From 8d500d6bc7fa56c547a74a442d35b473c24dc03e Mon Sep 17 00:00:00 2001
From: "Chloe M." <chloe@aptel.org>
Date: Thu, 20 Aug 2026 12:11:56 +0000
Subject: boot/amd64: mbr: Normalize %DS for stage 2

Signed-off-by: Chloe M. <chloe@aptel.org>
---
 boot/arch/amd64/mbr/mbr.S | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/boot/arch/amd64/mbr/mbr.S b/boot/arch/amd64/mbr/mbr.S
index 5d876c2..3b56202 100644
--- a/boot/arch/amd64/mbr/mbr.S
+++ b/boot/arch/amd64/mbr/mbr.S
@@ -63,6 +63,12 @@ reloc:
     add $40, %si
     movw (%si), %ax
 
+    /* Set DS for stage 2 */
+    mov $BOOT_SEG<<4, %bx
+    or %ax, %bx
+    shr $4, %bx
+    mov %bx, %ds
+
     /* Jump to stage 2 */
     pushw $BOOT_SEG
     pushw %ax
-- 
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