From: Amelia Coutard <eliottulio.coutard@gmail.com>
Date: Sun, 5 Mar 2023 23:45:34 +0000 (+0100)
Subject: Added the global bit to all pages in the higher half
X-Git-Url: https://git.ameliathe1st.gay/?a=commitdiff_plain;h=c9795c95a8cc07e6b2010e91c803cea793975957;p=voyage-au-centre-des-fichiers.git

Added the global bit to all pages in the higher half
---

diff --git a/kernel/src/boot.S b/kernel/src/boot.S
index 737800b..a4b2fb8 100644
--- a/kernel/src/boot.S
+++ b/kernel/src/boot.S
@@ -116,11 +116,11 @@ IO_MAP_END:
 PML4T: .quad PDPT_low - KERNEL_VMA + 3
        .skip 0x1000 - 16
        .quad PDPT_high - KERNEL_VMA + 3
-PDPT_low:  .quad 0x83
+PDPT_low:  .quad 0x183 # G | 1GiB page | R/W | P
            .skip 0x1000 - 8
 PDPT_high: .skip 0x1000 - 16
-           .quad 0x83
-           .quad 0x83 + 1024 * 1024 * 1024
+           .quad 0x183
+           .quad 0x183 + 1024 * 1024 * 1024
 
 .section .bss
 .align 0x1000
@@ -251,7 +251,7 @@ _start:
 	add $8, %rdi
 	loop 1b
 
-	mov $0x83, %rbx
+	mov $0x183, %rbx # G | R/W | P
 	mov $phys_mem_map, %rdi
 	mov $128 * 512, %rcx
 1:	mov %rbx, (%rdi)