diff options
| author | Dennis Kobert <dennis@kobert.dev> | 2019-11-15 19:17:54 +0100 |
|---|---|---|
| committer | Dennis Kobert <dennis@kobert.dev> | 2019-11-15 19:17:54 +0100 |
| commit | 6134ec21326f8312d09b69c6cfee749f85846e53 (patch) | |
| tree | c554fa49a6badf14463952f776f7bb8bbabb3802 | |
| parent | 307571308b115eb737281711c780fa4cd1ed837f (diff) | |
Disable caching for first mem page
| -rw-r--r-- | kernel/src/asm/boot.asm | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/kernel/src/asm/boot.asm b/kernel/src/asm/boot.asm index 9964636..6449d66 100644 --- a/kernel/src/asm/boot.asm +++ b/kernel/src/asm/boot.asm @@ -91,10 +91,13 @@ setup_page_tables: mov eax, p2_table or eax, 0b11 ; present + writable mov [p3_table], eax + + mov eax, 0b10000111 ; huge + no caching + writable + present + mov [p2_table], eax ; map each P2 entry to a huge 2MiB page - mov ecx, 0 ; counter variable - mov eax, 0b10000011 ; huge + writable + present + mov ecx, 8 ; counter variable + mov eax, 0x200000 + 0b10000011 ; huge + writable + present .map_p2_table: cmp eax, 0b10000011 + stack_bottom |