---

yaml --- r: 18022 b: refs/heads/master c: 983d5db h: refs/heads/master v: v3
git-mirror · Jan 12, 2006 · 9cfa301 · 9cfa301
1 parent 03e38be
commit 9cfa301
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Showing 2 changed files with 10 additions and 3 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 0d9cb75f2f41788a59bcd3dac30b264a4bebaf2e
+refs/heads/master: 983d5dbdb2b38d024935f560a91cddcf704875f3
diff --git a/trunk/arch/x86_64/kernel/trampoline.S b/trunk/arch/x86_64/kernel/trampoline.S
@@ -42,8 +42,15 @@ r_base = .
 	movl	$0xA5A5A5A5, trampoline_data - r_base
 				# write marker for master knows we're running
 
-	lidt	idt_48 - r_base	# load idt with 0, 0
-	lgdt	gdt_48 - r_base	# load gdt with whatever is appropriate
+	/*
+	 * GDT tables in non default location kernel can be beyond 16MB and
+	 * lgdt will not be able to load the address as in real mode default
+	 * operand size is 16bit. Use lgdtl instead to force operand size
+	 * to 32 bit.
+	 */
+
+	lidtl	idt_48 - r_base	# load idt with 0, 0
+	lgdtl	gdt_48 - r_base	# load gdt with whatever is appropriate
 
 	xor	%ax, %ax
 	inc	%ax		# protected mode (PE) bit