1 files changed, 111 insertions, 0 deletions
diff --git a/src/kernel/HALKit/AMD64/HalACPIFactoryInterface.cpp b/src/kernel/HALKit/AMD64/HalACPIFactoryInterface.cpp
new file mode 100644
index 00000000..7368ea10
--- /dev/null
+++ b/src/kernel/HALKit/AMD64/HalACPIFactoryInterface.cpp
@@ -0,0 +1,111 @@
+// Copyright 2024-2025, Amlal El Mahrouss (amlal@nekernel.org)
+// Licensed under the Apache License, Version 2.0 (see LICENSE file)
+// Official repository: https://github.com/nekernel-org/nekernel
+
+#include <ArchKit/ArchKit.h>
+#include <HALKit/AMD64/Processor.h>
+#include <KernelKit/HeapMgr.h>
+#include <NeKit/KString.h>
+#include <modules/ACPI/ACPIFactoryInterface.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) {}
+
+Bool ACPIFactoryInterface::Shutdown() {
+  return NO;
+}
+
+/// @brief Reboot machine in either ACPI or by triple faulting.
+/// @return nothing it's a reboot.
+Void ACPIFactoryInterface::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