linux-kernel - Re: [PATCH v9 17/21] vfio-pci/zdev: add open/close device hooks

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Message-ID: <3bde716c-0432-cf2d-6057-2d60fb86c3e8@linux.ibm.com>
Date:   Tue, 28 Jun 2022 13:22:26 +0200
From:   Pierre Morel <pmorel@...ux.ibm.com>
To:     Matthew Rosato <mjrosato@...ux.ibm.com>, linux-s390@...r.kernel.org
Cc:     alex.williamson@...hat.com, cohuck@...hat.com,
        schnelle@...ux.ibm.com, farman@...ux.ibm.com,
        borntraeger@...ux.ibm.com, hca@...ux.ibm.com, gor@...ux.ibm.com,
        gerald.schaefer@...ux.ibm.com, agordeev@...ux.ibm.com,
        svens@...ux.ibm.com, frankja@...ux.ibm.com, david@...hat.com,
        imbrenda@...ux.ibm.com, vneethv@...ux.ibm.com,
        oberpar@...ux.ibm.com, freude@...ux.ibm.com, thuth@...hat.com,
        pasic@...ux.ibm.com, pbonzini@...hat.com, corbet@....net,
        jgg@...dia.com, kvm@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-doc@...r.kernel.org
Subject: Re: [PATCH v9 17/21] vfio-pci/zdev: add open/close device hooks



On 6/6/22 22:33, Matthew Rosato wrote:
> During vfio-pci open_device, pass the KVM associated with the vfio group
> (if one exists).  This is needed in order to pass a special indicator
> (GISA) to firmware to allow zPCI interpretation facilities to be used
> for only the specific KVM associated with the vfio-pci device.  During
> vfio-pci close_device, unregister the notifier.
> 
> Signed-off-by: Matthew Rosato <mjrosato@...ux.ibm.com>


Reviewed-by: Pierre Morel <pmorel@...ux.ibm.com>

-- 
Pierre Morel
IBM Lab Boeblingen