linux-kernel - Re: [PATCH v10 10/26] KVM: s390: interfaces to clear CRYCB masks

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Message-ID: <20180924140120.398a3293.cohuck@redhat.com>
Date:   Mon, 24 Sep 2018 14:01:20 +0200
From:   Cornelia Huck <cohuck@...hat.com>
To:     Halil Pasic <pasic@...ux.ibm.com>
Cc:     Tony Krowiak <akrowiak@...ux.vnet.ibm.com>,
        linux-s390@...r.kernel.org, linux-kernel@...r.kernel.org,
        kvm@...r.kernel.org, freude@...ibm.com, schwidefsky@...ibm.com,
        heiko.carstens@...ibm.com, borntraeger@...ibm.com,
        kwankhede@...dia.com, bjsdjshi@...ux.vnet.ibm.com,
        pbonzini@...hat.com, alex.williamson@...hat.com,
        pmorel@...ux.vnet.ibm.com, alifm@...ux.vnet.ibm.com,
        mjrosato@...ux.vnet.ibm.com, jjherne@...ux.vnet.ibm.com,
        thuth@...hat.com, pasic@...ux.vnet.ibm.com, berrange@...hat.com,
        fiuczy@...ux.vnet.ibm.com, buendgen@...ibm.com,
        frankja@...ux.ibm.com, Tony Krowiak <akrowiak@...ux.ibm.com>
Subject: Re: [PATCH v10 10/26] KVM: s390: interfaces to clear CRYCB masks

On Mon, 24 Sep 2018 13:50:36 +0200
Halil Pasic <pasic@...ux.ibm.com> wrote:

> On 09/24/2018 01:01 PM, Cornelia Huck wrote:
> > On Wed, 12 Sep 2018 15:43:00 -0400
> > Tony Krowiak <akrowiak@...ux.vnet.ibm.com> wrote:
> >   
> >> From: Tony Krowiak <akrowiak@...ux.ibm.com>
> >>
> >> Introduces two new KVM interface to clear the APM, AQM and ADM masks in
> >> the guest's CRYCB.  The VCPUs are taken out of SIE to ensure the VCPUs do
> >> not get out of sync.  
> > 
> > Hm, that patch description does not quite match what the patch actually
> > does...
> >   
> 
> You mean it is not obvious where the masks get cleared? Well the APCB is
> defined to contain exactly the three masks. As far as I can tell the patch
> description is correct.

No, I was referring to "two new KVM interface[s]". The patch just
introduces a new function that clears the masks (well, maybe you can
call this an "interface"). So

s/two new KVM interface/a function in KVM/

and I'd be happy :) (sorry for being too vague)