linux-kernel - [PATCH 13/33] x86_64: Remove assumptions about the kernel start address from e820/bad

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Date:	Tue,  1 Aug 2006 05:03:28 -0600
From:	"Eric W. Biederman" <ebiederm@...ssion.com>
To:	<fastboot@...l.org>
Cc:	<linux-kernel@...r.kernel.org>, Horms <horms@...ge.net.au>,
	Jan Kratochvil <lace@...kratochvil.net>,
	"H. Peter Anvin" <hpa@...or.com>,
	Magnus Damm <magnus.damm@...il.com>,
	Vivek Goyal <vgoyal@...ibm.com>, Linda Wang <lwang@...hat.com>,
	"Eric W. Biederman" <ebiederm@...ssion.com>
Subject: [PATCH 13/33] x86_64: Remove assumptions about the kernel start address from e820/bad_addr()

Signed-off-by: Eric W. Biederman <ebiederm@...ssion.com>
---
 arch/x86_64/kernel/e820.c |    9 +++++++--
 1 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/arch/x86_64/kernel/e820.c b/arch/x86_64/kernel/e820.c
index 61f029f..56dd525 100644
--- a/arch/x86_64/kernel/e820.c
+++ b/arch/x86_64/kernel/e820.c
@@ -69,9 +69,14 @@ #ifdef CONFIG_BLK_DEV_INITRD
 		return 1;
 	} 
 #endif
-	/* kernel code + 640k memory hole (later should not be needed, but 
+	/* 640k memory hole (later should not be needed, but
 	   be paranoid for now) */
-	if (last >= 640*1024 && addr < __pa_symbol(&_end)) { 
+	if (last >= 640*1024 && addr < HIGH_MEMORY) {
+		*addrp = HIGH_MEMORY;
+	}
+
+	/* kernel code */
+	if (last >= __pa_symbol(&_text) && addr < __pa_symbol(&_end)) {
 		*addrp = __pa_symbol(&_end);
 		return 1;
 	}
-- 
1.4.2.rc2.g5209e

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