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[Qemu-arm] [RFC v5 00/22] VIRTIO-IOMMU device
From: |
Eric Auger |
Subject: |
[Qemu-arm] [RFC v5 00/22] VIRTIO-IOMMU device |
Date: |
Fri, 19 Jan 2018 14:48:53 +0000 |
This series implements the virtio-iommu device.
This v5 is an upgrade to v0.5 spec [1].
Compared to v4:
- 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
Best Regards
Eric
This series can be found at:
https://github.com/eauger/qemu/tree/v2.11.0-virtio-iommu-v5
References:
[1] [RFC] virtio-iommu version 0.5
git://linux-arm.org/virtio-iommu.git viommu/v0.5
[2] guest branch featuring the virtio-iommu driver v0.5
git://linux-arm.org/linux-jpb.git virtio-iommu/v0.5.1
Testing:
- tested with guest using virtio-pci-net and virtio-blk-pci
(,vhost=off,iommu_platform,disable-modern=off,disable-legacy=on)
- virtio-blk-pci uses irqfd: with GICv3, use
"target/arm/kvm: Translate the MSI doorbell in kvm_arch_fixup_msi_route"
available on my branch
- VFIO support will be brought by a separate series
- on x86 is hacked guest kernel (available on demand)
History:
v4 -> v5:
- new functionalities reported above + below fixes:
- 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:
- see above
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 (22):
machine: Add a get_primary_pci_bus callback
hw/arm/virt: Implement get_primary_pci_bus
pc: Implement get_primary_pci_bus
update-linux-headers: Import virtio_iommu.h
linux-headers: Partial update for virtio-iommu
virtio-iommu: Add skeleton
virtio-iommu: Decode the command payload
virtio-iommu: Add the iommu regions
virtio-iommu: Register attached endpoints
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
hw/arm/virt: Add virtio-iommu to the virt board
hw/arm/virt-acpi-build: Add virtio-iommu node in IORT table
memory.h: Add set_page_size_mask IOMMUMemoryRegion callback
hw/vfio/common: Set the IOMMUMemoryRegion supported page sizes
virtio-iommu: Implement set_page_size_mask
hw/vfio/common: Do not print error when viommu translates into an mmio
region
hw/arm/virt-acpi-build.c | 55 +-
hw/arm/virt.c | 99 ++-
hw/i386/pc.c | 8 +
hw/vfio/common.c | 7 +-
hw/virtio/Makefile.objs | 1 +
hw/virtio/trace-events | 25 +
hw/virtio/virtio-iommu.c | 1063 +++++++++++++++++++++++++
include/exec/memory.h | 4 +
include/hw/acpi/acpi-defs.h | 21 +-
include/hw/arm/virt.h | 19 +
include/hw/boards.h | 3 +
include/hw/vfio/vfio-common.h | 1 +
include/hw/virtio/virtio-iommu.h | 63 ++
include/standard-headers/linux/virtio_ids.h | 1 +
include/standard-headers/linux/virtio_iommu.h | 195 +++++
linux-headers/linux/virtio_iommu.h | 1 +
scripts/update-linux-headers.sh | 3 +
17 files changed, 1552 insertions(+), 17 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
--
1.9.1
- [Qemu-arm] [RFC v5 00/22] VIRTIO-IOMMU device,
Eric Auger <=
- [Qemu-arm] [RFC v5 01/22] machine: Add a get_primary_pci_bus callback, Eric Auger, 2018/01/19
- [Qemu-arm] [RFC v5 02/22] hw/arm/virt: Implement get_primary_pci_bus, Eric Auger, 2018/01/19
- [Qemu-arm] [RFC v5 03/22] pc: Implement get_primary_pci_bus, Eric Auger, 2018/01/19
- [Qemu-arm] [RFC v5 04/22] update-linux-headers: Import virtio_iommu.h, Eric Auger, 2018/01/19
- [Qemu-arm] [RFC v5 05/22] linux-headers: Partial update for virtio-iommu, Eric Auger, 2018/01/19
- [Qemu-arm] [RFC v5 06/22] virtio-iommu: Add skeleton, Eric Auger, 2018/01/19
- [Qemu-arm] [RFC v5 07/22] virtio-iommu: Decode the command payload, Eric Auger, 2018/01/19
- [Qemu-arm] [RFC v5 08/22] virtio-iommu: Add the iommu regions, Eric Auger, 2018/01/19
- [Qemu-arm] [RFC v5 09/22] virtio-iommu: Register attached endpoints, Eric Auger, 2018/01/19
- [Qemu-arm] [RFC v5 10/22] virtio-iommu: Implement attach/detach command, Eric Auger, 2018/01/19