From: Alexander Graf <agraf@suse.de>
Date: Fri, 4 Jan 2013 17:02:14 +0000 (+0100)
Subject: KVM: PPC: BookE: Emulate mfspr on EPR
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=37ecb257f68ce4fb7c7048a1123bbcbbe36d9575;p=openwrt%2Fstaging%2Fblogic.git

KVM: PPC: BookE: Emulate mfspr on EPR

The EPR register is potentially valid for PR KVM as well, so we need
to emulate accesses to it. It's only defined for reading, so only
handle the mfspr case.

Signed-off-by: Alexander Graf <agraf@suse.de>
---

diff --git a/arch/powerpc/kvm/booke_emulate.c b/arch/powerpc/kvm/booke_emulate.c
index 4685b8cf2249..27a4b2877c10 100644
--- a/arch/powerpc/kvm/booke_emulate.c
+++ b/arch/powerpc/kvm/booke_emulate.c
@@ -269,6 +269,9 @@ int kvmppc_booke_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn, ulong *spr_val)
 	case SPRN_ESR:
 		*spr_val = vcpu->arch.shared->esr;
 		break;
+	case SPRN_EPR:
+		*spr_val = vcpu->arch.epr;
+		break;
 	case SPRN_CSRR0:
 		*spr_val = vcpu->arch.csrr0;
 		break;