diff --git a/[refs] b/[refs]
index 081bb91d5012..4381542b9669 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 491dd5b8a4926393308172da80c73faf242a4057
+refs/heads/master: 50c871edf59b4585fd2c17acfe4e7cd3752418b7
diff --git a/trunk/arch/powerpc/kvm/booke_emulate.c b/trunk/arch/powerpc/kvm/booke_emulate.c
index cc99a0b3d202..514790f41aba 100644
--- a/trunk/arch/powerpc/kvm/booke_emulate.c
+++ b/trunk/arch/powerpc/kvm/booke_emulate.c
@@ -237,6 +237,9 @@ int kvmppc_booke_emulate_mtspr(struct kvm_vcpu *vcpu, int sprn, ulong spr_val)
 	case SPRN_IVOR15:
 		vcpu->arch.ivor[BOOKE_IRQPRIO_DEBUG] = spr_val;
 		break;
+	case SPRN_MCSR:
+		vcpu->arch.mcsr &= ~spr_val;
+		break;
 
 	default:
 		emulated = EMULATE_FAIL;
@@ -329,6 +332,9 @@ int kvmppc_booke_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn, ulong *spr_val)
 	case SPRN_IVOR15:
 		*spr_val = vcpu->arch.ivor[BOOKE_IRQPRIO_DEBUG];
 		break;
+	case SPRN_MCSR:
+		*spr_val = vcpu->arch.mcsr;
+		break;
 
 	default:
 		emulated = EMULATE_FAIL;