Prepare for higher half

2016-09-09 18:31:48 -06:00
parent d2cc6a5ee4
commit 933af613a1
1 changed files with 2 additions and 1 deletions
@@ -58,8 +58,9 @@ startup_arch:
    rep stosd

    xor edi, edi
-    ;Link first PML4 to PDP
+    ;Link first PML4 and third to last PML4 to PDP
    mov DWORD [es:edi], 0x71000 | 1 << 1 | 1
+    mov DWORD [es:edi + 509*8], 0x71000 | 1 << 1 | 1
    add edi, 0x1000
    ;Link last PML4 to PML4
    mov DWORD [es:edi - 8], 0x70000 | 1 << 1 | 1