From f8f6eb0d189cf2724af5ebc8cad460c78fb1994e Mon Sep 17 00:00:00 2001 From: Alexander Graf Date: Tue, 22 Apr 2014 12:41:06 +0200 Subject: [PATCH] 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 --- 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 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: -- 2.20.1