1 files changed, 7 insertions, 3 deletions

diff --git a/arch/x86/kernel/reboot_32.S b/arch/x86/kernel/reboot_32.S
index f242356a096e..29092b38d816 100644
--- a/arch/x86/kernel/reboot_32.S
+++ b/arch/x86/kernel/reboot_32.S
@@ -23,10 +23,14 @@ r_base = .
 1:      popl    %ebx
         subl    $1b, %ebx
 
+        /* Compute the equivalent real-mode segment */
+        movl    %ebx, %ecx
+        shrl    $4, %ecx
+        
         /* Patch post-real-mode segment jump */
-        movw    dispatch_table(%ebx,%ecx,2),%cx
-        movw    %cx, 101f(%ebx)
-        movw    %ax, 102f(%ebx)
+        movw    dispatch_table(%ebx,%eax,2),%ax
+        movw    %ax, 101f(%ebx)
+        movw    %cx, 102f(%ebx)
 
         /* Set up the IDT for real mode. */
         lidtl   machine_real_restart_idt(%ebx)