This series implements the virtio-iommu device. This is a proof of concept based on the virtio-iommu specification written by Jean-Philippe Brucker [1]. This was tested with a guest using the virtio-iommu driver [2] and exposed with a virtio-net-pci using dma ops.
The device gets instantiated using the "-device virtio-iommu-device" option. It currently works with ARM virt machine only as the machine must handle the dt binding between the virtio-mmio "iommu" node and the PCI host bridge node. ACPI booting is not yet supported. This should allow to start some benchmarking activities against pure emulated IOMMU (especially ARM SMMU). Best Regards Eric This series can be found at: https://github.com/eauger/qemu/tree/virtio-iommu-rfcv2 References: [1] [RFC 0/3] virtio-iommu: a paravirtualized IOMMU, [2] [RFC PATCH linux] iommu: Add virtio-iommu driver [3] [RFC PATCH kvmtool 00/15] Add virtio-iommu History: v1 -> v2: - fix redifinition of viommu_as typedef Eric Auger (8): update-linux-headers: import virtio_iommu.h linux-headers: Update for virtio-iommu virtio_iommu: add skeleton virtio-iommu: Decode the command payload virtio_iommu: Add the iommu regions virtio-iommu: Implement the translation and commands hw/arm/virt: Add 2.10 machine type hw/arm/virt: Add virtio-iommu the virt board hw/arm/virt.c | 116 ++++- hw/virtio/Makefile.objs | 1 + hw/virtio/trace-events | 14 + hw/virtio/virtio-iommu.c | 623 ++++++++++++++++++++++++++ include/hw/arm/virt.h | 5 + include/hw/virtio/virtio-iommu.h | 60 +++ include/standard-headers/linux/virtio_ids.h | 1 + include/standard-headers/linux/virtio_iommu.h | 142 ++++++ linux-headers/linux/virtio_iommu.h | 1 + scripts/update-linux-headers.sh | 3 + 10 files changed, 957 insertions(+), 9 deletions(-) create mode 100644 hw/virtio/virtio-iommu.c create mode 100644 include/hw/virtio/virtio-iommu.h create mode 100644 include/standard-headers/linux/virtio_iommu.h create mode 100644 linux-headers/linux/virtio_iommu.h -- 2.5.5
