MHR-23: Starting to implement SMP for AMD64.

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

12 files changed, 113 insertions, 50 deletions

diff --git a/Kernel/HALKit/64x0/ReadMe.md b/Kernel/HALKit/64x0/ReadMe.md
new file mode 100644
index 00000000..6744f602
--- /dev/null
+++ b/Kernel/HALKit/64x0/ReadMe.md
@@ -0,0 +1,4 @@
+64x0 Hardware Abstraction Layer
+
+- Supported CPU: SoftwareLabs 64x0
+- Supported Firmware: CoreBoot
\ No newline at end of file
diff --git a/Kernel/HALKit/AMD64/HalACPIFactoryInterface.cxx b/Kernel/HALKit/AMD64/HalACPIFactoryInterface.cxx
index 3609165f..f4c9226e 100644
--- a/Kernel/HALKit/AMD64/HalACPIFactoryInterface.cxx
+++ b/Kernel/HALKit/AMD64/HalACPIFactoryInterface.cxx
@@ -75,7 +75,7 @@ namespace NewOS
 
 		SDT* xsdt = (SDT*)(rsdPtr->XsdtAddress >> (rsdPtr->XsdtAddress & 0xFFF));
 
-		SizeT num = xsdt->Length + sizeof(SDT) / 8;
+		SizeT num = (xsdt->Length + sizeof(SDT)) / 8;
 
 		this->fEntries = num;
 
@@ -83,10 +83,11 @@ namespace NewOS
 		kcout << "ACPI: Address of XSDT: " << hex_number((UIntPtr)xsdt) << endl;
 
 		constexpr short ACPI_SIGNATURE_LENGTH = 4;
+		SizeT offsetToAdd = 0UL;
 
 		for (Size index = 0; index < num; ++index)
 		{
-			SDT* sdt = (SDT*)*((UInt64*)(UInt64)xsdt + sizeof(SDT) + (index * 8));
+			SDT* sdt = &(xsdt[index]) + offsetToAdd;
 
 			for (int signature_index = 0; signature_index < 4; signature_index++)
 			{
@@ -94,11 +95,13 @@ namespace NewOS
 					break;
 
 				if (signature_index == 3)
-					return ErrorOr<voidPtr>(reinterpret_cast<voidPtr>((SDT*)sdt));
+					return ErrorOr<voidPtr>(reinterpret_cast<voidPtr>(sdt));
 			}
+
+			offsetToAdd = sdt->Length;
 		}
 
-		return ErrorOr<voidPtr>{-1};
+		return ErrorOr<voidPtr>{nullptr};
 	}
 
 	/***
diff --git a/Kernel/HALKit/AMD64/HalCoreMultiProcessingAMD64.cpp b/Kernel/HALKit/AMD64/HalCoreMultiProcessingAMD64.cpp
index 2129d790..ec6d47da 100644
--- a/Kernel/HALKit/AMD64/HalCoreMultiProcessingAMD64.cpp
+++ b/Kernel/HALKit/AMD64/HalCoreMultiProcessingAMD64.cpp
@@ -23,12 +23,12 @@ namespace NewOS::HAL
 	constexpr Int32 kThreadBoot	  = 4;
 
 	/*
- *
- * this is used to store info about the current running thread
- * we use this struct to determine if we can use it, or mark it as used or on
- * sleep.
- *
- */
+    *
+    * this is used to store info about the current running thread
+    * we use this struct to determine if we can use it, or mark it as used or on
+    * sleep.
+    *
+    */
 
 	struct ProcessorInfoAMD64 final
 	{
@@ -51,12 +51,12 @@ namespace NewOS::HAL
 	{
 		struct MadtAddress final
 		{
+			UInt32 fAddress;
 			UInt32 fFlags; // 1 = Dual Legacy PICs installed
-			UInt32 fPhysicalAddress;
 
 			Char fType;
 			Char fRecLen; // record length
-		} Madt[];
+		} fMadt[];
 	};
 
 	struct MadtProcessorLocalApic final
@@ -104,20 +104,23 @@ namespace NewOS::HAL
 
 	void hal_system_get_cores(voidPtr rsdPtr)
 	{
-		kcout << "New OS: Constructing ACPIFactoryInterface...\r";
-
 		auto acpi = ACPIFactoryInterface(rsdPtr);
 		kApicMadt = acpi.Find(kApicSignature).Leak().Leak();
 
 		if (kApicMadt)
 		{
-			kcout << "New OS: Successfuly fetched the MADT!\r";
+			kcout << "New OS: Successfuly fetched the cores!\r";
 			kApicInfoBlock = (MadtType*)kApicMadt;
+
+            kcout << "New OS: Revision: ";
+            kcout.HexNumber(kApicInfoBlock->Revision).EndLine();
+
+            ke_stop(RUNTIME_CHECK_BOOTSTRAP);
 		}
-		else
-		{
-			MUST_PASS(false);
-		}
+        else
+        {
+            ke_stop(RUNTIME_CHECK_BOOTSTRAP);
+        }
 	}
 } // namespace NewOS::HAL
 
diff --git a/Kernel/HALKit/AMD64/HalHardwareMP.cpp b/Kernel/HALKit/AMD64/HalHardwareMP.cpp
index 2ebf45fd..83e99ef8 100644
--- a/Kernel/HALKit/AMD64/HalHardwareMP.cpp
+++ b/Kernel/HALKit/AMD64/HalHardwareMP.cpp
@@ -16,7 +16,7 @@ namespace NewOS
 	{
 		HAL::rt_cli();
 
-		stack->Rcx = 0;
+        
 
 		HAL::rt_sti();
 	}
@@ -27,7 +27,7 @@ namespace NewOS
 	{
 		HAL::rt_cli();
 
-		stack->Rcx = 1;
+		
 
 		HAL::rt_sti();
 	}
diff --git a/Kernel/HALKit/AMD64/HalInterruptAPI.asm b/Kernel/HALKit/AMD64/HalInterruptAPI.asm
index e4063388..875a1abc 100644
--- a/Kernel/HALKit/AMD64/HalInterruptAPI.asm
+++ b/Kernel/HALKit/AMD64/HalInterruptAPI.asm
@@ -14,16 +14,16 @@
 %define kInterruptId 0x21
 
 %macro IntExp 1
-global __HCR_INT_%1 
-__HCR_INT_%1:
+global __NEW_INT_%1 
+__NEW_INT_%1:
     cld
 
     iretq
 %endmacro
 
 %macro IntNormal 1
-global __HCR_INT_%1 
-__HCR_INT_%1:
+global __NEW_INT_%1 
+__NEW_INT_%1:
     cld
 
     iretq
@@ -54,7 +54,7 @@ IntNormal 4
 IntNormal 5
 
 ;; Invalid opcode interrupt
-__HCR_INT_6:
+__NEW_INT_6:
     cli
 
     push rax
@@ -75,7 +75,7 @@ IntExp   11
 
 IntExp 12
 
-__HCR_INT_13:
+__NEW_INT_13:
     cli
 
     push rax
@@ -88,7 +88,7 @@ __HCR_INT_13:
     sti
     iretq
 
-__HCR_INT_14:
+__NEW_INT_14:
     cli
 
     push rax
@@ -135,7 +135,7 @@ IntNormal 41
 IntNormal 42
 IntNormal 43
 
-__HCR_INT_44:
+__NEW_INT_44:
     cli
 
     ;; TODO: CoreEvents dispatch routine.
@@ -153,7 +153,7 @@ IntNormal 47
 IntNormal 48
 IntNormal 49
 
-__HCR_INT_50:
+__NEW_INT_50:
     cli
 
     ;; todo handle system calls.
@@ -217,6 +217,6 @@ section .data
 kInterruptVectorTable:
     %assign i 0
     %rep 256
-        dq __HCR_INT_%+i
+        dq __NEW_INT_%+i
     %assign i i+1
     %endrep
diff --git a/Kernel/HALKit/AMD64/ReadMe.md b/Kernel/HALKit/AMD64/ReadMe.md
new file mode 100644
index 00000000..0be48c77
--- /dev/null
+++ b/Kernel/HALKit/AMD64/ReadMe.md
@@ -0,0 +1,4 @@
+AMD64 Hardware Abstraction Layer
+
+- Supported CPU: AMD64 CPU
+- Supported Firmware: EDK 2
\ No newline at end of file
diff --git a/Kernel/HALKit/ARM64/ReadMe.md b/Kernel/HALKit/ARM64/ReadMe.md
new file mode 100644
index 00000000..89679e18
--- /dev/null
+++ b/Kernel/HALKit/ARM64/ReadMe.md
@@ -0,0 +1,4 @@
+ARM64 Hardware Abstraction Layer
+
+- Supported CPU: Qualcomm CPU
+- Supported Firmware: EDK 2
\ No newline at end of file
diff --git a/Kernel/HALKit/POWER/ReadMe.md b/Kernel/HALKit/POWER/ReadMe.md
new file mode 100644
index 00000000..a9751581
--- /dev/null
+++ b/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/Kernel/HALKit/RISCV/ReadMe.md b/Kernel/HALKit/RISCV/ReadMe.md
new file mode 100644
index 00000000..b099aa31
--- /dev/null
+++ b/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/Kernel/KernelKit/DebugOutput.hpp b/Kernel/KernelKit/DebugOutput.hpp
index 7fde69aa..656fe7a9 100644
--- a/Kernel/KernelKit/DebugOutput.hpp
+++ b/Kernel/KernelKit/DebugOutput.hpp
@@ -15,7 +15,7 @@
 
 #define kDebugUnboundPort 0x0FEED
 
-#define kDebugMag0 'H'
+#define kDebugMag0 'N'
 #define kDebugMag1 'D'
 #define kDebugMag2 'B'
 #define kDebugMag3 'G'
@@ -27,6 +27,12 @@
 
 namespace NewOS
 {
+    class TerminalDevice;
+
+    inline TerminalDevice& end_line();
+    inline TerminalDevice& number(const Long& x);
+    inline TerminalDevice& hex_number(const Long& x);
+
 	// @brief Emulates a VT100 terminal.
 	class TerminalDevice final : public DeviceInterface<const Char*>
 	{
@@ -34,10 +40,30 @@ namespace NewOS
 		TerminalDevice(void (*print)(const Char*), void (*get)(const Char*))
 			: DeviceInterface<const Char*>(print, get)
 		{
+
 		}
 
 		virtual ~TerminalDevice()
 		{
+
+		}
+
+		TerminalDevice& Number(const Long Data) noexcept
+		{
+            number(Data);
+			return *this;
+		}
+
+		TerminalDevice& HexNumber(const Long Data) noexcept
+		{
+            number(Data);
+			return *this;
+		}
+
+        TerminalDevice& EndLine() noexcept
+		{
+            end_line();
+			return *this;
 		}
 
 		/// @brief returns device name (terminal name)
diff --git a/Kernel/Source/AppMain.cxx b/Kernel/Source/AppMain.cxx
index b91d6082..4f5de11f 100644
--- a/Kernel/Source/AppMain.cxx
+++ b/Kernel/Source/AppMain.cxx
@@ -22,6 +22,7 @@
 #include <NewKit/KernelCheck.hpp>
 #include <NewKit/String.hpp>
 #include <NewKit/Utils.hpp>
+#include <KernelKit/CodeManager.hpp>
 
 namespace Detail
 {
@@ -177,6 +178,12 @@ namespace Detail
 			return fNewFS;
 		}
 	};
+
+	STATIC NewOS::Void AppWatchdogThread(NewOS::Void)
+	{
+		NewOS::kcout << "SystemSanityThread: Exiting process...";
+		NewOS::ProcessScheduler::Shared().Leak().GetCurrent().Leak().Exit(0);
+	}
 } // namespace Detail
 
 /// @file Main microkernel entrypoint.
@@ -186,6 +193,9 @@ EXTERN_C NewOS::Void AppMain(NewOS::Void)
 	/// Now run kernel loop, until no process are running.
 	Detail::FilesystemWizard wizard; // automatic.
 
+	auto cWatchdogThreadName = "SystemSanityThread";
+	NewOS::execute_from_image((NewOS::MainKind)Detail::AppWatchdogThread, cWatchdogThreadName);
+
 	while (NewOS::ProcessScheduler::Shared().Leak().Run() > 0)
 	{
 		;
diff --git a/Kernel/Source/CodeManager.cxx b/Kernel/Source/CodeManager.cxx
index 39917163..001795ce 100644
--- a/Kernel/Source/CodeManager.cxx
+++ b/Kernel/Source/CodeManager.cxx
@@ -8,22 +8,23 @@
 #include <KernelKit/CodeManager.hpp>
 #include <KernelKit/ProcessScheduler.hpp>
 
-using namespace NewOS;
-
-/// @brief Executes a new process from a function. kernel code only.
-/// @note This sets up a new stack, anything on the main function that calls the kernel will not be accessible.
-/// @param main the start of the process.
-/// @return if the process was started or not.
-bool execute_from_image(MainKind main, const char* processName) noexcept
+namespace NewOS
 {
-	if (!main)
-		return false;
-
-	ProcessHeader proc((VoidPtr)main);
-	proc.Kind = ProcessHeader::kDriverKind;
-	rt_copy_memory((VoidPtr)processName, proc.Name, rt_string_len(proc.Name));
-
-	Ref<ProcessHeader> refProc = proc;
-
-	return ProcessScheduler::Shared().Leak().Add(refProc);
-}
\ No newline at end of file
+	/// @brief Executes a new process from a function. kernel code only.
+	/// @note This sets up a new stack, anything on the main function that calls the kernel will not be accessible.
+	/// @param main the start of the process.
+	/// @return if the process was started or not.
+	bool execute_from_image(MainKind main, const char* processName) noexcept
+	{
+		if (!main)
+			return false;
+
+		ProcessHeader proc((VoidPtr)main);
+		proc.Kind = ProcessHeader::kDriverKind;
+		rt_copy_memory((VoidPtr)processName, proc.Name, rt_string_len(proc.Name));
+
+		Ref<ProcessHeader> refProc = proc;
+
+		return ProcessScheduler::Shared().Leak().Add(refProc);
+	}
+} // namespace NewOS
\ No newline at end of file