KVM: MTRR: do not split 64 bits MSR content

Variable MTRR MSRs are 64 bits which are directly accessed with full length,
no reason to split them to two 32 bits

Signed-off-by: Xiao Guangrong <guangrong.xiao@linux.intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index 8d43006..f735548 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -342,8 +342,13 @@
 	KVM_DEBUGREG_RELOAD = 4,
 };
 
+struct kvm_mtrr_range {
+	u64 base;
+	u64 mask;
+};
+
 struct kvm_mtrr {
-	struct mtrr_var_range var_ranges[KVM_NR_VAR_MTRR];
+	struct kvm_mtrr_range var_ranges[KVM_NR_VAR_MTRR];
 	mtrr_type fixed_ranges[KVM_NR_FIXED_MTRR_REGION];
 	u64 deftype;
 };