diff options
Diffstat (limited to 'arch/x86_64/boot/boot.asm')
| -rw-r--r-- | arch/x86_64/boot/boot.asm | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/x86_64/boot/boot.asm b/arch/x86_64/boot/boot.asm index 3f85423..c229c19 100644 --- a/arch/x86_64/boot/boot.asm +++ b/arch/x86_64/boot/boot.asm @@ -94,6 +94,10 @@ error: hlt set_up_page_tables: + ; map P4 table recursively + mov eax, p4_table + or eax, 0b11 ; present + writable + mov [p4_table + 511 * 8], eax ; map first P4 entry to P3 table mov eax, p3_table or eax, 0b11 ; present + writable |