From: Simon Glass <sjg@chromium.org>
Date: Fri, 31 Jul 2015 15:31:30 +0000 (-0600)
Subject: x86: Tidy up the 64-bit calling code
X-Git-Tag: v2015.10-rc2~410^2~46
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=0bc74ab3e694643cb070ed055964fa2a73d300af;p=oweals%2Fu-boot.git

x86: Tidy up the 64-bit calling code

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>
---

diff --git a/arch/x86/cpu/call64.S b/arch/x86/cpu/call64.S
index 74dd5a89dc..08dc473d6a 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 */