPtr Base;
+	};
+
+	using RawRegister = UInt64;
+	using Reg		  = RawRegister;
+	using InterruptId = UInt16; /* For each element in the IVT */
+
+	/// @brief Stack frame (as retrieved from assembly.)
+	struct PACKED StackFrame final
+	{
+		RawRegister R8{0};
+		RawRegister R9{0};
+		RawRegister R10{0};
+		RawRegister FS{0};
+		RawRegister R12{0};
+		RawRegister R13{0};
+		RawRegister R14{0};
+		RawRegister R15{0};
+		RawRegister GS{0};
+		RawRegister SP{0};
+		RawRegister BP{0};
+	};
+
+	typedef StackFrame* StackFramePtr;
+
+	class InterruptDescriptor final
+	{
+	public:
+		UShort Offset;
+		UShort Selector;
+		UChar  Ist;
+		UChar  Atrributes;
+
+		UShort SecondOffset;
+		UInt   ThirdOffset;
+		UInt   Zero;
+
+		operator bool()
+		{
+			return Offset != 0xFFFF;
+		}
+	};
+
+	using InterruptDescriptorArray = Array<InterruptDescriptor, 256>;
+
+	class SegmentDescriptor final
+	{
+	public:
+		UInt16 Base;
+		UInt8  BaseMiddle;
+		UInt8  BaseHigh;
+
+		UShort Limit;
+		UChar  Gran;
+		UChar  AccessByte;
+	};
+
+	/***
+	 * @brief Segment Boolean operations
+	 */
+	class SegmentDescriptorComparator final
+	{
+	public:
+		Bool IsValid(SegmentDescriptor& seg)
+		{
+			return seg.Base > seg.Limit;
+		}
+
+		Bool Equals(SegmentDescriptor& seg, SegmentDescriptor& segRight)
+		{
+			return seg.Base == segRight.Base && seg.Limit == segRight.Limit;
+		}
+	};
+
+	using SegmentArray = Array<SegmentDescriptor, 6>;
+
+	class GDTLoader final
+	{
+	public:
+		static Void Load(RegisterGDT& gdt);
+		static Void Load(Ref<RegisterGDT>& gdt);
+	};
+
+	class IDTLoader final
+	{
+	public:
+		static Void Load(Register64& idt);
+		static Void Load(Ref<Register64>& idt);
+	};
+
+	/***********************************************************************************/
+	/// @brief Is the current config SMP aware?
+	/// @return True if YES, False if not.
+	/***********************************************************************************/
+
+	Bool mp_is_smp(Void) noexcept;
+
+	/***********************************************************************************/
+	/// @brief Fetch and enable SMP scheduler.
+	/// @param vendor_ptr SMP containing structure.
+	/***********************************************************************************/
+	Void mp_get_cores(VoidPtr vendor_ptr) noexcept;
+
+	/***********************************************************************************/
+	/// @brief Do a cpuid to check if MSR exists on CPU.
+	/// @retval true it does exists.
+	/// @retval false it doesn't.
+	/***********************************************************************************/
+	inline Bool hal_has_msr() noexcept
+	{
+		static UInt32 eax, unused, edx; // eax, edx
+
+		__get_cpuid(1, &eax, &unused, &unused, &edx);
+
+		// edx returns the flag for MSR (which is 1 shifted to 5.)
+		return edx & (1 << 5);
+	}
+
+	/***********************************************************************************/
+	/// @brief Get Model specific register inside core.
+	/// @param msr MSR
+	/// @param lo low byte
+	/// @param hi high byte
+	/***********************************************************************************/
+	inline Void hal_get_msr(UInt32 msr, UInt32* lo, UInt32* hi) noexcept
+	{
+		if (!lo || !hi)
+			return;
+
+		asm volatile("rdmsr"
+					 : "=a"(*lo), "=d"(*hi)
+					 : "c"(msr));
+	}
+
+	/// @brief Set Model-specific register.
+	/// @param msr MSR
+	/// @param lo low byte
+	/// @param hi high byte
+	inline Void hal_set_msr(UInt32 msr, UInt32 lo, UInt32 hi) noexcept
+	{
+		asm volatile("wrmsr"
+					 :
+					 : "a"(lo), "d"(hi), "c"(msr));
+	}
+
+	/// @brief Processor specific namespace.
+	namespace Detail
+	{
+		/* @brief TSS struct. */
+		struct ZKA_TSS final
+		{
+			UInt32 fReserved1;
+			UInt64 fRsp0;
+			UInt64 fRsp1;
+			UInt64 fRsp2;
+			UInt64 fReserved2;
+			UInt64 fIst1;
+			UInt64 fIst2;
+			UInt64 fIst3;
+			UInt64 fIst4;
+			UInt64 fIst5;
+			UInt64 fIst6;
+			UInt64 fIst7;
+			UInt64 fReserved3;
+			UInt16 fReserved4;
+			UInt16 fIopb;
+		};
+
+		/**
+		  @brief Global descriptor table entry, either null, code or data.
+		*/
+
+		struct PACKED ZKA_GDT_ENTRY final
+		{
+			UInt16 fLimitLow;
+			UInt16 fBaseLow;
+			UInt8  fBaseMid;
+			UInt8  fAccessByte;
+			UInt8  fFlags;
+			UInt8  fBaseHigh;
+		};
+	} // namespace Detail
+
+	class APICController
+	{
+	public:
+		explicit APICController(VoidPtr base)
+			: fApic(base)
+		{
+		}
+
+		~APICController() = default;
+
+		ZKA_COPY_DEFAULT(APICController);
+
+	public:
+		UInt32 Read(UInt32 reg) noexcept;
+		Void   Write(UInt32 reg, UInt32 value) noexcept;
+
+	private:
+		VoidPtr fApic{nullptr};
+	};
+
+	/// @brief Set a PTE from pd_base.
+	/// @param virt_addr a valid virtual address.
+	/// @param phys_addr point to physical address.
+	/// @param flags the flags to put on the page.
+	/// @return Status code of page manip.
+	EXTERN_C Int32 mm_map_page(VoidPtr virt_addr, UInt32 flags);
+
+	EXTERN_C UInt8	rt_in8(UInt16 port);
+	EXTERN_C UInt16 rt_in16(UInt16 port);
+	EXTERN_C UInt32 rt_in32(UInt16 port);
+
+	EXTERN_C void rt_out16(UShort port, UShort byte);
+	EXTERN_C void rt_out8(UShort port, UChar byte);
+	EXTERN_C void rt_out32(UShort port, UInt byte);
+
+	EXTERN_C void rt_wait_400ns();
+	EXTERN_C void rt_halt();
+	EXTERN_C void rt_cli();
+	EXTERN_C void rt_sti();
+	EXTERN_C void rt_cld();
+	EXTERN_C void rt_std();
+} // namespace Kernel::HAL
+
+EXTERN_C Kernel::Void idt_handle_generic(Kernel::UIntPtr rsp);
+EXTERN_C Kernel::Void idt_handle_gpf(Kernel::UIntPtr rsp);
+EXTERN_C Kernel::Void idt_handle_math(Kernel::UIntPtr rsp);
+EXTERN_C Kernel::Void idt_handle_pf(Kernel::UIntPtr rsp);
+
+EXTERN_C ATTRIBUTE(naked) Kernel::Void hal_load_idt(Kernel::HAL::Register64 ptr);
+EXTERN_C ATTRIBUTE(naked) Kernel::Void hal_load_gdt(Kernel::HAL::RegisterGDT ptr);
+
+inline Kernel::VoidPtr kKernelBitMpStart = nullptr;
+inline Kernel::UIntPtr kKernelBitMpSize	 = 0UL;
diff --git a/dev/Kernel/HALKit/AMD64/ReadMe.md b/dev/Kernel/HALKit/AMD64/ReadMe.md
new file mode 100644
index 00000000..5ea0a19f
--- /dev/null
+++ b/dev/Kernel/HALKit/AMD64/ReadMe.md
@@ -0,0 +1,8 @@
+# AMD64 Hardware Abstraction Layer
+
+## Brief
+
+- Supported CPU: AMD64 BASED CPUs.
+- Supported Firmware: EDK 2.
+
+###### Copyright (C) 2024, Amlal EL Mahrouss, all rights reserved. All rights reserved.
diff --git a/dev/Kernel/HALKit/AMD64/Storage/ATA-DMA.cc b/dev/Kernel/HALKit/AMD64/Storage/ATA-DMA.cc
new file mode 100644
index 00000000..5f765d03
--- /dev/null
+++ b/dev/Kernel/HALKit/AMD64/Storage/ATA-DMA.cc
@@ -0,0 +1,38 @@
+/* -------------------------------------------
+
+	Copyright (C) 2024, Amlal EL Mahrouss, all rights reserved.
+
+------------------------------------------- */
+
+/**
+ * @file ATA-DMA.cc
+ * @author Amlal EL Mahrouss (amlalelmahrouss@icloud.com)
+ * @brief ATA driver (DMA mode).
+ * @version 0.1
+ * @date 2024-02-02
+ *
+ * @copyright Copyright (c) Amlal EL Mahrouss
+ *
+ */
+
+#include <StorageKit/PRDT.h>
+
+#include <Mod/ATA/ATA.h>
+#include <ArchKit/ArchKit.h>
+
+using namespace Kernel;
+
+EXTERN_C Int32 kPRDTTransferStatus;
+STATIC PRDT	   kPRDT;
+
+#ifdef __ATA_DMA__
+
+#ifdef __ATA_PIO__
+#error !!! You cant have both PIO and DMA enabled! !!!
+#endif /* ifdef __ATA_PIO__ */
+
+#ifdef __AHCI__
+#error !!! You cant have both ATA and AHCI enabled! !!!
+#endif /* ifdef __AHCI__ */
+
+#endif /* ifdef __ATA_DMA__ */
diff --git a/dev/Kernel/HALKit/AMD64/Storage/ATA-PIO.cc b/dev/Kernel/HALKit/AMD64/Storage/ATA-PIO.cc
new file mode 100644
index 00000000..6e523cb7
--- /dev/null
+++ b/dev/Kernel/HALKit/AMD64/Storage/ATA-PIO.cc
@@ -0,0 +1,195 @@
+/* -------------------------------------------
+
+	Copyright (C) 2024, Amlal EL Mahrouss, all rights reserved.
+
+------------------------------------------- */
+
+/**
+ * @file ATA-PIO.cc
+ * @author Amlal EL Mahrouss (amlalelmahrouss@icloud.com)
+ * @brief ATA driver (PIO mode).
+ * @version 0.1
+ * @date 2024-02-02
+ *
+ * @copyright Copyright (c) Amlal EL Mahrouss
+ *
+ */
+
+#include <Mod/ATA/ATA.h>
+#include <ArchKit/ArchKit.h>
+
+#ifdef __ATA_PIO__
+
+using namespace Kernel;
+using namespace Kernel::HAL;
+
+/// bugs: 0
+
+#define kATADataLen 256
+
+STATIC Boolean kATADetected			 = false;
+STATIC Int32   kATADeviceType		 = kATADeviceCount;
+STATIC Char	   kATAData[kATADataLen] = {0};
+
+Boolean drv_std_wait_io(UInt16 IO)
+{
+	for (int i = 0; i < 400; i++)
+		rt_in8(IO + ATA_REG_STATUS);
+
+ATAWaitForIO_Retry:
+	auto rdy = rt_in8(IO + ATA_REG_STATUS);
+
+	if ((rdy & ATA_SR_BSY))
+		goto ATAWaitForIO_Retry;
+
+ATAWaitForIO_Retry2:
+	rdy = rt_in8(IO + ATA_REG_STATUS);
+
+	if (rdy & ATA_SR_ERR)
+		return false;
+
+	if (!(rdy & ATA_SR_DRDY))
+		goto ATAWaitForIO_Retry2;
+
+	return true;
+}
+
+Void drv_std_select(UInt16 Bus)
+{
+	if (Bus == ATA_PRIMARY_IO)
+		rt_out8(Bus + ATA_REG_HDDEVSEL, ATA_PRIMARY_SEL);
+	else
+		rt_out8(Bus + ATA_REG_HDDEVSEL, ATA_SECONDARY_SEL);
+}
+
+Boolean drv_std_init(UInt16 Bus, UInt8 Drive, UInt16& OutBus, UInt8& OutMaster)
+{
+	UInt16 IO = Bus;
+
+	drv_std_select(IO);
+
+ATAInit_Retry:
+	// Bus init, NEIN bit.
+	rt_out8(IO + ATA_REG_NEIN, 1);
+
+	// identify until it's good
+
+	auto rdy = rt_in8(IO + ATA_REG_STATUS);
+
+	if (rdy & ATA_SR_ERR)
+	{
+		kcout << "ATA Error, aborting...\r";
+
+		return false;
+	}
+
+	if ((rdy & ATA_SR_BSY))
+	{
+		kcout << "Retrying as controller is busy...\r";
+		goto ATAInit_Retry;
+	}
+
+	rt_out8(IO + ATA_REG_COMMAND, ATA_CMD_IDENTIFY);
+
+	/// fetch serial info
+	/// model, speed, number of sectors...
+
+	drv_std_wait_io(IO);
+
+	for (SizeT indexData = 0ul; indexData < kATADataLen; ++indexData)
+	{
+		kATAData[indexData] = rt_in16(IO + ATA_REG_DATA);
+	}
+
+	OutBus = (Bus == ATA_PRIMARY_IO) ? ATA_PRIMARY_IO : ATA_SECONDARY_IO;
+
+	OutMaster = (Bus == ATA_PRIMARY_IO) ? ATA_MASTER : ATA_SLAVE;
+
+	return YES;
+}
+
+Void drv_std_read(UInt64 Lba, UInt16 IO, UInt8 Master, Char* Buf, SizeT SectorSz, SizeT Size)
+{
+	Lba /= SectorSz;
+
+	UInt8 Command = ((!Master) ? 0xE0 : 0xF0);
+
+	drv_std_wait_io(IO);
+	drv_std_select(IO);
+
+	rt_out8(IO + ATA_REG_HDDEVSEL, (Command) | (((Lba) >> 24) & 0x0F));
+
+	rt_out8(IO + ATA_REG_SEC_COUNT0, ((Size + SectorSz) / SectorSz));
+
+	rt_out8(IO + ATA_REG_LBA0, (Lba) & 0xFF);
+	rt_out8(IO + ATA_REG_LBA1, (Lba) >> 8);
+	rt_out8(IO + ATA_REG_LBA2, (Lba) >> 16);
+	rt_out8(IO + ATA_REG_LBA3, (Lba) >> 24);
+
+	rt_out8(IO + ATA_REG_COMMAND, ATA_CMD_READ_PIO);
+
+	drv_std_wait_io(IO);
+
+	for (SizeT IndexOff = 0; IndexOff < Size; ++IndexOff)
+	{
+		drv_std_wait_io(IO);
+		Buf[IndexOff] = rt_in16(IO + ATA_REG_DATA);
+		drv_std_wait_io(IO);
+	}
+
+	drv_std_wait_io(IO);
+}
+
+Void drv_std_write(UInt64 Lba, UInt16 IO, UInt8 Master, Char* Buf, SizeT SectorSz, SizeT Size)
+{
+	Lba /= SectorSz;
+
+	UInt8 Command = ((!Master) ? 0xE0 : 0xF0);
+
+	drv_std_wait_io(IO);
+	drv_std_select(IO);
+
+	rt_out8(IO + ATA_REG_HDDEVSEL, (Command) | (((Lba) >> 24) & 0x0F));
+
+	rt_out8(IO + ATA_REG_SEC_COUNT0, ((Size + (SectorSz)) / SectorSz));
+
+	rt_out8(IO + ATA_REG_LBA0, (Lba) & 0xFF);
+	rt_out8(IO + ATA_REG_LBA1, (Lba) >> 8);
+	rt_out8(IO + ATA_REG_LBA2, (Lba) >> 16);
+	rt_out8(IO + ATA_REG_LBA3, (Lba) >> 24);
+
+	rt_out8(IO + ATA_REG_COMMAND, ATA_CMD_WRITE_PIO);
+
+	drv_std_wait_io(IO);
+
+	for (SizeT IndexOff = 0; IndexOff < Size; ++IndexOff)
+	{
+		drv_std_wait_io(IO);
+		rt_out16(IO + ATA_REG_DATA, Buf[IndexOff]);
+		drv_std_wait_io(IO);
+	}
+
+	drv_std_wait_io(IO);
+}
+
+/// @brief is ATA detected?
+Boolean drv_std_detected(Void)
+{
+	return kATADetected;
+}
+
+/***
+	@brief Getter, gets the number of sectors inside the drive.
+*/
+Kernel::SizeT drv_get_sector_count()
+{
+	return (kATAData[61] << 16) | kATAData[60];
+}
+
+/// @brief Get the drive size.
+Kernel::SizeT drv_get_size()
+{
+	return (drv_get_sector_count()) * kATASectorSize;
+}
+
+#endif /* ifdef __ATA_PIO__ */
diff --git a/dev/Kernel/HALKit/AMD64/Storage/SATA-DMA.cc b/dev/Kernel/HALKit/AMD64/Storage/SATA-DMA.cc
new file mode 100644
index 00000000..74afcde3
--- /dev/null
+++ b/dev/Kernel/HALKit/AMD64/Storage/SATA-DMA.cc
@@ -0,0 +1,316 @@
+/* -------------------------------------------
+
+	Copyright (C) 2024, Amlal EL Mahrouss, all rights reserved.
+
+------------------------------------------- */
+
+/**
+ * @file AHCI.cc
+ * @author Amlal EL Mahrouss (amlalelmahrouss@icloud.com)
+ * @brief AHCI driver.
+ * @version 0.1
+ * @date 2024-02-02
+ *
+ * @Copyright (C) 2024, Amlal EL Mahrouss, all rights reserved.
+ *
+ */
+
+#include <KernelKit/UserProcessScheduler.h>
+#include <KernelKit/LPC.h>
+
+#include <Mod/ATA/ATA.h>
+#include <Mod/AHCI/AHCI.h>
+#include <KernelKit/PCI/Iterator.h>
+#include <NewKit/Utils.h>
+#include <KernelKit/LockDelegate.h>
+
+#ifdef __AHCI__
+
+#define kHBAErrTaskFile (1 << 30)
+#define kHBAPxCmdST		0x0001
+#define kHBAPxCmdFre	0x0010
+#define kHBAPxCmdFR		0x4000
+#define kHBAPxCmdCR		0x8000
+
+#define kSataLBAMode (1 << 6)
+
+#define kAhciSRBsy (0x80)
+#define kAhciSRDrq (0x08)
+
+#define kAhciPortCnt 32
+
+enum
+{
+	kSATAProgIfAHCI = 0x01,
+	kSATASubClass	= 0x06,
+	kSATABar5		= 0x24,
+};
+
+STATIC Kernel::PCI::Device kPCIDevice;
+STATIC HbaMem*			   kSATAPort	   = nullptr;
+STATIC Kernel::SizeT kSATAPortIdx		   = 0UL;
+STATIC Kernel::Lba kCurrentDiskSectorCount = 0UL;
+
+template <BOOL Write, BOOL CommandOrCTRL, BOOL Identify>
+static Kernel::Void drv_std_input_output(Kernel::UInt64 lba, Kernel::UInt8* buffer, Kernel::SizeT sector_sz, Kernel::SizeT size_buffer) noexcept;
+
+static Kernel::Int32 drv_find_cmd_slot(HbaPort* port) noexcept;
+
+static Kernel::Void drv_calculate_disk_geometry() noexcept;
+
+static Kernel::Void drv_calculate_disk_geometry() noexcept
+{
+	kCurrentDiskSectorCount = 0UL;
+
+	Kernel::UInt8 identify_data[kib_cast(4)] = {};
+
+	drv_std_input_output<NO, YES, YES>(0, identify_data, 0, kib_cast(8));
+
+	kCurrentDiskSectorCount = (identify_data[61] << 16) | identify_data[60];
+
+	kcout << "Disk Size: " << Kernel::number(drv_get_size()) << endl;
+	kcout << "Highest LBA: " << Kernel::number(kCurrentDiskSectorCount) << endl;
+}
+
+/// @brief Initializes an AHCI disk.
+/// @param PortsImplemented the amount of kSATAPort that have been detected.
+/// @return if the disk was successfully initialized or not.
+Kernel::Boolean drv_std_init(Kernel::UInt16& PortsImplemented)
+{
+	using namespace Kernel;
+
+	PCI::Iterator iterator(Types::PciDeviceKind::MassStorageController);
+
+	for (SizeT device_index = 0; device_index < ZKA_BUS_COUNT; ++device_index)
+	{
+		kPCIDevice = iterator[device_index].Leak(); // And then leak the reference.
+
+		// if SATA and then interface is AHCI...
+		if (kPCIDevice.Subclass() == kSATASubClass &&
+			kPCIDevice.ProgIf() == kSATAProgIfAHCI)
+		{
+			kPCIDevice.EnableMmio(0x24);	  // Enable the memory index_byte/o for this ahci device.
+			kPCIDevice.BecomeBusMaster(0x24); // Become bus master for this ahci device, so that we can control it.
+
+			HbaMem* mem_ahci = (HbaMem*)kPCIDevice.Bar(0x24);
+
+			Kernel::UInt32 ports_implemented = mem_ahci->Pi;
+			Kernel::UInt16 ahci_index		 = 0;
+
+			const Kernel::UInt16 kMaxPortsImplemented = kAhciPortCnt;
+			const Kernel::UInt32 kSATASignature		  = 0x00000101;
+			const Kernel::UInt8	 kAhciPresent		  = 0x03;
+			const Kernel::UInt8	 kAhciIPMActive		  = 0x01;
+
+			Kernel::Boolean detected = false;
+
+			while (ahci_index < kMaxPortsImplemented)
+			{
+				if (ports_implemented)
+				{
+					kcout << "Port is implemented.\r";
+
+					Kernel::UInt8 ipm = (mem_ahci->Ports[ahci_index].Ssts >> 8) & 0x0F;
+					Kernel::UInt8 det = mem_ahci->Ports[ahci_index].Ssts & 0x0F;
+
+					if (mem_ahci->Ports[ahci_index].Sig == kSATASignature)
+					{
+						kcout << "Port is SATA.\r";
+
+						kSATAPortIdx = ahci_index;
+						kSATAPort	 = mem_ahci;
+
+						kSATAPort->Ports[kSATAPortIdx].Cmd &= ~kHBAPxCmdST;
+						kSATAPort->Ports[kSATAPortIdx].Cmd &= ~kHBAPxCmdFre;
+
+						while (YES)
+						{
+							if (kSATAPort->Ports[kSATAPortIdx].Cmd & kHBAPxCmdFR)
+								continue;
+							if (kSATAPort->Ports[kSATAPortIdx].Cmd & kHBAPxCmdCR)
+								continue;
+
+							break;
+						}
+
+						const auto kAHCIBaseAddress = mib_cast(4);
+
+						kSATAPort->Ports[kSATAPortIdx].Clb	= kAHCIBaseAddress + (kSATAPortIdx << 10);
+						kSATAPort->Ports[kSATAPortIdx].Clbu = 0;
+
+						rt_set_memory((VoidPtr)((UIntPtr)kSATAPort->Ports[kSATAPortIdx].Clb), 0, 1024);
+
+						kSATAPort->Ports[kSATAPortIdx].Fb  = kAHCIBaseAddress + (32 << 10) + (kSATAPortIdx << 8);
+						kSATAPort->Ports[kSATAPortIdx].Fbu = 0;
+
+						rt_set_memory((VoidPtr)((UIntPtr)kSATAPort->Ports[kSATAPortIdx].Fb), 0, 256);
+
+						HbaCmdHeader* cmdheader = (HbaCmdHeader*)((UIntPtr)kSATAPort->Ports[kSATAPortIdx].Clb);
+
+						for (int i = 0; i < 32; i++)
+						{
+							cmdheader[i].Prdtl = 8;
+
+							cmdheader[i].Ctba  = kAHCIBaseAddress + (40 << 10) + (kSATAPortIdx << 13) + (i << 8);
+							cmdheader[i].Ctbau = 0;
+
+							rt_set_memory((VoidPtr)(UIntPtr)cmdheader[i].Ctba, 0, 256);
+						}
+
+						while (kSATAPort->Ports[kSATAPortIdx].Cmd & kHBAPxCmdCR)
+						{
+						}
+
+						kSATAPort->Ports[kSATAPortIdx].Cmd |= kHBAPxCmdFre;
+						kSATAPort->Ports[kSATAPortIdx].Cmd |= kHBAPxCmdST;
+
+						drv_calculate_disk_geometry();
+
+						detected = YES;
+
+						break;
+					}
+				}
+
+				ports_implemented >>= 1;
+				++ahci_index;
+			}
+
+			return detected;
+		}
+	}
+
+	return No;
+}
+
+Kernel::Boolean drv_std_detected(Kernel::Void)
+{
+	return kPCIDevice.DeviceId() != 0xFFFF;
+}
+
+Kernel::Void drv_std_write(Kernel::UInt64 lba, Kernel::Char* buffer, Kernel::SizeT sector_sz, Kernel::SizeT size_buffer)
+{
+	drv_std_input_output<YES, YES, NO>(lba, (Kernel::UInt8*)buffer, sector_sz, size_buffer);
+}
+
+Kernel::Void drv_std_read(Kernel::UInt64 lba, Kernel::Char* buffer, Kernel::SizeT sector_sz, Kernel::SizeT size_buffer)
+{
+	drv_std_input_output<NO, YES, NO>(lba, (Kernel::UInt8*)buffer, sector_sz, size_buffer);
+}
+
+static Kernel::Int32 drv_find_cmd_slot(HbaPort* port) noexcept
+{
+	if (port == nullptr)
+		return -1;
+
+	Kernel::UInt32 slots = (kSATAPort->Ports[kSATAPortIdx].Sact | kSATAPort->Ports[kSATAPortIdx].Ci);
+
+	for (Kernel::Int32 i = 0; i < ((kSATAPort->Cap & 0x1F) + 1); i++)
+	{
+		if ((slots & 1) == 0)
+			return i;
+
+		slots >>= 1;
+	}
+
+	return -1;
+}
+
+template <BOOL Write, BOOL CommandOrCTRL, BOOL Identify>
+static Kernel::Void drv_std_input_output(Kernel::UInt64 lba, Kernel::UInt8* buffer, Kernel::SizeT sector_sz, Kernel::SizeT size_buffer) noexcept
+{
+	if (!CommandOrCTRL)
+		return;
+
+	kSATAPort->Ports[kSATAPortIdx].Is = -1;
+
+	auto slot = 0L;
+
+	slot = drv_find_cmd_slot(&kSATAPort->Ports[kSATAPortIdx]);
+
+	if (slot == -1)
+		return;
+
+	volatile HbaCmdHeader* command_header = ((volatile HbaCmdHeader*)((Kernel::UInt64)kSATAPort->Ports[kSATAPortIdx].Clb + kSATAPort->Ports[kSATAPortIdx].Clbu));
+
+	command_header += slot;
+
+	MUST_PASS(command_header);
+
+	command_header->Cfl	  = sizeof(FisRegH2D) / sizeof(Kernel::UInt32);
+	command_header->Write = Write;
+	command_header->Prdtl = (Kernel::UInt16)((size_buffer - 1) >> 4) + 1;
+
+	volatile HbaCmdTbl* command_table = (volatile HbaCmdTbl*)((Kernel::UInt64)command_header->Ctba + command_header->Ctbau);
+
+	MUST_PASS(command_table);
+
+	for (Kernel::SizeT i = 0; i < (command_header->Prdtl - 1); i++)
+	{
+		command_table->PrdtEntries[i].Dba		   = ((Kernel::UInt32)(Kernel::UInt64)buffer & 0xFFFFFFFF);
+		command_table->PrdtEntries[i].Dbau		   = (((Kernel::UInt64)buffer >> 32) & 0xFFFFFFFF);
+		command_table->PrdtEntries[i].Dbc		   = (size_buffer - 1);
+		command_table->PrdtEntries[i].InterruptBit = YES;
+
+		size_buffer -= 16;
+		buffer += kib_cast(4);
+	}
+
+	volatile FisRegH2D* h2d_fis = (volatile FisRegH2D*)((Kernel::UInt64)command_table->Cfis);
+
+	h2d_fis->FisType = kFISTypeRegH2D;
+
+	h2d_fis->CmdOrCtrl = YES;
+
+	h2d_fis->Command = Write ? kAHCICmdWriteDmaEx : kAHCICmdReadDmaEx;
+
+	if (Identify)
+		h2d_fis->Command = kAHCICmdIdentify;
+
+	h2d_fis->Lba0 = lba;
+	h2d_fis->Lba1 = lba >> 8;
+	h2d_fis->Lba2 = lba >> 16;
+	h2d_fis->Lba3 = lba >> 24;
+
+	h2d_fis->Device = kSataLBAMode;
+
+	h2d_fis->CountLow  = sector_sz & 0xFF;
+	h2d_fis->CountHigh = (sector_sz >> 8) & 0xFF;
+
+	while ((kSATAPort->Ports[kSATAPortIdx].Tfd & (kAhciSRBsy | kAhciSRDrq)))
+	{
+		kcout << "waiting for slot to be ready\r\n";
+	}
+
+	kSATAPort->Is = -1;
+	kSATAPort->Ports[kSATAPortIdx].Ci |= 1 << slot;
+
+	while (kSATAPort->Ports[kSATAPortIdx].Ci & (1 << slot))
+	{
+		kcout << Kernel::number(slot) << endl;
+
+		if (kSATAPort->Is & kHBAErrTaskFile) // check for task file error.
+		{
+			Kernel::ke_panic(RUNTIME_CHECK_BAD_BEHAVIOR, "AHCI Read disk failure, faulty component.");
+			return;
+		}
+	}
+}
+
+/***
+	@brief Gets the number of sectors inside the drive.
+	@return Sector size in bytes.
+ */
+Kernel::SizeT drv_get_sector_count()
+{
+	return kCurrentDiskSectorCount;
+}
+
+/// @brief Get the drive size.
+/// @return Disk size in bytes.
+Kernel::SizeT drv_get_size()
+{
+	return (drv_get_sector_count()) * kAHCISectorSize;
+}
+
+#endif // ifdef __AHCI__
diff --git a/dev/Kernel/HALKit/AMD64/make_ap_blob.sh b/dev/Kernel/HALKit/AMD64/make_ap_blob.sh
new file mode 100755
index 00000000..3f079187
--- /dev/null
+++ b/dev/Kernel/HALKit/AMD64/make_ap_blob.sh
@@ -0,0 +1,3 @@
+# !/bin/sh
+
+nasm -f bin HalApplicationProcessorStartup.asm -o HalApplicationProcessorStartup.bin
\ No newline at end of file
diff --git a/dev/Kernel/HALKit/ARM64/APM/APM+IO.cc b/dev/Kernel/HALKit/ARM64/APM/APM+IO.cc
new file mode 100644
index 00000000..ba29bd61
--- /dev/null
+++ b/dev/Kernel/HALKit/ARM64/APM/APM+IO.cc
@@ -0,0 +1,37 @@
+/* -------------------------------------------
+
+	Copyright (C) 2024, Amlal EL Mahrouss, all rights reserved.
+
+------------------------------------------- */
+
+#include <Mod/APM/APM.h>
+#include <KernelKit/LPC.h>
+
+using namespace Kernel;
+
+/// @brief Send APM command to it's space.
+/// @param base_dma the IO base port.
+/// @param cmd the command.
+/// @return status code.
+EXTERN_C Int32 apm_send_io_command(UInt16 cmd, APMPowerCmd value)
+{
+	switch (cmd)
+	{
+	case kAPMPowerCommandReboot: {
+		asm volatile(
+			"ldr x0, =0x84000004\n"
+			"svc #0\n");
+
+		return kErrorSuccess;
+	}
+	case kAPMPowerCommandShutdown: {
+		asm volatile(
+			"ldr x0, =0x84000008\n"
+			"svc #0\n");
+
+		return kErrorSuccess;
+	}
+	default:
+		return kErrorInvalidData;
+	}
+}
diff --git a/dev/Kernel/HALKit/ARM64/ApplicationProcessor.h b/dev/Kernel/HALKit/ARM64/ApplicationProcessor.h
new file mode 100644
index 00000000..cccb9d77
--- /dev/null
+++ b/dev/Kernel/HALKit/ARM64/ApplicationProcessor.h
@@ -0,0 +1,19 @@
+/* -------------------------------------------
+
+	Copyright (C) 2024, Amlal EL Mahrouss, all rights reserved.
+
+------------------------------------------- */
+
+#pragma once
+
+#include <NewKit/Defines.h>
+#include <HALKit/ARM64/Processor.h>
+
+/************************************************** */
+/*     INITIALIZE THE GIC ON CPU.              */
+/************************************************** */
+
+namespace Kernel
+{
+	BOOL mp_initialize_gic(Kernel::Void);
+}
\ No newline at end of file
diff --git a/dev/Kernel/HALKit/ARM64/HalACPIFactoryInterface.cc b/dev/Kernel/HALKit/ARM64/HalACPIFactoryInterface.cc
new file mode 100644
index 00000000..69459f66
--- /dev/null
+++ b/dev/Kernel/HALKit/ARM64/HalACPIFactoryInterface.cc
@@ -0,0 +1,31 @@
+/* -------------------------------------------
+
+	Copyright (C) 2024, Amlal EL Mahrouss, all rights reserved.
+
+------------------------------------------- */
+
+#include <Mod/ACPI/ACPIFactoryInterface.h>
+#include <NewKit/KString.h>
+#include <ArchKit/ArchKit.h>
+#include <KernelKit/Heap.h>
+#include <Mod/APM/APM.h>
+
+namespace Kernel
+{
+	ACPIFactoryInterface::ACPIFactoryInterface(VoidPtr rsp_ptr)
+		: fRsdp(rsp_ptr), fEntries(0)
+	{
+	}
+
+	Void ACPIFactoryInterface::Shutdown()
+	{
+		apm_send_io_command(kAPMPowerCommandShutdown, 0);
+	}
+
+	/// @brief Reboot machine in either ACPI or by triple faulting.
+	/// @return nothing it's a reboot.
+	Void ACPIFactoryInterface::Reboot()
+	{
+		apm_send_io_command(kAPMPowerCommandReboot, 0);
+	}
+} // namespace Kernel
diff --git a/dev/Kernel/HALKit/ARM64/HalApplicationProcessor.cc b/dev/Kernel/HALKit/ARM64/HalApplicationProcessor.cc
new file mode 100644
index 00000000..6b09a415
--- /dev/null
+++ b/dev/Kernel/HALKit/ARM64/HalApplicationProcessor.cc
@@ -0,0 +1,136 @@
+/* -------------------------------------------

+

+	Copyright (C) 2024, Amlal EL Mahrouss, all rights reserved.

+

+------------------------------------------- */

+

+#include <HALKit/ARM64/Processor.h>

+#include <KernelKit/DebugOutput.h>

+#include <HALKit/ARM64/ApplicationProcessor.h>

+#include <KernelKit/UserProcessScheduler.h>

+

+#define GICD_BASE 0x08000000 // Distributor base address

+#define GICC_BASE 0x08010000 // CPU interface base address

+

+#define GICD_CTLR		0x000 // Distributor Control Register

+#define GICD_ISENABLER	0x100 // Interrupt Set-Enable Registers

+#define GICD_ICENABLER	0x180 // Interrupt Clear-Enable Registers

+#define GICD_ISPENDR	0x200 // Interrupt Set-Pending Registers

+#define GICD_ICPENDR	0x280 // Interrupt Clear-Pending Registers

+#define GICD_IPRIORITYR 0x400 // Interrupt Priority Registers

+#define GICD_ITARGETSR	0x800 // Interrupt Processor Targets Registers

+#define GICD_ICFGR		0xC00 // Interrupt Configuration Registers

+

+#define GICC_CTLR 0x000 // CPU Interface Control Register

+#define GICC_PMR  0x004 // Interrupt Priority Mask Register

+#define GICC_IAR  0x00C // Interrupt Acknowledge Register

+#define GICC_EOIR 0x010 // End of Interrupt Register

+

+// ================================================================= //

+

+namespace Kernel

+{

+	struct PROCESS_CONTROL_BLOCK final

+	{

+		HAL::StackFramePtr mFrame;

+	};

+

+	STATIC PROCESS_CONTROL_BLOCK kProcessBlocks[kSchedProcessLimitPerTeam] = {0};

+

+	namespace Detail

+	{

+		STATIC BOOL kGICEnabled = NO;

+

+		STATIC void mp_hang_fn(void)

+		{

+			while (YES)

+				;

+		}

+

+		Void mp_setup_gic_el0(Void)

+		{

+			// enable distributor.

+			HAL::hal_mmio_write(GICD_BASE + GICD_CTLR, YES);

+

+			UInt32 gicc_ctlr = HAL::hal_mmio_read<UInt32>(GICC_BASE + GICC_CTLR);

+

+			const auto kEnableSignalInt = YES;

+

+			gicc_ctlr |= kEnableSignalInt;		  // Enable signaling of interrupts

+			gicc_ctlr |= (kEnableSignalInt << 1); // Allow Group 1 interrupts in EL0

+

+			HAL::hal_mmio_write(GICC_BASE + GICC_CTLR, gicc_ctlr);

+

+			// Set priority mask (accept all priorities)

+			HAL::hal_mmio_write(GICC_BASE + GICC_PMR, 0xFF);

+

+			UInt32 icfgr = HAL::hal_mmio_read<UInt32>(GICD_BASE + GICD_ICFGR + (32 / 16) * 4);

+

+			icfgr |= (0x2 << ((32 % 16) * 2)); // Edge-triggered

+			HAL::hal_mmio_write(GICD_BASE + GICD_ICFGR + (32 / 16) * 4, icfgr);

+

+			// Target interrupt 32 to CPU 1

+			HAL::hal_mmio_write(GICD_BASE + GICD_ITARGETSR + (32 / 4) * 4, 0x2 << ((32 % 4) * 8));

+

+			// Set interrupt 32 priority to lowest (0xFF)

+			HAL::hal_mmio_write(GICD_BASE + GICD_IPRIORITYR + (32 / 4) * 4, 0xFF << ((32 % 4) * 8));

+

+			// Enable interrupt 32 for AP.

+			HAL::hal_mmio_write(GICD_BASE + GICD_ISENABLER + (32 / 32) * 4, 0x01 << (32 % 32));

+

+			kcout << "AP's GIC configured in ISR 32." << endl;

+		}

+

+		BOOL mp_handle_gic_interrupt_el0(Void)

+		{

+			// Read the interrupt ID

+			UInt32 interrupt_id = HAL::hal_mmio_read<UInt32>(GICC_BASE + GICC_IAR);

+

+			// Check if it's a valid interrupt (not spurious)

+			if ((interrupt_id & 0x3FF) < 1020)

+			{

+				kcout << "Handling interrupt for AP: " << (interrupt_id & 0x3FF) << endl;

+

+				// TODO: Handle code here.

+

+				// End the interrupt

+

+				HAL::hal_mmio_write(GICC_BASE + GICC_EOIR, interrupt_id);

+

+				return YES;

+			}

+

+			// spurious interrupt

+			return NO;

+		}

+	} // namespace Detail

+

+	EXTERN_C HAL::StackFramePtr mp_get_current_context(ProcessID pid)

+	{

+		return kProcessBlocks[pid % kSchedProcessLimitPerTeam].mFrame;

+	}

+

+	EXTERN_C Bool mp_register_process(HAL::StackFramePtr stack_frame, ProcessID pid)

+	{

+		MUST_PASS(stack_frame);

+

+		const auto process_index = pid % kSchedProcessLimitPerTeam;

+

+		kProcessBlocks[process_index].mFrame = stack_frame;

+

+		return YES;

+	}

+

+	BOOL mp_initialize_gic(Void)

+	{

+		if (!Detail::kGICEnabled)

+		{

+			Detail::kGICEnabled = YES;

+			Detail::mp_setup_gic_el0();

+

+			return YES;

+		}

+

+		return NO;

+	}

+} // namespace Kernel
\ No newline at end of file
diff --git a/dev/Kernel/HALKit/ARM64/HalDebugOutput.cc b/dev/Kernel/HALKit/ARM64/HalDebugOutput.cc
new file mode 100644
index 00000000..e2b2db88
--- /dev/null
+++ b/dev/Kernel/HALKit/ARM64/HalDebugOutput.cc
@@ -0,0 +1,83 @@
+/* -------------------------------------------
+
+	Copyright (C) 2024, Amlal EL Mahrouss, all rights reserved.
+
+------------------------------------------- */
+
+#include <ArchKit/ArchKit.h>
+#include <KernelKit/DebugOutput.h>
+#include <NewKit/Utils.h>
+#include <NewKit/New.h>
+
+namespace Kernel
+{
+	EXTERN_C void ke_io_write(const Char* bytes)
+	{
+#ifdef __DEBUG__
+		if (*bytes == 0)
+			return;
+
+		SizeT index = 0;
+		SizeT len	= 0;
+
+		index = 0;
+		len	  = rt_string_len(bytes, 255);
+
+		volatile UInt8* uart_ptr = (UInt8*)0x09000000;
+
+		while (index < len)
+		{
+			if (bytes[index] == '\r')
+				*uart_ptr = '\r';
+
+			*uart_ptr = bytes[index] == '\r' ? '\n' : bytes[index];
+			++index;
+		}
+#endif // __DEBUG__
+	}
+
+	TerminalDevice::~TerminalDevice() = default;
+
+	EXTERN_C void ke_io_read(const Char* bytes)
+	{
+#ifdef __DEBUG__
+		SizeT index = 0;
+
+		volatile UInt8* uart_ptr = (UInt8*)0x09000000;
+
+		///! TODO: Look on how to wait for the UART to complete.
+		while (Yes)
+		{
+			auto in = *uart_ptr;
+
+			///! If enter pressed then break.
+			if (in == 0xD)
+			{
+				break;
+			}
+
+			if (in < '0' || in < 'A' || in < 'a')
+			{
+				if (in != '@' || in != '!' || in != '?' || in != '.' || in != '/' ||
+					in != ':')
+				{
+					continue;
+				}
+			}
+
+			((char*)bytes)[index] = in;
+
+			++index;
+		}
+
+		((char*)bytes)[index] = 0;
+#endif // __DEBUG__
+	}
+
+	TerminalDevice TerminalDevice::The() noexcept
+	{
+		TerminalDevice out(Kernel::ke_io_write, Kernel::ke_io_read);
+		return out;
+	}
+
+} // namespace Kernel
diff --git a/dev/Kernel/HALKit/ARM64/HalKernelMain.cc b/dev/Kernel/HALKit/ARM64/HalKernelMain.cc
new file mode 100644
index 00000000..7756facd
--- /dev/null
+++ b/dev/Kernel/HALKit/ARM64/HalKernelMain.cc
@@ -0,0 +1,52 @@
+/* -------------------------------------------
+
+	Copyright (C) 2024, Amlal EL Mahrouss, all rights reserved.
+
+------------------------------------------- */
+
+#include <ArchKit/ArchKit.h>
+#include <Mod/CoreGfx/FBMgr.h>
+#include <FirmwareKit/Handover.h>
+#include <KernelKit/FileMgr.h>
+#include <KernelKit/Heap.h>
+#include <KernelKit/PEFCodeMgr.h>
+#include <KernelKit/UserProcessScheduler.h>
+#include <NewKit/Json.h>
+#include <KernelKit/CodeMgr.h>
+#include <Mod/ACPI/ACPIFactoryInterface.h>
+#include <NetworkKit/IPC.h>
+#include <HALKit/ARM64/Processor.h>
+#include <CFKit/Property.h>
+
+EXTERN_C void hal_init_platform(
+	Kernel::HEL::BootInfoHeader* handover_hdr)
+{
+
+	/************************************************** */
+	/*     INITIALIZE AND VALIDATE HEADER.              */
+	/************************************************** */
+
+	kHandoverHeader = handover_hdr;
+
+	if (kHandoverHeader->f_Magic != kHandoverMagic &&
+		kHandoverHeader->f_Version != kHandoverVersion)
+	{
+		return;
+	}
+
+	/************************************** */
+	/*     INITIALIZE BIT MAP.              */
+	/************************************** */
+
+	kKernelBitMpSize  = kHandoverHeader->f_BitMapSize;
+	kKernelBitMpStart = reinterpret_cast<Kernel::VoidPtr>(
+		reinterpret_cast<Kernel::UIntPtr>(kHandoverHeader->f_BitMapStart));
+
+	/// @note do initialize the interrupts after it.
+
+	Kernel::mp_initialize_gic();
+
+	while (YES)
+	{
+	}
+}
diff --git a/dev/Kernel/HALKit/ARM64/HalKernelPanic.cc b/dev/Kernel/HALKit/ARM64/HalKernelPanic.cc
new file mode 100644
index 00000000..8be2db2f
--- /dev/null
+++ b/dev/Kernel/HALKit/ARM64/HalKernelPanic.cc
@@ -0,0 +1,80 @@
+/* -------------------------------------------
+
+	Copyright (C) 2024, Amlal EL Mahrouss, all rights reserved.
+
+------------------------------------------- */
+
+#include <NewKit/KernelPanic.h>
+#include <ArchKit/ArchKit.h>
+#include <KernelKit/Timer.h>
+#include <KernelKit/DebugOutput.h>
+#include <NewKit/KString.h>
+#include <FirmwareKit/Handover.h>
+#include <KernelKit/FileMgr.h>
+#include <Mod/CoreGfx/FBMgr.h>
+#include <Mod/CoreGfx/TextMgr.h>
+#include <NewKit/Utils.h>
+
+/* Each error code is attributed with an ID, which will prompt a string onto the
+ * screen. Wait for debugger... */
+
+namespace Kernel
+{
+	/// @brief Dumping factory class.
+	class RecoveryFactory final
+	{
+	public:
+		STATIC Void Recover() noexcept;
+	};
+
+	/***********************************************************************************/
+	/// @brief Stops execution of the kernel.
+	/// @param id kernel stop ID.
+	/***********************************************************************************/
+	Void ke_panic(const Kernel::Int32& id, const Char* message)
+	{
+		fb_init();
+
+		auto panic_text = RGB(0xff, 0xff, 0xff);
+
+		auto y = 10;
+		auto x = 10;
+
+		Char* message_apicid = new Char[128];
+		rt_set_memory(message_apicid, 0, 128);
+
+		rt_copy_memory((VoidPtr) "panic id: ", message_apicid, rt_string_len("panic id: "));
+		rt_to_string(message_apicid + rt_string_len("panic id: "), (UIntPtr)id, 10);
+
+		fb_render_string(message_apicid, y, x, panic_text);
+
+		y += 10;
+
+		fb_render_string((message ? message : "message: panic raised, going nowhere after this!"), y, x, panic_text);
+
+		y += 10;
+
+		fb_clear();
+
+		RecoveryFactory::Recover();
+	}
+
+	Void RecoveryFactory::Recover() noexcept
+	{
+		while (YES)
+		{
+			HAL::rt_halt();
+		}
+	}
+
+	void ke_runtime_check(bool expr, const Char* file, const Char* line)
+	{
+		if (!expr)
+		{
+			kcout << "FAILED: FILE: " << file << endl;
+			kcout << "FAILED: LINE: " << line << endl;
+
+			ke_panic(RUNTIME_CHECK_FAILED, file); // Runtime Check failed
+		}
+	}
+} // namespace Kernel
diff --git a/dev/Kernel/HALKit/ARM64/HalPageInternal.S b/dev/Kernel/HALKit/ARM64/HalPageInternal.S
new file mode 100644
index 00000000..8fcf40ff
--- /dev/null
+++ b/dev/Kernel/HALKit/ARM64/HalPageInternal.S
@@ -0,0 +1,5 @@
+.text
+
+hal_flush_tlb:
+    tlbi
+    ret
diff --git a/dev/Kernel/HALKit/ARM64/HalPagingMgrARM64.cc b/dev/Kernel/HALKit/ARM64/HalPagingMgrARM64.cc
new file mode 100644
index 00000000..0991fd37
--- /dev/null
+++ b/dev/Kernel/HALKit/ARM64/HalPagingMgrARM64.cc
@@ -0,0 +1,86 @@
+/* -------------------------------------------
+
+	Copyright (C) 2024, Amlal EL Mahrouss, all rights reserved.
+
+	File: HalPagingMgr.cc
+	Purpose: Platform Paging Manager..
+
+------------------------------------------- */
+
+#include <HALKit/ARM64/Paging.h>
+#include <HALKit/ARM64/Processor.h>
+
+namespace Kernel::HAL
+{
+	typedef UInt32 PageTableIndex;
+
+	/// \brief Page store type.
+	struct ZKA_PAGE_STORE final
+	{
+		struct
+		{
+			PDE*	fPde{nullptr};
+			PTE*	fPte{nullptr};
+			VoidPtr fVAddr{nullptr};
+		} fInternalStore;
+
+		Bool fStoreOp{No}; // Store operation in progress.
+
+		static ZKA_PAGE_STORE& The()
+		{
+			static ZKA_PAGE_STORE the;
+			return the;
+		}
+	};
+
+	/// \brief Retrieve the page status of a PTE.
+	STATIC Void mmi_page_status(PTE* pte)
+	{
+	}
+
+	STATIC Int32 mmi_map_page_table_entry(VoidPtr virtual_address, UInt32 flags, PTE* pt_entry);
+
+	/// @brief Maps or allocates a page from virtual_address.
+	/// @param virtual_address a valid virtual address.
+	/// @param phys_addr point to physical address.
+	/// @param flags the flags to put on the page.
+	/// @return Status code of page manipulation process.
+	EXTERN_C Int32 mm_map_page(VoidPtr virtual_address, UInt32 flags)
+	{
+		if (!virtual_address ||
+			!flags)
+			return 0;
+
+		ZKA_PAGE_STORE& page_store = ZKA_PAGE_STORE::The();
+
+		while (page_store.fStoreOp)
+			;
+
+		page_store.fStoreOp = Yes;
+
+		if (page_store.fInternalStore.fVAddr == virtual_address)
+		{
+			page_store.fStoreOp = No;
+			return mmi_map_page_table_entry(page_store.fInternalStore.fVAddr, flags, page_store.fInternalStore.fPte);
+		}
+
+		return 1;
+	}
+
+	/// @brief Maps flags for a specific pte.
+	/// @internal Internal function.
+	STATIC Int32 mmi_map_page_table_entry(VoidPtr virtual_address, UInt32 flags, PTE* pt_entry)
+	{
+		ZKA_PAGE_STORE& page_store = ZKA_PAGE_STORE::The();
+
+		// Update Internal store.
+
+		page_store.fInternalStore.fPde	 = nullptr;
+		page_store.fInternalStore.fPte	 = pt_entry;
+		page_store.fInternalStore.fVAddr = virtual_address;
+
+		page_store.fStoreOp = No;
+
+		return 0;
+	}
+} // namespace Kernel::HAL
diff --git a/dev/Kernel/HALKit/ARM64/HalSchedulerCoreARM64.cc b/dev/Kernel/HALKit/ARM64/HalSchedulerCoreARM64.cc
new file mode 100644
index 00000000..ff1dd448
--- /dev/null
+++ b/dev/Kernel/HALKit/ARM64/HalSchedulerCoreARM64.cc
@@ -0,0 +1,24 @@
+/* -------------------------------------------
+
+	Copyright (C) 2024, Amlal EL Mahrouss, all rights reserved.
+
+------------------------------------------- */
+
+#include <KernelKit/UserProcessScheduler.h>
+
+namespace Kernel
+{
+	/// @brief Wakes up thread.
+	/// Wakes up thread from the hang state.
+	Void mp_wakeup_thread(HAL::StackFrame* stack)
+	{
+		ZKA_UNUSED(stack);
+	}
+
+	/// @brief makes the thread sleep on a loop.
+	/// hooks and hangs thread to prevent code from executing.
+	Void mp_hang_thread(HAL::StackFrame* stack)
+	{
+		ZKA_UNUSED(stack);
+	}
+} // namespace Kernel
diff --git a/dev/Kernel/HALKit/ARM64/HalSchedulerCorePrimitivesARM64.cc b/dev/Kernel/HALKit/ARM64/HalSchedulerCorePrimitivesARM64.cc
new file mode 100644
index 00000000..b254e670
--- /dev/null
+++ b/dev/Kernel/HALKit/ARM64/HalSchedulerCorePrimitivesARM64.cc
@@ -0,0 +1,35 @@
+/* -------------------------------------------

+

+	Copyright (C) 2024, Amlal EL Mahrouss, all rights reserved.

+

+------------------------------------------- */

+

+#include <HALKit/ARM64/Processor.h>

+#include <KernelKit/UserProcessScheduler.h>

+

+namespace Kernel

+{

+	/***********************************************************************************/

+	/// @brief Unimplemented function (crashes by default)

+	/// @param void

+	/***********************************************************************************/

+

+	EXTERN_C Void __zka_pure_call(UserProcess* process)

+	{

+		if (process)

+			process->Crash();

+	}

+

+	/***********************************************************************************/

+	/// @brief Validate user stack.

+	/// @param stack_ptr the frame pointer.

+	/***********************************************************************************/

+

+	EXTERN_C Bool hal_check_stack(HAL::StackFramePtr stack_ptr)

+	{

+		if (!stack_ptr)

+			return No;

+

+		return stack_ptr->SP != 0 && stack_ptr->BP != 0;

+	}

+} // namespace Kernel

diff --git a/dev/Kernel/HALKit/ARM64/HalTimerARM64.cc b/dev/Kernel/HALKit/ARM64/HalTimerARM64.cc
new file mode 100644
index 00000000..f860c5a2
--- /dev/null
+++ b/dev/Kernel/HALKit/ARM64/HalTimerARM64.cc
@@ -0,0 +1,14 @@
+/* -------------------------------------------
+
+	Copyright (C) 2024, Amlal EL Mahrouss, all rights reserved.
+
+	File: HalTimer.cc
+	Purpose: HAL timer
+
+	Revision History:
+
+	07/07/24: Added file (amlel)
+
+------------------------------------------- */
+
+#include <ArchKit/ArchKit.h>
diff --git a/dev/Kernel/HALKit/ARM64/MBCI/MBCI.cc b/dev/Kernel/HALKit/ARM64/MBCI/MBCI.cc
new file mode 100644
index 00000000..d9c39f4a
--- /dev/null
+++ b/dev/Kernel/HALKit/ARM64/MBCI/MBCI.cc
@@ -0,0 +1,7 @@
+/* -------------------------------------------
+
+	Copyright (C) 2025, Amlal EL Mahrouss, all rights reserved.
+
+------------------------------------------- */
+
+#include <Mod/MBCI/MBCI.h>
\ No newline at end of file
diff --git a/dev/Kernel/HALKit/ARM64/Paging.h b/dev/Kernel/HALKit/ARM64/Paging.h
new file mode 100644
index 00000000..f20c9fcf
--- /dev/null
+++ b/dev/Kernel/HALKit/ARM64/Paging.h
@@ -0,0 +1,120 @@
+/* -------------------------------------------
+
+	Copyright (C) 2024, Amlal EL Mahrouss, all rights reserved.
+
+------------------------------------------- */
+
+#pragma once
+
+/** ---------------------------------------------------
+
+	* THIS FILE CONTAINS CODE FOR ARMV8 PAGING.
+
+------------------------------------------------------- */
+
+#include <NewKit/Defines.h>
+
+#ifndef kPageMax
+#define kPageMax (0x200)
+#endif //! kPageMax
+
+#ifndef kPageAlign
+#define kPageAlign (0x1000)
+#endif //! kPageAlign
+
+#ifndef kPageSize
+#define kPageSize (0x1000)
+#endif // !kPageSize
+
+//! short format address range
+
+#define c16KBPage 0b000
+#define c8KBPage  0b001
+#define c4KBPage  0b010
+#define c2KBPage  0b011
+#define c1KBPage  0b100
+#define c512BPage 0b101
+#define c256BPage 0b110
+#define c128BPage 0b111
+
+/// Long format address range
+
+#define cPageMAll    \
+	{                \
+		0b000, 0b000 \
+	}
+#define cPageMToMax(M) \
+	{                  \
+		M, 0b000       \
+	}
+#define cPageMaxToM(M) \
+	{                  \
+		0b000, M       \
+	}
+#define cPageMToN(M, N) \
+	{                   \
+		M, N            \
+	}
+
+namespace Kernel::HAL
+{
+	struct PACKED PTE_4KB final
+	{
+		UInt64 Valid : 1;
+		UInt64 Table : 1;
+		UInt64 AttrIndex : 3;
+		UInt64 NS : 1;
+		UInt64 AP : 2;
+		UInt64 SH : 2;
+		UInt64 AF : 1;
+		UInt64 NG : 1;
+		UInt64 Reserved1 : 1;
+		UInt64 Contiguous : 1;
+		UInt64 Dirty : 1;
+		UInt64 Reserved : 2;
+		UInt64 PhysicalAddress : 36;
+		UInt64 Reserved3 : 4;
+		UInt64 PXN : 1;
+		UInt64 XN : 1;
+		UInt64 Reserved4 : 9;
+	};
+
+	namespace Detail
+	{
+		enum class ControlRegisterBits
+		{
+			ProtectedModeEnable = 0,
+			MonitorCoProcessor	= 1,
+			Emulation			= 2,
+			TaskSwitched		= 3,
+			ExtensionType		= 4,
+			NumericError		= 5,
+			WriteProtect		= 16,
+			AlignementMask		= 18,
+			NotWriteThrough		= 29,
+			CacheDisable		= 30,
+			PageEnable			= 31,
+		};
+
+		inline UInt8 control_register_cast(ControlRegisterBits reg)
+		{
+			return static_cast<UInt8>(reg);
+		}
+	} // namespace Detail
+
+	struct PDE_4KB final
+	{
+		PTE_4KB ALIGN(kPageAlign) fEntries[kPageMax];
+	};
+
+	auto mm_alloc_bitmap(Boolean wr, Boolean user, SizeT size, Bool is_page) -> VoidPtr;
+	auto mm_free_bitmap(VoidPtr page_ptr) -> Bool;
+} // namespace Kernel::HAL
+
+namespace Kernel
+{
+	typedef HAL::PTE_4KB PTE;
+	typedef HAL::PDE_4KB PDE;
+} // namespace Kernel
+
+EXTERN_C void hal_flush_tlb();
diff --git a/dev/Kernel/HALKit/ARM64/Processor.h b/dev/Kernel/HALKit/ARM64/Processor.h
new file mode 100644
index 00000000..2e640a7f
--- /dev/null
+++ b/dev/Kernel/HALKit/ARM64/Processor.h
@@ -0,0 +1,86 @@
+/* -------------------------------------------
+
+	Copyright (C) 2024, Amlal EL Mahrouss, all rights reserved.
+
+------------------------------------------- */
+
+#pragma once
+
+#include <NewKit/Array.h>
+#include <NewKit/Defines.h>
+#include <NewKit/Utils.h>
+#include <FirmwareKit/Handover.h>
+
+#define kCPUBackendName "ARMv8"
+
+namespace Kernel::HAL
+{
+	struct PACKED Register64 final
+	{
+		UShort	Limit;
+		UIntPtr Base;
+	};
+
+	/// @brief Memory Manager mapping flags.
+	enum
+	{
+		kMMFlagsPresent = 1 << 0,
+		kMMFlagsWr		= 1 << 1,
+		kMMFlagsUser	= 1 << 2,
+		kMMFlagsNX		= 1 << 3,
+		kMMFlagsCount	= 3,
+	};
+
+	/// @brief Set a PTE from pd_base.
+	/// @param virt_addr a valid virtual address.
+	/// @param phys_addr point to physical address.
+	/// @param flags the flags to put on the page.
+	/// @return Status code of page manip.
+	EXTERN_C Int32 mm_map_page(VoidPtr virt_addr, UInt32 flags);
+
+	typedef UIntPtr	   Reg;
+	typedef Register64 Register;
+
+	/// @note let's keep the same name as AMD64 HAL.
+	struct PACKED StackFrame final
+	{
+		Reg R8{0};
+		Reg R9{0};
+		Reg R10{0};
+		Reg R11{0};
+		Reg R12{0};
+		Reg R13{0};
+		Reg R14{0};
+		Reg R15{0};
+		Reg SP{0};
+		Reg BP{0};
+	};
+
+	typedef StackFrame* StackFramePtr;
+
+	inline Void rt_halt() noexcept
+	{
+		while (Yes)
+		{
+		}
+	}
+
+	template <typename DataKind>
+	inline void hal_mmio_write(UIntPtr address, DataKind value)
+	{
+		*reinterpret_cast<volatile DataKind*>(address) = value;
+	}
+
+	template <typename DataKind>
+	inline DataKind hal_mmio_read(UIntPtr address)
+	{
+		return *reinterpret_cast<volatile DataKind*>(address);
+	}
+} // namespace Kernel::HAL
+
+inline Kernel::VoidPtr kKernelBitMpStart = nullptr;
+inline Kernel::UIntPtr kKernelBitMpSize	 = 0UL;
+
+inline Kernel::VoidPtr kKernelPhysicalStart = nullptr;
+
+#include <HALKit/ARM64/Paging.h>
diff --git a/dev/Kernel/HALKit/ARM64/ReadMe.md b/dev/Kernel/HALKit/ARM64/ReadMe.md
new file mode 100644
index 00000000..c51229f2
--- /dev/null
+++ b/dev/Kernel/HALKit/ARM64/ReadMe.md
@@ -0,0 +1,3 @@
+# ARM64 Hardware Abstraction Layer
+
+- Supported Firmware: CoreBoot/EDK/OpenMobileBoot
diff --git a/dev/Kernel/HALKit/ARM64/Storage/MFlash+IO.cc b/dev/Kernel/HALKit/ARM64/Storage/MFlash+IO.cc
new file mode 100644
index 00000000..bcde2435
--- /dev/null
+++ b/dev/Kernel/HALKit/ARM64/Storage/MFlash+IO.cc
@@ -0,0 +1,84 @@
+/* -------------------------------------------
+
+	Copyright (C) 2024-2025, Amlal EL Mahrouss, all rights reserved.
+
+------------------------------------------- */
+
+#ifdef ZKA_USE_MBCI_FLASH
+
+#include <NewKit/Defines.h>
+#include <ArchKit/ArchKit.h>
+#include <Mod/MFlash/MFlash.h>
+#include <Mod/MBCI/MBCI.h>
+
+/// @file MFlash.cc
+/// @brief MBCI Flash support.
+
+#define kMaxFlashSlots (8U)
+
+namespace Kernel
+{
+	/// /Mount/Flash/n
+	constexpr auto kFlashBridgeMagic	= "FLSH";
+	constexpr auto kFlashBridgeRevision = 1;
+
+	STATIC BOOL		  kFlashEnabled						= NO;
+	STATIC SizeT	  kFlashSize[kMaxFlashSlots]		= {};
+	STATIC SizeT	  kFlashSectorSz[kMaxFlashSlots]	= {};
+	STATIC IMBCIHost* kFlashMetaPackets[kMaxFlashSlots] = {};
+	STATIC IMBCIHost* kFlashDataPackets[kMaxFlashSlots] = {};
+
+	/// @brief Enable flash memory builtin.
+	STATIC Void drv_enable_flash(Int32 slot);
+
+	/// @brief Disable flash memory builtin.
+	STATIC Void drv_disable_flash(Int32 slot);
+
+	/// @brief get slot sector count.
+	/// @return slot sector count.
+	SizeT drv_get_sector_count(Int32 slot)
+	{
+		if (slot > kMaxFlashSlots)
+			return 0;
+
+		return kFlashSectorSz[slot];
+	}
+
+	/// @brief get slot full size (in bytes).
+	/// @return drive slot size
+	SizeT drv_get_size(Int32 slot)
+	{
+		if (slot > kMaxFlashSlots)
+			return 0;
+
+		return kFlashSize[slot];
+	}
+
+	/// @brief Enable flash memory at slot.
+	BOOL drv_enable_at(Int32 slot)
+	{
+		if (slot > kMaxFlashSlots)
+			return NO;
+
+		kFlashMetaPackets[slot]->InterruptEnable = YES;
+
+		kcout << "Enabled hardware slot at: " << number(slot) << endl;
+
+		return YES;
+	}
+
+	/// @brief Disable flash memory at slot.
+	BOOL drv_disable_at(Int32 slot)
+	{
+		if (slot > kMaxFlashSlots)
+			return NO;
+
+		kFlashMetaPackets[slot]->InterruptEnable = NO;
+
+		kcout << "Disabled hardware slot at: " << number(slot) << endl;
+
+		return YES;
+	}
+} // namespace Kernel
+
+#endif // if ZKA_USE_MBCI_FLASH
diff --git a/dev/Kernel/HALKit/AXP/CR.s b/dev/Kernel/HALKit/AXP/CR.s
new file mode 100644
index 00000000..4d68257d
--- /dev/null
+++ b/dev/Kernel/HALKit/AXP/CR.s
@@ -0,0 +1,11 @@
+.globl read_lr1
+.globl read_lr0
+
+.section .text
+    read_lr0:
+        movq %r30, %cr3
+        ret
+
+    hal_read_cr0:
+        movq %r30, %cr0
+        ret
\ No newline at end of file
diff --git a/dev/Kernel/HALKit/AXP/CoreInterruptHandlerDEC.cpp b/dev/Kernel/HALKit/AXP/CoreInterruptHandlerDEC.cpp
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/dev/Kernel/HALKit/AXP/CoreInterruptHandlerDEC.cpp
diff --git a/dev/Kernel/HALKit/AXP/CoreSyscallHandlerDEC.cpp b/dev/Kernel/HALKit/AXP/CoreSyscallHandlerDEC.cpp
new file mode 100644
index 00000000..76f90c82
--- /dev/null
+++ b/dev/Kernel/HALKit/AXP/CoreSyscallHandlerDEC.cpp
@@ -0,0 +1,24 @@
+/* -------------------------------------------
+
+	Copyright (C) 2024, Amlal EL Mahrouss, all rights reserved.
+
+------------------------------------------- */
+
+#include <ArchKit/ArchKit.h>
+#include <HALKit/AXP/Processor.h>
+
+/// @brief Internal call for syscall, to work with C++.
+/// @param stack
+/// @return nothing.
+EXTERN_C void rt_syscall_handle(Kernel::HAL::StackFrame* stack)
+{
+	if (stack->Rcx <= (kSyscalls.Count() - 1))
+	{
+		kcout << "syscall: enter.\r";
+
+		if (kSyscalls[stack->Rcx].Leak().Leak().fHooked)
+			(kSyscalls[stack->Rcx].Leak().Leak().fProc)(stack);
+
+		kcout << "syscall: exit.\r";
+	}
+}
diff --git a/dev/Kernel/HALKit/AXP/HAL.s b/dev/Kernel/HALKit/AXP/HAL.s
new file mode 100644
index 00000000..0178527f
--- /dev/null
+++ b/dev/Kernel/HALKit/AXP/HAL.s
@@ -0,0 +1,13 @@
+.globl rt_wait_400ns
+
+.section .text
+rt_wait_400ns:
+    jmp .L
+.L:
+	jmp .L2
+	wtint ;; wait for interrupt
+.L2:
+
+    ret
+
+
diff --git a/dev/Kernel/HALKit/AXP/Processor.h b/dev/Kernel/HALKit/AXP/Processor.h
new file mode 100644
index 00000000..f183c100
--- /dev/null
+++ b/dev/Kernel/HALKit/AXP/Processor.h
@@ -0,0 +1,7 @@
+/* -------------------------------------------
+
+	Copyright (C) 2024, Amlal EL Mahrouss, all rights reserved.
+
+------------------------------------------- */
+
+#pragma once
diff --git a/dev/Kernel/HALKit/AXP/README b/dev/Kernel/HALKit/AXP/README
new file mode 100644
index 00000000..91e7b134
--- /dev/null
+++ b/dev/Kernel/HALKit/AXP/README
@@ -0,0 +1 @@
+This is for DEC Alpha.
diff --git a/dev/Kernel/HALKit/AXP/README.TXT b/dev/Kernel/HALKit/AXP/README.TXT
new file mode 100644
index 00000000..11e138f9
--- /dev/null
+++ b/dev/Kernel/HALKit/AXP/README.TXT
@@ -0,0 +1 @@
+An toy HAL to test the Kernel portability.
diff --git a/dev/Kernel/HALKit/AXP/SYSCALL.s b/dev/Kernel/HALKit/AXP/SYSCALL.s
new file mode 100644
index 00000000..19cab808
--- /dev/null
+++ b/dev/Kernel/HALKit/AXP/SYSCALL.s
@@ -0,0 +1,10 @@
+.section .text
+system_handle_user_call:
+	.cfi_startproc
+
+	push %r0
+	jmp %r1
+	mov %r30, %r2
+
+	.cfi_endproc
+	retsys
\ No newline at end of file
diff --git a/dev/Kernel/HALKit/AXP/VM.s b/dev/Kernel/HALKit/AXP/VM.s
new file mode 100644
index 00000000..7024086b
--- /dev/null
+++ b/dev/Kernel/HALKit/AXP/VM.s
@@ -0,0 +1,5 @@
+.global hal_flush_tlb
+
+.section .text
+hal_flush_tlb:
+	swppal
\ No newline at end of file
diff --git a/dev/Kernel/HALKit/POWER/.gitkeep b/dev/Kernel/HALKit/POWER/.gitkeep
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/dev/Kernel/HALKit/POWER/.gitkeep
diff --git a/dev/Kernel/HALKit/POWER/AP.h b/dev/Kernel/HALKit/POWER/AP.h
new file mode 100644
index 00000000..ba79b888
--- /dev/null
+++ b/dev/Kernel/HALKit/POWER/AP.h
@@ -0,0 +1,39 @@
+/* -------------------------------------------
+
+	Copyright (C) 2024, Amlal EL Mahrouss, all rights reserved.
+
+	File: AP.h
+	Purpose: POWER hardware threads.
+
+	Revision History:
+
+	14/04/24: Added file (amlel)
+
+------------------------------------------- */
+
+#pragma once
+
+#include <NewKit/Defines.h>
+
+namespace Kernel
+{
+	struct HAL_HARDWARE_THREAD;
+
+	/// @brief hardware thread indentification type.
+	typedef Kernel::Int32 hal_ap_kind;
+
+	/// @brief Hardware thread information structure.
+	typedef struct HAL_HARDWARE_THREAD
+	{
+		Kernel::UIntPtr fStartAddress;
+		Kernel::UInt8	fPrivleged : 1;
+		Kernel::UInt32	fPageMemoryFlags;
+		hal_ap_kind		fIdentNumber;
+	} HAL_HARDWARE_THREAD;
+
+	/// @brief Set PC to specific hart.
+	/// @param hart the hart
+	/// @param epc the pc.
+	/// @return
+	EXTERN_C Kernel::Void hal_set_pc_to_hart(HAL_HARDWARE_THREAD* hart, Kernel::VoidPtr epc);
+} // namespace Kernel
diff --git a/dev/Kernel/HALKit/POWER/APM/.gitkeep b/dev/Kernel/HALKit/POWER/APM/.gitkeep
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/dev/Kernel/HALKit/POWER/APM/.gitkeep
diff --git a/dev/Kernel/HALKit/POWER/HalAP.cc b/dev/Kernel/HALKit/POWER/HalAP.cc
new file mode 100644
index 00000000..2475bfba
--- /dev/null
+++ b/dev/Kernel/HALKit/POWER/HalAP.cc
@@ -0,0 +1,40 @@
+/* -------------------------------------------
+
+	Copyright (C) 2024, Amlal EL Mahrouss, all rights reserved.
+
+------------------------------------------- */
+
+#include <HALKit/POWER/Processor.h>
+#include <KernelKit/DebugOutput.h>
+#include <HALKit/POWER/AP.h>
+
+using namespace Kernel;
+
+namespace Kernel::Detail
+{
+	STATIC void mp_hang_fn(void)
+	{
+		while (YES)
+			;
+	}
+} // namespace Kernel::Detail
+
+/// @brief wakes up thread.
+/// wakes up thread from hang.
+void mp_wakeup_thread(HAL::StackFramePtr stack)
+{
+	if (!stack)
+		return;
+
+	hal_set_pc_to_hart(reinterpret_cast<HAL_HARDWARE_THREAD*>(stack->R15), reinterpret_cast<VoidPtr>(stack->BP));
+}
+
+/// @brief makes thread sleep.
+/// hooks and hangs thread to prevent code from executing.
+void mp_hang_thread(HAL::StackFramePtr stack)
+{
+	if (!stack)
+		return;
+
+	hal_set_pc_to_hart(reinterpret_cast<HAL_HARDWARE_THREAD*>(stack->R15), reinterpret_cast<VoidPtr>(Kernel::Detail::mp_hang_fn));
+}
diff --git a/dev/Kernel/HALKit/POWER/HalDebugOutput.cc b/dev/Kernel/HALKit/POWER/HalDebugOutput.cc
new file mode 100644
index 00000000..91805d87
--- /dev/null
+++ b/dev/Kernel/HALKit/POWER/HalDebugOutput.cc
@@ -0,0 +1,27 @@
+/* -------------------------------------------
+
+	Copyright (C) 2024, Amlal EL Mahrouss, all rights reserved.
+
+------------------------------------------- */
+
+#include <HALKit/POWER/Processor.h>
+#include <KernelKit/DebugOutput.h>
+
+using namespace Kernel;
+
+/// @brief Writes to COM1.
+/// @param bytes
+void ke_io_write(const Char* bytes)
+{
+	if (!bytes)
+		return;
+
+	SizeT index = 0;
+	SizeT len	= rt_string_len(bytes, 255);
+
+	while (index < len)
+	{
+		// TODO
+		++index;
+	}
+}
diff --git a/dev/Kernel/HALKit/POWER/HalStartSequence.s b/dev/Kernel/HALKit/POWER/HalStartSequence.s
new file mode 100644
index 00000000..a8124dce
--- /dev/null
+++ b/dev/Kernel/HALKit/POWER/HalStartSequence.s
@@ -0,0 +1,14 @@
+/* -------------------------------------------
+
+    Copyright (C) 2024, Amlal EL Mahrouss, all rights reserved.
+
+------------------------------------------- */
+
+.globl __ImageStart
+.extern hal_init_platform
+.align 4
+.text
+
+__ImageStart:
+	bl hal_init_platform
+	blr
diff --git a/dev/Kernel/HALKit/POWER/HalThread.cc b/dev/Kernel/HALKit/POWER/HalThread.cc
new file mode 100644
index 00000000..2e650b30
--- /dev/null
+++ b/dev/Kernel/HALKit/POWER/HalThread.cc
@@ -0,0 +1,8 @@
+/* -------------------------------------------
+
+	Copyright (C) 2024, Amlal EL Mahrouss, all rights reserved.
+
+------------------------------------------- */
+
+#include <HALKit/POWER/Processor.h>
+#include <KernelKit/DebugOutput.h>
diff --git a/dev/Kernel/HALKit/POWER/HalVirtualMemory.cc b/dev/Kernel/HALKit/POWER/HalVirtualMemory.cc
new file mode 100644
index 00000000..3ed0ef3d
--- /dev/null
+++ b/dev/Kernel/HALKit/POWER/HalVirtualMemory.cc
@@ -0,0 +1,49 @@
+/* -------------------------------------------
+
+	Copyright (C) 2024, Amlal EL Mahrouss, all rights reserved.
+
+------------------------------------------- */
+
+#include <HALKit/POWER/Processor.h>
+#include <KernelKit/DebugOutput.h>
+#include <HALKit/POWER/MMU.h>
+
+/// @note Refer to SoC documentation.
+
+using namespace Kernel;
+
+EXTERN_C Void hal_write_tlb(UInt32 mas0, UInt32 mas1, UInt32 mas2, UInt32 mas3, UInt32 mas7)
+{
+	hal_mtspr(MAS0, mas0);
+	hal_mtspr(MAS1, mas1);
+	hal_mtspr(MAS2, mas2);
+	hal_mtspr(MAS3, mas3);
+	hal_mtspr(MAS7, mas7);
+
+	hal_flush_tlb();
+}
+
+EXTERN_C Bool hal_set_tlb(UInt8 tlb, UInt32 epn, UInt64 rpn, UInt8 perms, UInt8 wimge, UInt8 ts, UInt8 esel, UInt8 tsize, UInt8 iprot)
+{
+	if ((hal_mfspr(SPRN_MMUCFG) & MMUCFG_MAVN) == MMUCFG_MAVN_V1 && (tsize & 1))
+	{
+		// this MMU does not allow odd tsize values
+		return false;
+	}
+
+	UInt32 mas0 = FSL_BOOKE_MAS0(tlb, esel, 0);
+	UInt32 mas1 = FSL_BOOKE_MAS1(1, iprot, 0, ts, tsize);
+	UInt32 mas2 = FSL_BOOKE_MAS2(epn, wimge);
+	UInt32 mas3 = FSL_BOOKE_MAS3(rpn, 0, perms);
+	UInt32 mas7 = FSL_BOOKE_MAS7(rpn);
+
+	hal_write_tlb(mas0, mas1, mas2, mas3, mas7);
+
+	return true;
+}
+
+/// @brief Flush TLB
+EXTERN_C void hal_flush_tlb()
+{
+	asm volatile("isync;tlbwe;msync;isync");
+}
diff --git a/dev/Kernel/HALKit/POWER/MBCI/.gitkeep b/dev/Kernel/HALKit/POWER/MBCI/.gitkeep
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/dev/Kernel/HALKit/POWER/MBCI/.gitkeep
diff --git a/dev/Kernel/HALKit/POWER/MBCI/HalMBCIHost.cc b/dev/Kernel/HALKit/POWER/MBCI/HalMBCIHost.cc
new file mode 100644
index 00000000..2e650b30
--- /dev/null
+++ b/dev/Kernel/HALKit/POWER/MBCI/HalMBCIHost.cc
@@ -0,0 +1,8 @@
+/* -------------------------------------------
+
+	Copyright (C) 2024, Amlal EL Mahrouss, all rights reserved.
+
+------------------------------------------- */
+
+#include <HALKit/POWER/Processor.h>
+#include <KernelKit/DebugOutput.h>
diff --git a/dev/Kernel/HALKit/POWER/Processor.h b/dev/Kernel/HALKit/POWER/Processor.h
new file mode 100644
index 00000000..10908b35
--- /dev/null
+++ b/dev/Kernel/HALKit/POWER/Processor.h
@@ -0,0 +1,62 @@
+/* -------------------------------------------
+
+	Copyright (C) 2024, Amlal EL Mahrouss, all rights reserved.
+
+	Purpose: POWER processor header.
+
+------------------------------------------- */
+
+#pragma once
+
+#include <NewKit/Defines.h>
+#include <NewKit/Utils.h>
+
+#define NoOp()			 asm volatile("mr 0, 0")
+#define kHalPPCAlignment __attribute__((aligned(4)))
+
+namespace Kernel::HAL
+{
+	typedef UIntPtr Reg;
+
+	/// @brief Stack frame (as retrieved from assembly.)
+	struct PACKED StackFrame final
+	{
+		Reg R8{0};
+		Reg R9{0};
+		Reg R10{0};
+		Reg R11{0};
+		Reg R12{0};
+		Reg R13{0};
+		Reg R14{0};
+		Reg R15{0};
+		Reg SP{0};
+		Reg BP{0};
+	};
+
+	typedef StackFrame* StackFramePtr;
+
+	inline void rt_halt()
+	{
+		while (true)
+		{
+			NoOp(); // no oop.
+		}
+	}
+
+	inline void rt_cli()
+	{
+		NoOp(); // no oop
+	}
+} // namespace Kernel::HAL
+
+EXTERN_C Kernel::Void int_handle_math(Kernel::UIntPtr sp);
+EXTERN_C Kernel::Void int_handle_pf(Kernel::UIntPtr sp);
+
+/// @brief Set TLB.
+Kernel::Bool hal_set_tlb(Kernel::UInt8 tlb, Kernel::UInt32 epn, Kernel::UInt64 rpn, Kernel::UInt8 perms, Kernel::UInt8 wimge, Kernel::UInt8 ts, Kernel::UInt8 esel, Kernel::UInt8 tsize, Kernel::UInt8 iprot);
+
+/// @brief Write TLB.
+Kernel::Void hal_write_tlb(Kernel::UInt32 mas0, Kernel::UInt32 mas1, Kernel::UInt32 mas2, Kernel::UInt32 mas3, Kernel::UInt32 mas7);
+
+/// @brief Flush TLB.
+EXTERN_C Kernel::Void hal_flush_tlb();
diff --git a/dev/Kernel/HALKit/POWER/ReadMe.md b/dev/Kernel/HALKit/POWER/ReadMe.md
new file mode 100644
index 00000000..a9751581
--- /dev/null
+++ b/dev/Kernel/HALKit/POWER/ReadMe.md
@@ -0,0 +1,4 @@
+POWER Hardware Abstraction Layer
+
+- Supported CPU: POWER
+- Supported Firmware: CoreBoot
\ No newline at end of file
diff --git a/dev/Kernel/HALKit/RISCV/.keep b/dev/Kernel/HALKit/RISCV/.keep
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/dev/Kernel/HALKit/RISCV/.keep
diff --git a/dev/Kernel/HALKit/RISCV/AP.h b/dev/Kernel/HALKit/RISCV/AP.h
new file mode 100644
index 00000000..05de4727
--- /dev/null
+++ b/dev/Kernel/HALKit/RISCV/AP.h
@@ -0,0 +1,36 @@
+/* -------------------------------------------
+
+	Copyright (C) 2024, Amlal EL Mahrouss, all rights reserved.
+
+	File: AP.h
+	Purpose: RISC-V hardware threads.
+
+	Revision History:
+
+	30/01/24: Added file (amlel)
+
+------------------------------------------- */
+
+#pragma once
+
+#include <NewKit/Defines.h>
+
+namespace Kernel
+{
+	typedef Int64 hal_ap_kind;
+
+	typedef struct HAL_HARDWARE_THREAD
+	{
+		Kernel::UIntPtr fStartAddress;
+		Kernel::UInt8	fPrivleged : 1;
+		Kernel::UInt32	fPageMemoryFlags;
+		hal_ap_kind		fIdentNumber;
+	} HAL_HARDWARE_THREAD;
+
+	/// @brief Set PC to specific hart.
+	/// @param hart the hart
+	/// @param epc the pc.
+	/// @return
+	EXTERN_C Kernel::Void hal_set_pc_to_hart(HAL_HARDWARE_THREAD* hart, Kernel::VoidPtr epc);
+
+} // namespace Kernel
diff --git a/dev/Kernel/HALKit/RISCV/APM/.gitkeep b/dev/Kernel/HALKit/RISCV/APM/.gitkeep
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/dev/Kernel/HALKit/RISCV/APM/.gitkeep
diff --git a/dev/Kernel/HALKit/RISCV/HalAP.cc b/dev/Kernel/HALKit/RISCV/HalAP.cc
new file mode 100644
index 00000000..619a03d4
--- /dev/null
+++ b/dev/Kernel/HALKit/RISCV/HalAP.cc
@@ -0,0 +1,40 @@
+/* -------------------------------------------

+

+	Copyright (C) 2024, Amlal EL Mahrouss, all rights reserved.

+

+------------------------------------------- */

+

+#include <HALKit/RISCV/Processor.h>

+#include <KernelKit/DebugOutput.h>

+#include <HALKit/RISCV/AP.h>

+

+using namespace Kernel;

+

+namespace Kernel::Detail

+{

+	STATIC void mp_hang_fn(void)

+	{

+		while (YES)

+			;

+	}

+} // namespace Kernel::Detail

+

+/// @brief wakes up thread.

+/// wakes up thread from hang.

+void mp_wakeup_thread(HAL::StackFramePtr stack)

+{

+	if (!stack)

+		return;

+

+	hal_set_pc_to_hart(reinterpret_cast<HAL_HARDWARE_THREAD*>(stack->R15), reinterpret_cast<VoidPtr>(stack->BP));

+}

+

+/// @brief makes thread sleep.

+/// hooks and hangs thread to prevent code from executing.

+void mp_hang_thread(HAL::StackFramePtr stack)

+{

+	if (!stack)

+		return;

+

+	hal_set_pc_to_hart(reinterpret_cast<HAL_HARDWARE_THREAD*>(stack->R15), reinterpret_cast<VoidPtr>(Kernel::Detail::mp_hang_fn));

+}

diff --git a/dev/Kernel/HALKit/RISCV/ReadMe.md b/dev/Kernel/HALKit/RISCV/ReadMe.md
new file mode 100644
index 00000000..b099aa31
--- /dev/null
+++ b/dev/Kernel/HALKit/RISCV/ReadMe.md
@@ -0,0 +1,4 @@
+RISCV64 Hardware Abstraction Layer
+
+- Supported CPU: RISCV64
+- Supported Firmware: CoreBoot
\ No newline at end of file
diff --git a/dev/Kernel/HALKit/RISCV/Storage/.gitkeep b/dev/Kernel/HALKit/RISCV/Storage/.gitkeep
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/dev/Kernel/HALKit/RISCV/Storage/.gitkeep
diff --git a/dev/Kernel/HALKit/X86S/.gitkeep b/dev/Kernel/HALKit/X86S/.gitkeep
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/dev/Kernel/HALKit/X86S/.gitkeep
diff --git a/dev/Kernel/HALKit/X86S/ACPI/.gitkeep b/dev/Kernel/HALKit/X86S/ACPI/.gitkeep
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/dev/Kernel/HALKit/X86S/ACPI/.gitkeep
diff --git a/dev/Kernel/HALKit/X86S/Storage/.gitkeep b/dev/Kernel/HALKit/X86S/Storage/.gitkeep
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/dev/Kernel/HALKit/X86S/Storage/.gitkeep