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[U-Boot,v2,13/47] x86: Tidy up the 64-bit calling code

Message ID 1438356724-6561-14-git-send-email-sjg@chromium.org
State Accepted
Delegated to: Simon Glass
Headers show

Commit Message

Simon Glass July 31, 2015, 3:31 p.m. UTC 
The GDT works but technically the length is incorrect. Fix this and add a
comment.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
---

Changes in v2: None

 arch/x86/cpu/call64.S | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

Comments

Simon Glass Aug. 2, 2015, 11:37 p.m. UTC | #1 
On 31 July 2015 at 09:31, Simon Glass <sjg@chromium.org> wrote:
> The GDT works but technically the length is incorrect. Fix this and add a
> comment.
>
> Signed-off-by: Simon Glass <sjg@chromium.org>
> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
> ---
>
> Changes in v2: None
>
>  arch/x86/cpu/call64.S | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)

Applied to u-boot-x86.
diff mbox

Patch

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 */