linux-kernel - Re: [PATCH v4 05/15] KVM: s390: enable/disable AP interpretive execution

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Message-Id: <71625879-b5cd-ee0a-8259-0ac1e1eb5180@linux.vnet.ibm.com>
Date:   Tue, 17 Apr 2018 11:11:53 -0400
From:   Tony Krowiak <akrowiak@...ux.vnet.ibm.com>
To:     Halil Pasic <pasic@...ux.vnet.ibm.com>, linux-s390@...r.kernel.org,
        linux-kernel@...r.kernel.org, kvm@...r.kernel.org,
        akrowiak@...ux.vnet.ibm.com
Cc:     freude@...ibm.com, schwidefsky@...ibm.com,
        heiko.carstens@...ibm.com, borntraeger@...ibm.com,
        cohuck@...hat.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, berrange@...hat.com,
        fiuczy@...ux.vnet.ibm.com, buendgen@...ibm.com
Subject: Re: [PATCH v4 05/15] KVM: s390: enable/disable AP interpretive
 execution

On 04/16/2018 07:12 AM, Halil Pasic wrote:
>
> On 04/15/2018 11:22 PM, Tony Krowiak wrote:
>> The VFIO AP device model exploits interpretive execution of AP
>> instructions (APIE) to provide guests passthrough access to AP
>> devices. This patch introduces a new interface to enable and
>> disable APIE.
>>
>> Signed-off-by: Tony Krowiak <akrowiak@...ux.vnet.ibm.com>
> LGTM, but should be squashed into #4. (Like this you have a
> kernel that supports the cpu model feature 'ap' but does not
> do 'interpretation is default'.)

Okay