On 05.02.20 14:50, Cornelia Huck wrote:
> On Mon, 3 Feb 2020 08:19:39 -0500
> Christian Borntraeger <borntraeger@xxxxxxxxxx> wrote:
>
>> From: Janosch Frank <frankja@xxxxxxxxxxxxx>
>>
>> SIE intercept code 8 is used only on exception loops for protected
>> guests. That means we need stop the guest when we see it.
>
> s/need stop/need to stop/
ack
>
> ...which is a task done by userspace?
ack
>>
>> Signed-off-by: Janosch Frank <frankja@xxxxxxxxxxxxx>
>> Reviewed-by: Thomas Huth <thuth@xxxxxxxxxx>
>> ---
>> arch/s390/kvm/intercept.c | 7 +++++++
>> 1 file changed, 7 insertions(+)
>>
>> diff --git a/arch/s390/kvm/intercept.c b/arch/s390/kvm/intercept.c
>> index c22214967214..d63f9cf10360 100644
>> --- a/arch/s390/kvm/intercept.c
>> +++ b/arch/s390/kvm/intercept.c
>> @@ -231,6 +231,13 @@ static int handle_prog(struct kvm_vcpu *vcpu)
>>
>> vcpu->stat.exit_program_interruption++;
>>
>> + /*
>> + * Intercept 8 indicates a loop of specification exceptions
>> + * for protected guests
>
> s/guests/guests./
ack.
>
>> + */
>> + if (kvm_s390_pv_is_protected(vcpu->kvm))
>> + return -EOPNOTSUPP;
>> +
>> if (guestdbg_enabled(vcpu) && per_event(vcpu)) {
>> rc = kvm_s390_handle_per_event(vcpu);
>> if (rc)
>
> Reviewed-by: Cornelia Huck <cohuck@xxxxxxxxxx>
>
