This series rebases the virtio-iommu device on qemu 3.0.0-rc3 and implements the v0.7 virtio-iommu spec [1]. This is a basic upgrade as the fate of the virtio mmio based solution is unclear.
It also fixes a bug when the end-points are not attached to the root bus. Important notice: the way the virtio-iommu is instantiated was changed to fit the way the smmuv3 is, ie. using a virt machine option: ",iommu=virtio". Best Regards Eric This series can be found at: https://github.com/eauger/qemu/tree/v3.0.0-rc3-virtio-iommu-v0.7 References: [1] [RFC] virtio-iommu version 0.7 git://linux-arm.org/virtio-iommu.git viommu/v0.7 [2] guest branch featuring the virtio-iommu driver v0.7 https://github.com/eauger/linux/tree/v4.18-rc1-virtio-iommu-v0.7-acpi Testing: - tested with guest using virtio-net-pci (,vhost=off,iommu_platform,disable-modern=off,disable-legacy=on) and virtio-blk-pci - VFIO/VHOST integration is not part of this series History: v6 -> v7: - rebase on qemu 3.0.0-rc3 - minor update against v0.7 - fix issue with EP not on pci.0 and ACPI probing - change the instantiation method v5 -> v6: - minor update against v0.6 spec - fix g_hash_table_lookup in virtio_iommu_find_add_as - replace some error_reports by qemu_log_mask(LOG_GUEST_ERROR, ...) v4 -> v5: - event queue and fault reporting - we now return the IOAPIC MSI region if the virtio-iommu is instantiated in a PC machine. - we bypass transactions on MSI HW region and fault on reserved ones. - We support ACPI boot with mach-virt (based on IORT proposal) - We moved to the new driver naming conventions - simplified mach-virt instantiation - worked around the disappearing of pci_find_primary_bus - in virtio_iommu_translate, check the dev->as is not NULL - initialize as->device_list in virtio_iommu_get_as - initialize bufstate.error to false in virtio_iommu_probe v3 -> v4: - probe request support although no reserved region is returned at the moment - unmap semantics less strict, as specified in v0.4 - device registration, attach/detach revisited - split into smaller patches to ease review - propose a way to inform the IOMMU mr about the page_size_mask of underlying HW IOMMU, if any - remove warning associated with the translation of the MSI doorbell 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 (16): linux-headers: Partial update for virtio-iommu v0.7 virtio-iommu: Add skeleton virtio-iommu: Decode the command payload virtio-iommu: Add the iommu regions virtio-iommu: Endpoint and domains structs and helpers virtio-iommu: Implement attach/detach command virtio-iommu: Implement map/unmap virtio-iommu: Implement translate virtio-iommu: Implement probe request virtio-iommu: Add an msi_bypass property virtio-iommu: Implement fault reporting virtio_iommu: Handle reserved regions in translation process qdev: export qbus_find_recursive hw/arm/virt: Add virtio-iommu to the virt board hw/arm/virt-acpi-build: Add virtio-iommu node in IORT table hw/arm/virt: Allow virtio-iommu instantiation hw/arm/virt-acpi-build.c | 39 +- hw/arm/virt.c | 59 +- hw/virtio/Makefile.objs | 1 + hw/virtio/trace-events | 24 + hw/virtio/virtio-iommu.c | 1041 +++++++++++++++++++++++++ include/hw/acpi/acpi-defs.h | 21 +- include/hw/arm/virt.h | 1 + include/hw/qdev-core.h | 3 + include/hw/virtio/virtio-iommu.h | 64 ++ include/standard-headers/linux/virtio_ids.h | 1 + include/standard-headers/linux/virtio_iommu.h | 172 ++++ linux-headers/linux/virtio_iommu.h | 1 + qdev-monitor.c | 5 +- 13 files changed, 1418 insertions(+), 14 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
