linux-kernel - [PATCH] kvm: better readability of efer_reserved

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Date:	Mon, 21 Feb 2011 11:51:35 +0800
From:	Lai Jiangshan <laijs@...fujitsu.com>
To:	LKML <linux-kernel@...r.kernel.org>,
	"kvm@...r.kernel.org" <kvm@...r.kernel.org>,
	Avi Kivity <avi@...hat.com>,
	Marcelo Tosatti <mtosatti@...hat.com>
Subject: [PATCH] kvm: better readability of efer_reserved_bits


use EFER_SCE, EFER_LME and EFER_LMA instead of magic numbers.

Signed-off-by: Lai Jiangshan <laijs@...fujitsu.com>
---
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index bcc0efc..9d1d3f2 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -81,9 +81,10 @@
  * - enable LME and LMA per default on 64 bit KVM
  */
 #ifdef CONFIG_X86_64
-static u64 __read_mostly efer_reserved_bits = 0xfffffffffffffafeULL;
+static
+u64 __read_mostly efer_reserved_bits = ~((u64)(EFER_SCE | EFER_LME | EFER_LMA));
 #else
-static u64 __read_mostly efer_reserved_bits = 0xfffffffffffffffeULL;
+static u64 __read_mostly efer_reserved_bits = ~((u64)EFER_SCE);
 #endif
 
 #define VM_STAT(x) offsetof(struct kvm, stat.x), KVM_STAT_VM
--
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