[U-Boot] [PATCH 12/48] x86: Tidy up the 64-bit calling code

[Bin Meng]

On Wed, Jul 22, 2015 at 11:49 PM, Simon Glass <sjg at chromium.org> wrote:
> The GDT works but technically the length is incorrect. Fix this and add a
> comment.
>
> Signed-off-by: Simon Glass <sjg at chromium.org>
> ---
>
>  arch/x86/cpu/call64.S | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/arch/x86/cpu/call64.S b/arch/x86/cpu/call64.S
> index 74dd5a8..08dc473 100644
> --- a/arch/x86/cpu/call64.S
> +++ b/arch/x86/cpu/call64.S
> @@ -82,8 +82,8 @@ lret_target:
>
>         .data
>  gdt:
> -       .word   gdt_end - gdt
> -       .long   gdt
> +       .word   gdt_end - gdt - 1
> +       .long   gdt                     /* Fixed up by code above */
>         .word   0
>         .quad   0x0000000000000000      /* NULL descriptor */
>         .quad   0x00af9a000000ffff      /* __KERNEL_CS */
> --

Reviewed-by: Bin Meng <bmeng.cn at gmail.com>