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[PATCH v5 00/12] virtio-iommu: Add ACPI support
From: |
Jean-Philippe Brucker |
Subject: |
[PATCH v5 00/12] virtio-iommu: Add ACPI support |
Date: |
Wed, 20 Oct 2021 18:27:34 +0100 |
Allow instantiating a virtio-iommu device on ACPI systems by adding a
Virtual I/O Translation table (VIOT). Enable x86 support for VIOT.
Patches 5-8 need acks from Arm maintainers in order for this to go
through the x86 tree.
Changes since v4 [1]:
* New patch 2 removes unnecessary x86_iommu_get_type().
* Patch 3 now moves the IOMMU variable into PCMachineState, in addition
to the check for duplicate IOMMUs.
* Fixed assertion error in patch 6.
* Addressed the other comments.
* Added more review and test tags, thanks!
The boot-bypass series [2] isn't a hard requirement for this series but
will be needed for complete support. In the meantime, storage accessed
by firmware needs to bypass the IOMMU some other way, using either a
virtio-blk device without the iommu_platform property, or a bypass
bridge (docs/iommu-bypass.txt).
You can find a description of the VIOT table, which will be included in
next ACPI version, here: https://jpbrucker.net/virtio-iommu/viot/viot-v9.pdf
[1]
20211001173358.863017-1-jean-philippe@linaro.org/">https://lore.kernel.org/qemu-devel/20211001173358.863017-1-jean-philippe@linaro.org/
[2]
https://lore.kernel.org/qemu-devel/20210930185050.262759-1-jean-philippe@linaro.org/
Jean-Philippe Brucker (12):
hw/acpi: Add VIOT table
hw/i386/pc: Remove x86_iommu_get_type()
hw/i386/pc: Move IOMMU singleton into PCMachineState
hw/i386/pc: Allow instantiating a virtio-iommu device
hw/arm/virt-acpi-build: Add VIOT table for virtio-iommu
hw/arm/virt: Remove device tree restriction for virtio-iommu
hw/arm/virt: Reject instantiation of multiple IOMMUs
hw/arm/virt: Use object_property_set instead of qdev_prop_set
tests/acpi: allow updates of VIOT expected data files
tests/acpi: add test cases for VIOT
tests/acpi: add expected blob for VIOT test on virt machine
tests/acpi: add expected blobs for VIOT test on q35 machine
hw/acpi/viot.h | 13 ++++
include/hw/i386/pc.h | 1 +
include/hw/i386/x86-iommu.h | 12 ----
hw/acpi/viot.c | 114 +++++++++++++++++++++++++++++++++
hw/arm/virt-acpi-build.c | 7 ++
hw/arm/virt.c | 20 +++---
hw/i386/acpi-build.c | 28 ++++----
hw/i386/amd_iommu.c | 2 -
hw/i386/intel_iommu.c | 3 -
hw/i386/pc.c | 26 +++++++-
hw/i386/x86-iommu-stub.c | 5 --
hw/i386/x86-iommu.c | 31 +++------
hw/virtio/virtio-iommu-pci.c | 12 +---
tests/qtest/bios-tables-test.c | 38 +++++++++++
hw/acpi/Kconfig | 4 ++
hw/acpi/meson.build | 1 +
hw/arm/Kconfig | 1 +
hw/i386/Kconfig | 1 +
tests/data/acpi/q35/DSDT.viot | Bin 0 -> 9398 bytes
tests/data/acpi/q35/VIOT.viot | Bin 0 -> 112 bytes
tests/data/acpi/virt/VIOT | Bin 0 -> 88 bytes
21 files changed, 242 insertions(+), 77 deletions(-)
create mode 100644 hw/acpi/viot.h
create mode 100644 hw/acpi/viot.c
create mode 100644 tests/data/acpi/q35/DSDT.viot
create mode 100644 tests/data/acpi/q35/VIOT.viot
create mode 100644 tests/data/acpi/virt/VIOT
--
2.33.0
- [PATCH v5 00/12] virtio-iommu: Add ACPI support,
Jean-Philippe Brucker <=