Re: [PATCH v5 1/7] s390: ap: kvm: add PQAP interception for AQIC

From: Pierre Morel
Date: Thu Mar 21 2019 - 10:05:48 EST


On 19/03/2019 18:07, Pierre Morel wrote:
On 19/03/2019 15:54, Halil Pasic wrote:
On Tue, 19 Mar 2019 11:01:44 +0100
Pierre Morel <pmorel@xxxxxxxxxxxxx> wrote:

On 15/03/2019 18:28, Halil Pasic wrote:


...snip...


We should also do it right for TAPQ with t bit set. I remember
Christian already warned about this but we did not implement it.


Yes, I have some blurry memories of something similar myself. I wonder
if there was a reason, or did we just forget to address this issue.


I will integrate it in the next iteration too, even it is not IRQ, the PQAP hook patch can be more general.

After all, I will not do this, I remember the reason why we did not do it once: simply it is not intercepted until we enable it.

So we will handle it when we enable the TAPQ-t interception

Regards,
Pierre

--
Pierre Morel
Linux/KVM/QEMU in BÃblingen - Germany