On 07/18/2017 04:24 PM, Cornelia Huck wrote:
> Only set the zpci and aen feature bits on builds that actually
> support pci.
>
> Signed-off-by: Cornelia Huck <coh...@redhat.com>
> ---
> target/s390x/kvm.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/target/s390x/kvm.c b/target/s390x/kvm.c
> index 831492f9a2..880eccd58a 100644
> --- a/target/s390x/kvm.c
> +++ b/target/s390x/kvm.c
> @@ -2685,8 +2685,10 @@ void kvm_s390_get_host_cpu_model(S390CPUModel *model,
> Error **errp)
> }
>
> /* set zpci and aen facilities */
> +#ifdef CONFIG_PCI
> set_bit(S390_FEAT_ZPCI, model->features);
> set_bit(S390_FEAT_ADAPTER_EVENT_NOTIFICATION, model->features);
> +#endif
>
> if (s390_known_cpu_type(cpu_type)) {
> /* we want the exact model, even if some features are missing */
>
Not strictly necessary but do you also want to ifdef this
kvm_vm_enable_cap(s, KVM_CAP_S390_AIS, 0);
call?
If not you could actually even allow AEN but not PCI for !CONFIG_PCI.
