[Qemu-devel] [v4 0/6] AMD IOMMU Interrupt remapping

[David Kiarie <davidkiarie4@gmail.com>]

Hello,

This patchset adds AMD IOMMU interrupt remapping logic to Qemu.

I have made some changes to the way X86 Qemu manages MSI routes. The 
current code assumes that MSI routes are affiliated to a PCI device which 
will not always be the case with split irqchip. With split irqchip platform
devices, in our case IOAPIC should be able to make interrupt requests via KVM.

That being said, we not have IOMMU interrupt remapping and these platform devices
will be expected to make interrupt requests using an explicit SID. I have therefore
made some changes so that MSI routes are affiliated to a Requester ID and a PCI device
if one is present.

This patchset builds ontop of the AMD IOMMU patchset but is available here[1] for quick
testing.

https://github.com/aslaq/qemu IR

David Kiarie (6):
  hw/msi: Allow platform devices to use explicit SID
  hw/i386: enforce SID verification
  hw/iommu: Prepare for AMD IOMMU interrupt remapping
  hw/iommu: AMD IOMMU interrupt remapping
  hw/acpi: report IOAPIC on IVRS
  hw/iommu: share common code between IOMMUs

 hw/i386/acpi-build.c              |   2 +
 hw/i386/amd_iommu.c               | 240 +++++++++++++++++++++++++++++++++++++-
 hw/i386/amd_iommu.h               |  82 +++++++++++++
 hw/i386/intel_iommu.c             |  89 +++++++-------
 hw/i386/kvm/pci-assign.c          |  12 +-
 hw/i386/trace-events              |   7 ++
 hw/i386/x86-iommu.c               |   8 ++
 hw/intc/ioapic.c                  |  30 ++++-
 hw/misc/ivshmem.c                 |   6 +-
 hw/vfio/pci.c                     |   6 +-
 hw/virtio/virtio-pci.c            |   7 +-
 include/hw/i386/ioapic_internal.h |   1 +
 include/hw/i386/x86-iommu.h       |   1 +
 include/sysemu/kvm.h              |  25 ++--
 kvm-all.c                         |  10 +-
 kvm-stub.c                        |   5 +-
 qemu-version.h                    |   1 +
 target-i386/kvm.c                 |  15 ++-
 18 files changed, 461 insertions(+), 86 deletions(-)
 create mode 100644 qemu-version.h

-- 
2.1.4