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| author | Alexander Graf <agraf@suse.de> | 2014-06-18 21:56:55 +0200 |
|---|---|---|
| committer | Alexander Graf <agraf@suse.de> | 2014-07-28 18:30:18 +0200 |
| commit | 8de12015ff75967b16f70e5938b151390dac9b77 (patch) | |
| tree | 8b934668765b6a2fa4a9eb9ffc9f6389d02e3bfb /arch/powerpc/kvm/book3s.c | |
| parent | d69614a295aef72f8fb22da8e3ccf1a8f19a7ffc (diff) | |
KVM: PPC: Expose helper functions for data/inst faults
We're going to implement guest code interpretation in KVM for some rare
corner cases. This code needs to be able to inject data and instruction
faults into the guest when it encounters them.
Expose generic APIs to do this in a reasonably subarch agnostic fashion.
Signed-off-by: Alexander Graf <agraf@suse.de>
Diffstat (limited to 'arch/powerpc/kvm/book3s.c')
| -rw-r--r-- | arch/powerpc/kvm/book3s.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/arch/powerpc/kvm/book3s.c b/arch/powerpc/kvm/book3s.c index de8da3387e90..dd03f6b299ba 100644 --- a/arch/powerpc/kvm/book3s.c +++ b/arch/powerpc/kvm/book3s.c @@ -230,6 +230,23 @@ void kvmppc_core_dequeue_external(struct kvm_vcpu *vcpu) kvmppc_book3s_dequeue_irqprio(vcpu, BOOK3S_INTERRUPT_EXTERNAL_LEVEL); } +void kvmppc_core_queue_data_storage(struct kvm_vcpu *vcpu, ulong dar, + ulong flags) +{ + kvmppc_set_dar(vcpu, dar); + kvmppc_set_dsisr(vcpu, flags); + kvmppc_book3s_queue_irqprio(vcpu, BOOK3S_INTERRUPT_DATA_STORAGE); +} + +void kvmppc_core_queue_inst_storage(struct kvm_vcpu *vcpu, ulong flags) +{ + u64 msr = kvmppc_get_msr(vcpu); + msr &= ~(SRR1_ISI_NOPT | SRR1_ISI_N_OR_G | SRR1_ISI_PROT); + msr |= flags & (SRR1_ISI_NOPT | SRR1_ISI_N_OR_G | SRR1_ISI_PROT); + kvmppc_set_msr_fast(vcpu, msr); + kvmppc_book3s_queue_irqprio(vcpu, BOOK3S_INTERRUPT_INST_STORAGE); +} + int kvmppc_book3s_irqprio_deliver(struct kvm_vcpu *vcpu, unsigned int priority) { int deliver = 1; |