| From: |
| Jean-Philippe Brucker <jean-philippe-AT-linaro.org> |
| To: |
| rjw-AT-rjwysocki.net, lenb-AT-kernel.org, joro-AT-8bytes.org, mst-AT-redhat.com |
| Subject: |
| [PATCH v4 0/6] Add support for ACPI VIOT |
| Date: |
| Thu, 10 Jun 2021 09:51:27 +0200 |
| Message-ID: |
| <20210610075130.67517-1-jean-philippe@linaro.org> |
| Cc: |
| will-AT-kernel.org, catalin.marinas-AT-arm.com, baolu.lu-AT-linux.intel.com, dwmw2-AT-infradead.org, linux-acpi-AT-vger.kernel.org, iommu-AT-lists.linux-foundation.org, virtualization-AT-lists.linux-foundation.org, linux-arm-kernel-AT-lists.infradead.org, eric.auger-AT-redhat.com, sebastien.boeuf-AT-intel.com, robin.murphy-AT-arm.com, kevin.tian-AT-intel.com, lorenzo.pieralisi-AT-arm.com, guohanjun-AT-huawei.com, sudeep.holla-AT-arm.com, jean-philippe-AT-linaro.org |
| Archive-link: |
| Article |
Add a driver for the ACPI VIOT table, which provides topology
information for para-virtual IOMMUs. Enable virtio-iommu on
non-devicetree platforms, including x86.
Since v3 [1] I fixed a build bug for !CONFIG_IOMMU_API. Joerg offered to
take this series through the IOMMU tree, which requires Acks for patches
1-3.
You can find a QEMU implementation at [2], with extra support for
testing all VIOT nodes including MMIO-based endpoints and IOMMU.
This series is at [3].
[1] https://lore.kernel.org/linux-iommu/20210602154444.107700...
[2] https://jpbrucker.net/git/qemu/log/?h=virtio-iommu/acpi
[3] https://jpbrucker.net/git/linux/log/?h=virtio-iommu/acpi
Jean-Philippe Brucker (6):
ACPI: arm64: Move DMA setup operations out of IORT
ACPI: Move IOMMU setup code out of IORT
ACPI: Add driver for the VIOT table
iommu/dma: Pass address limit rather than size to
iommu_setup_dma_ops()
iommu/dma: Simplify calls to iommu_setup_dma_ops()
iommu/virtio: Enable x86 support
drivers/acpi/Kconfig | 3 +
drivers/iommu/Kconfig | 4 +-
drivers/acpi/Makefile | 2 +
drivers/acpi/arm64/Makefile | 1 +
include/acpi/acpi_bus.h | 3 +
include/linux/acpi.h | 3 +
include/linux/acpi_iort.h | 14 +-
include/linux/acpi_viot.h | 19 ++
include/linux/dma-iommu.h | 4 +-
arch/arm64/mm/dma-mapping.c | 2 +-
drivers/acpi/arm64/dma.c | 50 +++++
drivers/acpi/arm64/iort.c | 129 ++-----------
drivers/acpi/bus.c | 2 +
drivers/acpi/scan.c | 78 +++++++-
drivers/acpi/viot.c | 364 +++++++++++++++++++++++++++++++++++
drivers/iommu/amd/iommu.c | 9 +-
drivers/iommu/dma-iommu.c | 17 +-
drivers/iommu/intel/iommu.c | 10 +-
drivers/iommu/virtio-iommu.c | 8 +
MAINTAINERS | 8 +
20 files changed, 580 insertions(+), 150 deletions(-)
create mode 100644 include/linux/acpi_viot.h
create mode 100644 drivers/acpi/arm64/dma.c
create mode 100644 drivers/acpi/viot.c
--
2.31.1
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