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

[Cornelia Huck]

On Wed, 12 Sep 2018 15:42:59 -0400
Tony Krowiak <akrowiak@xxxxxxxxxxxxxxxxxx> wrote:

> From: Tony Krowiak <akrowiak@xxxxxxxxxxxxx>
> 
> 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@xxxxxxxxxxxxx>
> Reviewed-by: Halil Pasic <pasic@xxxxxxxxxxxxx>
> Tested-by: Michael Mueller <mimu@xxxxxxxxxxxxx>
> Tested-by: Farhan Ali <alifm@xxxxxxxxxxxxx>
> Tested-by: Pierre Morel <pmorel@xxxxxxxxxxxxx>
> Signed-off-by: Christian Borntraeger <borntraeger@xxxxxxxxxx>
> ---
>  drivers/s390/crypto/vfio_ap_ops.c |   51 +++++++++++++++++++++++++++++++++++++
>  1 files changed, 51 insertions(+), 0 deletions(-)

Reviewed-by: Cornelia Huck <cohuck@xxxxxxxxxx>