Re: [PATCH 0/2] s390/vfio-ap: do not open code locks for VFIO_GROUP_NOTIFY_SET_KVM notification

[Tony Krowiak]

On 8/2/21 9:53 AM, Halil Pasic wrote:
> On Mon, 2 Aug 2021 09:10:26 -0400
> Tony Krowiak <akrowiak@xxxxxxxxxxxxx> wrote:
>
> > PING!
> >
> > This patch will pre-req version 17 of a patch series I have waiting in
> > the wings,
> > so I'd like to get this one merged ASAP. In particular, if a KVM
> > maintainer can
> > take a look at the comments concerning the taking of the kvm->lock
> > before the
> > matrix_mdev->lock it would be greatly appreciated. Those comments begin with
> > Message ID <20210727004329.3bcc7d4f.pasic@xxxxxxxxxxxxx> from Halil Pasic.
> As far as I'm concerned, we can move forward with this. Was this
> supposed to go in via Alex's tree?

I am not certain, Christian queued the previous patches related to
this on:


https://git.kernel.org/pub/scm/linux/kernel/git/s390/linux.git/log/?h=fixes

Jason G., since this will need to be integrated with your other patches,
where should this be queued?

> > On 7/19/21 3:35 PM, Tony Krowiak wrote:
> > > This series is actually only comprised of a single patch to replace the
> > > open coded locks used during VFIO_GROUP_NOTIFY_SET_KVM notification. The
> > > first patch is included because it is a pre-req slotted to be merged but is
> > > not yet available in the kernel.
> > >
> > > Tony Krowiak (2):
> > >     s390/vfio-ap: r/w lock for PQAP interception handler function pointer
> > >     s390/vfio-ap: replace open coded locks for VFIO_GROUP_NOTIFY_SET_KVM
> > >       notification
> > >
> > >    arch/s390/include/asm/kvm_host.h      |   8 +-
> > >    arch/s390/kvm/kvm-s390.c              |  28 +++++-
> > >    arch/s390/kvm/priv.c                  |  10 +-
> > >    drivers/s390/crypto/vfio_ap_ops.c     | 127 +++++++++-----------------
> > >    drivers/s390/crypto/vfio_ap_private.h |   4 +-
> > >    5 files changed, 77 insertions(+), 100 deletions(-)
> > >