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authorAlexander Graf <agraf@suse.de>2014-04-22 14:41:06 +0400
committerAlexander Graf <agraf@suse.de>2014-05-30 16:26:22 +0400
commitf8f6eb0d189cf2724af5ebc8cad460c78fb1994e (patch)
tree6b8f2415c4cf050a668e3e7d4de9d8546c5955be /arch/powerpc/kvm/book3s_emulate.c
parentf24bc1ed45c13805c19f58cc4289b1be7efee19b (diff)
downloadlinux-f8f6eb0d189cf2724af5ebc8cad460c78fb1994e.tar.xz
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>
Diffstat (limited to 'arch/powerpc/kvm/book3s_emulate.c')
-rw-r--r--arch/powerpc/kvm/book3s_emulate.c14
1 files changed, 14 insertions, 0 deletions
diff --git a/arch/powerpc/kvm/book3s_emulate.c b/arch/powerpc/kvm/book3s_emulate.c
index 45d0a805c3ca..52448ef499cb 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: