major restructuring, prepare for smp

code/kernel/mm_virt.c

@@ -14,9 +14,9 @@
 //   Backed on demand from the PMM. No per-process heaps.
 #include <stddef.h>
 #include <string.h>
-#include <mm_virt.h>
-#include <ke_spinlock.h>
-#include <ke_irql.h>
+#include <kernel/mm_virt.h>
+#include <kernel/ke_spinlock.h>
+#include <kernel/ke_irql.h>
 
 // ---------------------------------------------------------------------------
 // Helpers - physical window access