Add Kernel object

- Implement halt()
- Call the system kernel halt() method at the end of kmain()

src/Kernel.cc

@@ -0,0 +1,54 @@
+/* Kernel.cc
+ * vim: set tw=80:
+ * Eryn Wells <eryn@erynwells.me>
+ */
+/**
+ * Kernel object. This is the highest level object in the system.
+ */
+
+#include "Kernel.hh"
+#include "Interrupts.hh"
+
+namespace {
+
+static kernel::Kernel sKernel;
+    
+} /* anonymous namespace */
+
+namespace kernel {
+
+/*
+ * Static
+ */
+
+Kernel*
+Kernel::systemKernel()
+{
+    return &sKernel;
+}
+
+/*
+ * Public
+ */
+
+void
+Kernel::panic(const char* msg,
+              ...)
+{
+
+}
+
+/*
+ * Private
+ */
+
+void
+Kernel::halt()
+{
+    x86::InterruptHandler::systemInterruptHandler().disableInterrupts();
+    for (;;) {
+        asm("hlt");
+    }
+}
+
+} /* namespace kernel */