KVM: PPC: Book3S PR: Ignore PMU SPRs

When we expose a POWER8 CPU into the guest, it will start accessing PMU SPRs
that we don't emulate. Just ignore accesses to them.

Signed-off-by: Alexander Graf <agraf@suse.de>
diff --git a/arch/powerpc/kvm/book3s_emulate.c b/arch/powerpc/kvm/book3s_emulate.c
index 45d0a80..52448ef 100644
--- a/arch/powerpc/kvm/book3s_emulate.c
+++ b/arch/powerpc/kvm/book3s_emulate.c
@@ -455,6 +455,13 @@
 	case SPRN_WPAR_GEKKO:
 	case SPRN_MSSSR0:
 	case SPRN_DABR:
+#ifdef CONFIG_PPC_BOOK3S_64
+	case SPRN_MMCRS:
+	case SPRN_MMCRA:
+	case SPRN_MMCR0:
+	case SPRN_MMCR1:
+	case SPRN_MMCR2:
+#endif
 		break;
 unprivileged:
 	default:
@@ -553,6 +560,13 @@
 	case SPRN_WPAR_GEKKO:
 	case SPRN_MSSSR0:
 	case SPRN_DABR:
+#ifdef CONFIG_PPC_BOOK3S_64
+	case SPRN_MMCRS:
+	case SPRN_MMCRA:
+	case SPRN_MMCR0:
+	case SPRN_MMCR1:
+	case SPRN_MMCR2:
+#endif
 		*spr_val = 0;
 		break;
 	default: