Re: [PATCH v16 00/14] s390/vfio-ap: dynamic configuration support

From: Tony Krowiak
Date: Wed May 19 2021 - 07:52:41 EST

On 5/18/21 12:54 PM, Halil Pasic wrote:
On Tue, 18 May 2021 09:26:01 -0400
Tony Krowiak <akrowiak@xxxxxxxxxxxxx> wrote:

I'm already working on it. I went trough the all the changes once, and
I'm currently trying to understand the new usages of
matrix_mdev->wait_for_kvm and matrix_mdev->kvm_busy. You seem to be
using these a new purpose...

I merely added that to the commit function which sets the masks
in the guest's APCB. This is the same usage as in the
vfio_ap_mdev_unset_kvm() function, to prevent a lockdep splat
similar to the scenario for which those fields were added in the
first place.