[Xen-devel] [PATCH 12/24] x86-64: remove PGE from must-have feature list

[Jeremy Fitzhardinge <jeremy@xxxxxxxx>]

From: Jeremy Fitzhardinge <jeremy.fitzhardinge@xxxxxxxxxx>

PGE may not be available when running paravirtualized, so test the cpuid
bit before using it.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@xxxxxxxxxx>
---
 arch/x86/include/asm/required-features.h |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/arch/x86/include/asm/required-features.h 
b/arch/x86/include/asm/required-features.h
index d5cd6c5..a4737dd 100644
--- a/arch/x86/include/asm/required-features.h
+++ b/arch/x86/include/asm/required-features.h
@@ -50,7 +50,7 @@
 #ifdef CONFIG_X86_64
 #define NEED_PSE       0
 #define NEED_MSR       (1<<(X86_FEATURE_MSR & 31))
-#define NEED_PGE       (1<<(X86_FEATURE_PGE & 31))
+#define NEED_PGE       0
 #define NEED_FXSR      (1<<(X86_FEATURE_FXSR & 31))
 #define NEED_XMM       (1<<(X86_FEATURE_XMM & 31))
 #define NEED_XMM2      (1<<(X86_FEATURE_XMM2 & 31))
-- 
1.6.0.6


_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel