linux-kernel - [PATCH] [14/22] x86_64: Modify discover

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Message-Id: <20070428175901.747B3151CA@wotan.suse.de>
Date:	Sat, 28 Apr 2007 19:59:01 +0200 (CEST)
From:	Andi Kleen <ak@...e.de>
To:	Vivek Goyal <vgoyal@...ibm.com>, linux-kernel@...r.kernel.org,
	patches@...-64.org
Subject: [PATCH] [14/22] x86_64: Modify discover_ebda to use virtual addresses


From: Vivek Goyal <vgoyal@...ibm.com>


Signed-off-by: Eric W. Biederman <ebiederm@...ssion.com>
Signed-off-by: Vivek Goyal <vgoyal@...ibm.com>
Signed-off-by: Andi Kleen <ak@...e.de>

---

 arch/x86_64/kernel/setup.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

Index: linux/arch/x86_64/kernel/setup.c
===================================================================
--- linux.orig/arch/x86_64/kernel/setup.c
+++ linux/arch/x86_64/kernel/setup.c
@@ -205,10 +205,10 @@ static void discover_ebda(void)
 	 * there is a real-mode segmented pointer pointing to the 
 	 * 4K EBDA area at 0x40E
 	 */
-	ebda_addr = *(unsigned short *)EBDA_ADDR_POINTER;
+	ebda_addr = *(unsigned short *)__va(EBDA_ADDR_POINTER);
 	ebda_addr <<= 4;
 
-	ebda_size = *(unsigned short *)(unsigned long)ebda_addr;
+	ebda_size = *(unsigned short *)__va(ebda_addr);
 
 	/* Round EBDA up to pages */
 	if (ebda_size == 0)
-
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