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[RFC PATCH v1 0/8] s390x/vfio-ccw: Channel Path Handling

From: Eric Farman
Subject: [RFC PATCH v1 0/8] s390x/vfio-ccw: Channel Path Handling
Date: Fri, 15 Nov 2019 04:34:29 +0100

Here is a first pass at the channel-path handling code for vfio-ccw,
to take advantage of the corresponding kernel patches posted here:


As with the KVM patches, these were originally written by Farhan Ali
this past summer, and my git notes log the changes I've made since
picking up this work.  There are two commits at the front of this
series that seem to be pre-reqs to the actual changes for this, which
is why the linux-headers update seems lost in the middle of this.

I've tried to be mindful of testing permutations of new/old kernel with
either new/old QEMU, and it seems to be in good shape.

Eric Farman (2):
  vfio-ccw: Refactor cleanup of regions
  vfio-ccw: Refactor ccw irq handler

Farhan Ali (6):
  vfio-ccw: Return IOINST_CC_NOT_OPERATIONAL for EIO
  vfio-ccw: Don't inject an I/O interrupt if the subchannel is not
  linux-headers: update
  vfio-ccw: Add support for the schib region
  vfio-ccw: Add support for the crw region
  vfio-ccw: Add support for the CRW irq

 hw/s390x/css.c                 |   8 +-
 hw/s390x/s390-ccw.c            |  20 ++++
 hw/vfio/ccw.c                  | 195 +++++++++++++++++++++++++++++----
 include/hw/s390x/css.h         |   3 +-
 include/hw/s390x/s390-ccw.h    |   1 +
 linux-headers/linux/vfio.h     |   3 +
 linux-headers/linux/vfio_ccw.h |  10 ++
 target/s390x/ioinst.c          |   3 +-
 8 files changed, 217 insertions(+), 26 deletions(-)


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