Migrate KE subsystem to C++

xtoskrnl/ke/krnlinit.cc

@@ -0,0 +1,76 @@
+/**
+ * PROJECT:         ExectOS
+ * COPYRIGHT:       See COPYING.md in the top level directory
+ * FILE:            xtoskrnl/ke/krnlinit.cc
+ * DESCRIPTION:     XT kernel initialization
+ * DEVELOPERS:      Rafal Kupiec <belliash@codingworkshop.eu.org>
+ */
+
+#include <xtos.hh>
+
+
+/* Use routines from Kernel Library */
+using namespace KE;
+
+/**
+ * This routine starts up the XT kernel. It is called by boot loader.
+ *
+ * @param Parameters
+ *        Supplies a pointer to memory area containing parameters passed to kernel by bootloader.
+ *
+ * @return This routine does not return any value.
+ *
+ * @since XT 1.0
+ */
+XTAPI
+VOID
+KeStartXtSystem(IN PKERNEL_INITIALIZATION_BLOCK Parameters)
+{
+    /* Verify kernel and boot loader compatibility */
+    if(Parameters->BlockSize != sizeof(KERNEL_INITIALIZATION_BLOCK) ||
+       Parameters->BlockVersion != INITIALIZATION_BLOCK_VERSION ||
+       Parameters->ProtocolVersion != BOOT_PROTOCOL_VERSION)
+    {
+        /* Kernel and boot loader version mismatch */
+        Crash::HaltSystem();
+    }
+
+    /* Save the kernel initialization block */
+    BootInformation::SetInitializationBlock(Parameters);
+
+    /* Check if debugging enabled and if boot loader provided routine for debug printing */
+    if(DEBUG && BootInformation::GetDebugPrint())
+    {
+        /* Use loader's provided DbgPrint() routine for early printing to serial console */
+        KdSetPrintRoutine(BootInformation::GetDebugPrint());
+        DebugPrint(L"Initializing ExectOS v%d.%d for %s\n", XTOS_VERSION_MAJOR, XTOS_VERSION_MINOR, _ARCH_NAME);
+    }
+
+    /* Initialize boot CPU */
+    AR::ProcSup::InitializeProcessor(NULL);
+
+    /* Initialize system resources */
+    SystemResources::InitializeResources();
+
+    /* Check if debugging enabled */
+    if(DEBUG)
+    {
+        /* Initialize debug I/O */
+        KdInitializeDebugIoProviders();
+    }
+
+    /* Announce kernel startup */
+    DebugPrint(L"Starting ExectOS v%d.%d for %s (%s-%s-%s-%s / %s %s)\n",
+               XTOS_VERSION_MAJOR, XTOS_VERSION_MINOR, _ARCH_NAME, XTOS_VERSION_DATE,
+               XTOS_VERSION_BUILD, XTOS_VERSION_ARCH, XTOS_VERSION_HASH,
+               XTOS_COMPILER_NAME, XTOS_COMPILER_VERSION);
+
+    /* Architecture specific kernel initialization */
+    KernelInit::InitializeMachine();
+
+    /* Raise to HIGH runlevel */
+    RunLevel::RaiseRunLevel(HIGH_LEVEL);
+
+    /* Switch the boot stack and transfer control to the KepStartKernel() routine */
+    KernelInit::SwitchBootStack();
+}