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Message-Id: <9f98c7492b360ce4ff3b.1214367561@localhost>
Date: Wed, 25 Jun 2008 00:19:21 -0400
From: Jeremy Fitzhardinge <jeremy@...p.org>
To: Ingo Molnar <mingo@...e.hu>
Cc: LKML <linux-kernel@...r.kernel.org>, x86@...nel.org,
xen-devel <xen-devel@...ts.xensource.com>,
Stephen Tweedie <sct@...hat.com>,
Eduardo Habkost <ehabkost@...hat.com>,
Mark McLoughlin <markmc@...hat.com>, x86@...nel.org
Subject: [PATCH 25 of 36] x86_64: PSE no longer a hard requirement
Because Xen doesn't support PSE mappings in guests, all code which
assumed the presence of PSE has been changed to fall back to smaller
mappings if necessary. As a result, PSE is optional rather than
required (though still used whereever possible).
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@...rix.com>
---
include/asm-x86/required-features.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/asm-x86/required-features.h b/include/asm-x86/required-features.h
--- a/include/asm-x86/required-features.h
+++ b/include/asm-x86/required-features.h
@@ -42,7 +42,7 @@
#endif
#ifdef CONFIG_X86_64
-#define NEED_PSE (1<<(X86_FEATURE_PSE & 31))
+#define NEED_PSE 0
#define NEED_MSR (1<<(X86_FEATURE_MSR & 31))
#define NEED_PGE (1<<(X86_FEATURE_PGE & 31))
#define NEED_FXSR (1<<(X86_FEATURE_FXSR & 31))
--
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