linux-kernel - Re: [PATCH v12 09/17] s390/vfio-ap: sysfs attribute to display the guest's matrix

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Message-ID: <20201129014904.4fafdbba.pasic@linux.ibm.com>
Date:   Sun, 29 Nov 2020 01:49:04 +0100
From:   Halil Pasic <pasic@...ux.ibm.com>
To:     Tony Krowiak <akrowiak@...ux.ibm.com>
Cc:     linux-s390@...r.kernel.org, linux-kernel@...r.kernel.org,
        kvm@...r.kernel.org, freude@...ux.ibm.com, borntraeger@...ibm.com,
        cohuck@...hat.com, mjrosato@...ux.ibm.com,
        alex.williamson@...hat.com, kwankhede@...dia.com,
        fiuczy@...ux.ibm.com, frankja@...ux.ibm.com, david@...hat.com,
        hca@...ux.ibm.com, gor@...ux.ibm.com
Subject: Re: [PATCH v12 09/17] s390/vfio-ap: sysfs attribute to display the
 guest's matrix

On Tue, 24 Nov 2020 16:40:08 -0500
Tony Krowiak <akrowiak@...ux.ibm.com> wrote:

> The matrix of adapters and domains configured in a guest's APCB may
> differ from the matrix of adapters and domains assigned to the matrix mdev,
> so this patch introduces a sysfs attribute to display the matrix of
> adapters and domains that are or will be assigned to the APCB of a guest
> that is or will be using the matrix mdev. For a matrix mdev denoted by
> $uuid, the guest matrix can be displayed as follows:
> 
>    cat /sys/devices/vfio_ap/matrix/$uuid/guest_matrix
> 
> Signed-off-by: Tony Krowiak <akrowiak@...ux.ibm.com>

Code looks good, but it may be a little early, since the treatment of
guset_matrix is changed by the following patches.