linux-kernel - Re: [PATCH v7 3/4] s390: ap: implement PAPQ AQIC interception in kernel

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Message-Id: <20190430113718.426392f0.pasic@linux.ibm.com>
Date:   Tue, 30 Apr 2019 11:37:18 +0200
From:   Halil Pasic <pasic@...ux.ibm.com>
To:     Pierre Morel <pmorel@...ux.ibm.com>
Cc:     borntraeger@...ibm.com, alex.williamson@...hat.com,
        cohuck@...hat.com, linux-kernel@...r.kernel.org,
        linux-s390@...r.kernel.org, kvm@...r.kernel.org,
        frankja@...ux.ibm.com, akrowiak@...ux.ibm.com, david@...hat.com,
        schwidefsky@...ibm.com, heiko.carstens@...ibm.com,
        freude@...ux.ibm.com, mimu@...ux.ibm.com
Subject: Re: [PATCH v7 3/4] s390: ap: implement PAPQ AQIC interception in
 kernel

On Tue, 30 Apr 2019 10:32:52 +0200
Pierre Morel <pmorel@...ux.ibm.com> wrote:

> >>> +    aqic_gisa.gisa = gisa->next_alert >> 4;  
> >>
> >> Why gisa->next_alert? Isn't this supposed to get set to gisa origin
> >> (without some bits on the left)?  

s/left/right/

> > 
> > Someone already asked this question.

It must have been in some previous iteration... Can you give me a
pointer?

> > The answer is: look at the ap_qirq_ctrl structure, you will see that the 
> > gisa field is 27 bits wide.

My question was not about the width, but about gisa->next_alert being
used.

Regards,
Halil