From 50f05c9c167e10c9dbd4f46ce89ab2cdb417f81f Mon Sep 17 00:00:00 2001
From: Marcelo Tosatti <mtosatti@redhat.com>
Date: Fri, 19 Mar 2010 20:47:36 -0300
Subject: [PATCH] KVM: x86: disable paravirt mmu reporting

RH-Author: Marcelo Tosatti <mtosatti@redhat.com>
Message-id: <patch-7922-clone-for-rhel5-rhel55>
Patchwork-id: 7976
O-Subject: [PATCH RHEL 5.4.z 5.5] KVM: x86: disable paravirt mmu reporting
Bugzilla: 578579
RH-Acked-by: Juan Quintela <quintela@redhat.com>
RH-Acked-by: Avi Kivity <avi@redhat.com>
RH-Acked-by: Zachary Amsden <zamsden@redhat.com>
RH-Acked-by: Rik van Riel <riel@redhat.com>

commit a68a6a7282373bedba8a2ed751b6384edb983a64
Author: Marcelo Tosatti <mtosatti@redhat.com>
Date:   Thu Oct 1 19:28:39 2009 -0300

KVM: x86: disable paravirt mmu reporting

Disable paravirt MMU capability reporting, so that new (or rebooted)
guests switch to native operation.

Paravirt MMU is a burden to maintain and does not bring significant
advantages compared to shadow anymore.

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
BZ: 575257
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
---
 arch/x86/kvm/x86.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index d4cbf5e..bd28343 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -1098,7 +1098,7 @@ int kvm_dev_ioctl_check_extension(long ext)
 		r = KVM_MEMORY_SLOTS;
 		break;
 	case KVM_CAP_PV_MMU:
-		r = !tdp_enabled;
+		r = 0;
 		break;
 	case KVM_CAP_IOMMU:
 		r = iommu_found();
-- 
1.7.0.3