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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>
This commit is contained in:
Alexander Graf 2014-04-22 12:41:06 +02:00
parent f24bc1ed45
commit f8f6eb0d18
1 changed files with 14 additions and 0 deletions
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14
arch/powerpc/kvm/book3s_emulate.c
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@ -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: