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Commit f8f6eb0d authored by Alexander Graf's avatar Alexander Graf
Browse files

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: default avatarAlexander Graf <agraf@suse.de>
parent f24bc1ed

arch/powerpc/kvm/book3s_emulate.c

+14 −0
Original line number Diff line number Diff line
@@ -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: