Implement MmpGetPdeAddress() and MmpGetPteAddress() routines for i686 architecture as well as MmpMemoryExtensionEnabled() for checking PAE/LA57 support

xtoskrnl/mm/init.c

@@ -9,6 +9,21 @@
 #include <xtos.h>
 
 
+/**
+ * Performs an early pre-initialization of hardware-related structures.
+ *
+ * @return This routine does not return any value.
+ *
+ * @since XT 1.0
+ */
+XTAPI
+VOID
+MmInitializeHardware(VOID)
+{
+    /* Check for architecture-specific memory extensions enabled by the firmware or boot loader */
+    MmpMemoryExtension = MmpMemoryExtensionEnabled();
+}
+
 /**
  * Performs an early initialization of the XTOS Memory Manager.
  *