This series implements the virtio-iommu device. This v3 mostly is a rebase on top of v2.10-rc0 that uses IOMMUMmeoryRegion plus some small fixes.
This is a proof of concept based on the virtio-iommu specification written by Jean-Philippe Brucker [1]. 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. Best Regards Eric This series can be found at: https://github.com/eauger/qemu/tree/v2.10.0-rc0-virtio-iommu-rfcv3 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 Testing: - >= 4.12 guest kernel + virtio-iommu driver [2] - guest using a virtio-net-pci device: ,vhost=off,iommu_platform,disable-modern=off,disable-legacy=on History: v2 -> v3: - rebase on top of 2.10-rc0 and especially [PATCH qemu v9 0/2] memory/iommu: QOM'fy IOMMU MemoryRegion - add mutex init - fix as->mappings deletion using g_tree_ref/unref - when a dev is attached whereas it is already attached to another address space, first detach it - fix some error values - page_sizes = TARGET_PAGE_MASK; - I haven't changed the unmap() semantics yet, waiting for the next virtio-iommu spec revision. 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 | 670 ++++++++++++++++++++++++++ include/hw/arm/virt.h | 5 + include/hw/virtio/virtio-iommu.h | 61 +++ 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, 1005 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
