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

Simon Glass sjg at chromium.org
Fri Jul 31 17:31:30 CEST 2015


The GDT works but technically the length is incorrect. Fix this and add a
comment.

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

Changes in v2: None

 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 */
-- 
2.5.0.rc2.392.g76e840b



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