From 934822e48a7c5a3e65ed74261ce5ab4315595f64 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Matteo=20Gm=C3=BCr?= <matteo.gmuer1@ost.ch>
Date: Wed, 16 Oct 2024 13:33:23 +0000
Subject: Fix compilation issues with assigning values to page_map_variable
 address

---
 arch/x86_64/src/boot/boot.s | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

(limited to 'arch/x86_64/src/boot/boot.s')

diff --git a/arch/x86_64/src/boot/boot.s b/arch/x86_64/src/boot/boot.s
index e3d9c37..2aa30c6 100644
--- a/arch/x86_64/src/boot/boot.s
+++ b/arch/x86_64/src/boot/boot.s
@@ -266,9 +266,8 @@ enable_paging:
 
     /* Map the P4 table recursively */
     mov $page_map_level_4, %eax
-    or 0b11, %eax
-    // TODO: WHY THIS THROW ERROR?
-    //mov %eax, [$page_map_level_4 + 511 * 8]
+    or 0b11, %eax /* Write present + writable flags into eax register */
+    mov %eax, (page_map_level_4 + 511 * 8)
 
     /* Enable Physical Address Extension */
     mov %cr4, %eax
-- 
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