linux-kernel - [PATCH 7/19] introduce ldt

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Message-Id: <11969578383955-git-send-email-gcosta@redhat.com>
Date:	Thu,  6 Dec 2007 14:16:28 -0200
From:	Glauber de Oliveira Costa <gcosta@...hat.com>
To:	linux-kernel@...r.kernel.org
Cc:	akpm@...ux-foundation.org, glommer@...il.com, tglx@...utronix.de,
	mingo@...e.hu, ehabkost@...hat.com, jeremy@...p.org,
	avi@...ranet.com, anthony@...emonkey.ws,
	virtualization@...ts.linux-foundation.org, rusty@...tcorp.com.au,
	ak@...e.de, chrisw@...s-sol.org, rostedt@...dmis.org,
	hpa@...or.com, zach@...are.com,
	Glauber de Oliveira Costa <gcosta@...hat.com>
Subject: [PATCH 7/19] introduce ldt_desc type.

this patch introduces ldt_desc type to account for the differences
in the ldt descriptor in x86_64 and i386

Signed-off-by: Glauber de Oliveira Costa <gcosta@...hat.com>
---
 include/asm-x86/desc_64.h   |    2 +-
 include/asm-x86/desc_defs.h |    4 +++-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/include/asm-x86/desc_64.h b/include/asm-x86/desc_64.h
index ffc6c06..8fe1b4c 100644
--- a/include/asm-x86/desc_64.h
+++ b/include/asm-x86/desc_64.h
@@ -113,7 +113,7 @@ static inline void store_idt(struct desc_ptr *dtr)
 static inline void set_tssldt_descriptor(void *ptr, unsigned long tss,
 					 unsigned type, unsigned size)
 {
-	struct ldttss_desc d;
+	struct ldttss_desc64 d;
 
 	memset(&d, 0, sizeof(d));
 	d.limit0 = size & 0xFFFF;
diff --git a/include/asm-x86/desc_defs.h b/include/asm-x86/desc_defs.h
index e502549..3a562d1 100644
--- a/include/asm-x86/desc_defs.h
+++ b/include/asm-x86/desc_defs.h
@@ -61,7 +61,7 @@ enum {
 };
 
 // LDT or TSS descriptor in the GDT. 16 bytes.
-struct ldttss_desc {
+struct ldttss_desc64 {
 	u16 limit0;
 	u16 base0;
 	unsigned base1 : 8, type : 5, dpl : 2, p : 1;
@@ -72,8 +72,10 @@ struct ldttss_desc {
 
 #ifdef CONFIG_X86_64
 typedef struct gate_struct64 gate_desc;
+typedef struct ldttss_desc64 ldt_desc;
 #else
 typedef struct desc_struct gate_desc;
+typedef struct desc_struct ldt_desc;
 #endif
 
 struct desc_ptr {
-- 
1.4.4.2

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