6 files changed, 79 insertions, 0 deletions
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..c198a404
--- /dev/null
+++ b/dev/kernel/HALKit/RISCV/AP.h
@@ -0,0 +1,35 @@
+/* -------------------------------------------
+
+	Copyright (C) 2024-2025, 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 NeOS
+{
+	typedef Int64 hal_ap_kind;
+
+	typedef struct HAL_HARDWARE_THREAD
+	{
+		NeOS::UIntPtr fStartAddress;
+		NeOS::UInt8	  fPrivleged : 1;
+		NeOS::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 NeOS::Void hal_set_pc_to_hart(HAL_HARDWARE_THREAD* hart, NeOS::VoidPtr epc);
+} // namespace NeOS
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..788acf0f
--- /dev/null
+++ b/dev/kernel/HALKit/RISCV/HalAP.cc
@@ -0,0 +1,40 @@
+/* -------------------------------------------
+
+	Copyright (C) 2024-2025, Amlal EL Mahrouss, all rights reserved.
+
+------------------------------------------- */
+
+#include <HALKit/RISCV/Processor.h>
+#include <KernelKit/DebugOutput.h>
+#include <HALKit/RISCV/AP.h>
+
+using namespace NeOS;
+
+namespace NeOS::Detail
+{
+	STATIC void mp_hang_fn(void)
+	{
+		while (YES)
+			;
+	}
+} // namespace NeOS::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>(NeOS::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