Reload GDT from c

2018-02-19 10:24:07 +01:00
parent 04f2123499
commit 132645c0e6
4 changed files with 33 additions and 0 deletions
--- a/src/kernel/cpu/registers.S
+++ b/src/kernel/cpu/registers.S
@@ -5,6 +5,20 @@ load_idt:
  lidt [rdi]
  ret

+.global load_gdt
+load_gdt:
+  lgdt [rdi]
+  mov ax, 0x0
+  mov ss, ax
+  mov ds, ax
+  mov es, ax
+  movabs rax, offset .load_gdt
+  pushq 0x8
+  push rax
+  retfq
+.load_gdt:
+  ret
+
 .global read_cr0
 read_cr0:
  mov rax, cr0