[PULL 16/41] KVM: PPC: Book3S PR: Ignore PMU SPRs

Alexander Graf
2014-05-30T12:42:31Z

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>
---
arch/powerpc/kvm/book3s_emulate.c | 14 ++++++++++++++
1 file changed, 14 insertions(+)

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 @@ int kvmppc_core_emulate_mtspr_pr(struct kvm_vcpu *vcpu, int sprn, ulong spr_val)
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 @@ int kvmppc_core_emulate_mfspr_pr(struct kvm_vcpu *vcpu, int sprn, ulong *spr_val
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:
--
1.8.1.4