On 01/25/2018 04:31 PM, David Hildenbrand wrote:
[...]
>> struct kvm_s390_vsie {
>> diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
>> index 68d7eef..efde264 100644
>> --- a/arch/s390/kvm/kvm-s390.c
>> +++ b/arch/s390/kvm/kvm-s390.c
>> @@ -2518,6 +2518,8 @@ struct kvm_vcpu *kvm_arch_vcpu_create(struct kvm *kvm,
>> vcpu->arch.sie_block->icpua = id;
>> spin_lock_init(&vcpu->arch.local_int.lock);
>> vcpu->arch.sie_block->gd = (u32)(u64)kvm->arch.gisa;
>> + if (vcpu->arch.sie_block->gd && sclp.has_gisaf)
>> + vcpu->arch.sie_block->gd |= GISA_FORMAT1;
>> seqcount_init(&vcpu->arch.cputm_seqcount);
>>
>> rc = kvm_vcpu_init(vcpu, kvm, id);
>>
>
> So, what does this bring us? We don't seem to be using any new GISA-1
> features.
Preparation for device pass-through interrupt forwarding.
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