Create a memory::paging module with a Page struct

src/memory/mod.rs

@@ -1,6 +1,7 @@
 pub use self::area_frame_allocator::AreaFrameAllocator;
 
 mod area_frame_allocator;
+mod paging;
 
 pub const PAGE_SIZE: usize = 4096;
 

src/memory/paging/mod.rs

@@ -0,0 +1,10 @@
+use memory::PAGE_SIZE;
+
+const ENTRY_COUNT: usize = 512;
+
+pub type PhysicalAddress = usize;
+pub type VirtualAddress = usize;
+
+pub struct Page {
+   number: usize,
+}