From b7005b766f86415eaf11962c849f79ce3125d46b Mon Sep 17 00:00:00 2001
From: Philipp Oppermann <dev@phil-opp.com>
Date: Fri, 25 Jan 2019 14:29:04 +0100
Subject: [PATCH] Print first 10 entries of level 4 page table

---
 src/main.rs | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/src/main.rs b/src/main.rs
index 5519385e..71e6973c 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -9,10 +9,12 @@ use core::panic::PanicInfo;
 #[no_mangle]
 pub extern "C" fn _start() -> ! {
     use blog_os::interrupts::PICS;
-    use x86_64::registers::control::Cr3;
 
-    let (level_4_page_table, _) = Cr3::read();
-    println!("Level 4 page table at: {:?}", level_4_page_table.start_address());
+    let level_4_table_pointer = 0xffff_ffff_ffff_f000 as *const u64;
+    for i in 0..10 {
+        let entry = unsafe { *level_4_table_pointer.offset(i) };
+        println!("Entry {}: {:#x}", i, entry);
+    }
 
     println!("Hello World{}", "!");