linux-kernel - Re: [PATCH v10 09/26] s390: vfio-ap: sysfs interface to view matrix mdev matrix

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Date:   Mon, 24 Sep 2018 12:59:10 +0200
From:   Cornelia Huck <cohuck@...hat.com>
To:     Tony Krowiak <akrowiak@...ux.vnet.ibm.com>
Cc:     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 09/26] s390: vfio-ap: sysfs interface to view matrix
 mdev matrix

On Wed, 12 Sep 2018 15:42:59 -0400
Tony Krowiak <akrowiak@...ux.vnet.ibm.com> wrote:

> From: Tony Krowiak <akrowiak@...ux.ibm.com>
> 
> Provides a sysfs interface to view the AP matrix configured for the
> mediated matrix device.
> 
> The relevant sysfs structures are:
> 
> /sys/devices/vfio_ap/matrix/
> ...... [mdev_supported_types]
> ......... [vfio_ap-passthrough]
> ............ [devices]
> ...............[$uuid]
> .................. matrix
> 
> To view the matrix configured for the mediated matrix device,
> print the matrix file:
> 
> 	cat matrix
> 
> Below are examples of the output from the above command:
> 
> Example 1: Adapters and domains assigned
> 	Assignments:
> 		Adapters 5 and 6
> 		Domains 4 and 71 (0x47)
> 
> 	Output
> 		05.0004
> 		05.0047
> 		06.0004
> 	06.0047
> 
> Examples 2: Only adapters assigned
> 	Assignments:
> 		Adapters 5 and 6
> 
> 	Output:
> 		05.
> 		06.
> 
> Examples 3: Only domains assigned
> 	Assignments:
> 		Domains 4 and 71 (0x47)
> 
> 	Output:
> 		.0004
> 		.0047
> 
> Signed-off-by: Tony Krowiak <akrowiak@...ux.ibm.com>
> Reviewed-by: Halil Pasic <pasic@...ux.ibm.com>
> Tested-by: Michael Mueller <mimu@...ux.ibm.com>
> Tested-by: Farhan Ali <alifm@...ux.ibm.com>
> Tested-by: Pierre Morel <pmorel@...ux.ibm.com>
> Signed-off-by: Christian Borntraeger <borntraeger@...ibm.com>
> ---
>  drivers/s390/crypto/vfio_ap_ops.c |   51 +++++++++++++++++++++++++++++++++++++
>  1 files changed, 51 insertions(+), 0 deletions(-)

Reviewed-by: Cornelia Huck <cohuck@...hat.com>