From 2c5a79c9380f82c3b17fd95b052618050f2cbc1d Mon Sep 17 00:00:00 2001
From: Mihai Caraman <mihai.caraman@freescale.com>
Date: Fri, 25 Apr 2014 23:21:42 +0300
Subject: KVM: PPC: e500mc: Advertise E.PT to support HTW guests

Enable E.PT for vcpus with MMU MAV 2.0 to support Hardware Page Tablewalk
(HTW) in guests.

Signed-off-by: Mihai Caraman <mihai.caraman@freescale.com>
(cherry picked and merged from sdk1.5 commit 815866e615d1452083c7f379391926aa42eddcf0)
Change-Id: Ia73322e2d4eaff2acc62afb6e3b36f27d751dc29
Reviewed-on: http://git.am.freescale.net:8181/11563
Tested-by: Review Code-CDREVIEW <CDREVIEW@freescale.com>
Reviewed-by: Stuart Yoder <stuart.yoder@freescale.com>
Reviewed-by: Jose Rivera <German.Rivera@freescale.com>

diff --git a/arch/powerpc/kvm/e500_mmu.c b/arch/powerpc/kvm/e500_mmu.c
index 4a027cb..efc3d4e 100644
--- a/arch/powerpc/kvm/e500_mmu.c
+++ b/arch/powerpc/kvm/e500_mmu.c
@@ -945,11 +945,7 @@ static int vcpu_mmu_init(struct kvm_vcpu *vcpu,
 		vcpu->arch.tlbps[1] = mfspr(SPRN_TLB1PS);
 
 		vcpu->arch.mmucfg &= ~MMUCFG_LRAT;
-
-		/* Guest mmu emulation currently doesn't handle E.PT */
-		vcpu->arch.eptcfg = 0;
-		vcpu->arch.tlbcfg[0] &= ~TLBnCFG_PT;
-		vcpu->arch.tlbcfg[1] &= ~TLBnCFG_IND;
+		vcpu->arch.eptcfg = mfspr(SPRN_EPTCFG);
 	}
 
 	return 0;
-- 
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