x86: Fix GDT limit in start16.S
GDT limit should be one less than an integral multiple of eight.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
diff --git a/arch/x86/cpu/start16.S b/arch/x86/cpu/start16.S
index 8b9b327..6968fda 100644
--- a/arch/x86/cpu/start16.S
+++ b/arch/x86/cpu/start16.S
@@ -70,7 +70,7 @@
* GDT is setup in a safe location in RAM
*/
gdt_ptr:
- .word 0x20 /* limit (32 bytes = 4 GDT entries) */
+ .word 0x1f /* limit (31 bytes = 4 GDT entries - 1) */
.long BOOT_SEG + gdt /* base */
/* Some CPUs are picky about GDT alignment... */