[PATCH v15 0/9] VIRTIO-IOMMU device

[Eric Auger <eric.auger@redhat.com>]

This series implements the QEMU virtio-iommu device.

This matches the v0.12 spec (voted) and the corresponding
virtio-iommu driver upstreamed in 5.3. All kernel dependencies
are resolved for DT integration. The virtio-iommu can be
instantiated in ARM virt using:

"-device virtio-iommu-pci".

Non DT mode is not yet supported as it has non resolved kernel
dependencies [1].

This feature targets 5.0.

Integration with vhost devices and vfio devices is not part
of this series. Please follow Bharat's respins [2].

Best Regards

Eric

This series can be found at:
https://github.com/eauger/qemu/tree/v4.2-virtio-iommu-v15

References:
[1] [RFC 00/13] virtio-iommu on non-devicetree platforms
[2] [PATCH RFC v5 0/5] virtio-iommu: VFIO integration

Testing:
- tested with guest using virtio-net-pci
  (,vhost=off,iommu_platform,disable-modern=off,disable-legacy=on)
  and virtio-blk-pci
- migration

History:

v14 -> v15:
- removed x-dt-binding and just kept check on hotplug_handler
- removed "tests: Add virtio-iommu test" as the check on
  hotplug_handler fails on PC machine
- destroy mappings in put_domain and remove
  g_tree_destroy(domain->mappings) in virtio_iommu_detach

v13 -> v14:
- added "virtio-iommu-pci: Introduce the x-dt-binding option"
- Removed the mappings gtree ref counting and simply delete
  the gtree when the last EP is detached from the domain
- call virtio_iommu_detach_endpoint_from_domain from
  virtio_iommu_put_endpoint

v12 -> v13:
- Take into account Peter's comments
- fix qtest error and accomodate for directory changes in
  test
- remove "[PATCH v12 01/13] migration: Support QLIST migration"
  which is now upstream
- fix iommu_find_iommu_pcibus()
- squash commits as requested by Peter
- remove spurious guest log

../..

Eric Auger (9):
  virtio-iommu: Add skeleton
  virtio-iommu: Decode the command payload
  virtio-iommu: Implement attach/detach command
  virtio-iommu: Implement map/unmap
  virtio-iommu: Implement translate
  virtio-iommu: Implement fault reporting
  virtio-iommu-pci: Add virtio iommu pci support
  hw/arm/virt: Add the virtio-iommu device tree mappings
  virtio-iommu: Support migration

 hw/arm/virt.c                    |  57 +-
 hw/virtio/Kconfig                |   5 +
 hw/virtio/Makefile.objs          |   2 +
 hw/virtio/trace-events           |  20 +
 hw/virtio/virtio-iommu-pci.c     | 103 ++++
 hw/virtio/virtio-iommu.c         | 890 +++++++++++++++++++++++++++++++
 include/hw/arm/virt.h            |   2 +
 include/hw/pci/pci.h             |   1 +
 include/hw/virtio/virtio-iommu.h |  61 +++
 qdev-monitor.c                   |   1 +
 10 files changed, 1135 insertions(+), 7 deletions(-)
 create mode 100644 hw/virtio/virtio-iommu-pci.c
 create mode 100644 hw/virtio/virtio-iommu.c
 create mode 100644 include/hw/virtio/virtio-iommu.h

-- 
2.20.1