kernel/linux.git/Documentation/devicetree/bindings/virtio, branch v6.18.22

dt-bindings: virtio: pci-iommu: Add ref to pci-device.yaml

2025-04-22T14:40:08+00:00

The virtio pci-iommu is a PCI device, so it should have a reference to the pci-device.yaml schema. The pci-device.yaml schema defines the 'reg' format as a schema, so the text description for 'reg' can be dropped. Reviewed-by: Jean-Philippe Brucker Link: https://lore.kernel.org/r/20250407165341.2934499-1-robh@kernel.org Signed-off-by: Rob Herring (Arm)

dt-bindings: drop redundant part of title (end, part three)

2022-12-16T17:41:49+00:00

The Devicetree bindings document does not have to say in the title that it is a "binding", but instead just describe the hardware. Drop trailing "bindings" in various forms (also with trailing full stop): find Documentation/devicetree/bindings/ -type f -name '*.yaml' \ -not -name 'trivial-devices.yaml' \ -exec sed -i -e 's/^title: $.*$ [bB]indings\?\.\?$/title: \1/' {} \; Signed-off-by: Krzysztof Kozlowski Acked-by: Alexandre Belloni Acked-by: Matti Vaittinen # ROHM Acked-by: Ulf Hansson # MMC Acked-by: Stephen Boyd # clk Acked-by: Dmitry Torokhov # input Acked-by: Mark Brown Acked-by: Hans Verkuil # media Acked-by: Sebastian Reichel # power Acked-by: Viresh Kumar # cpufreq Link: https://lore.kernel.org/r/20221216163815.522628-7-krzysztof.kozlowski@linaro.org Signed-off-by: Rob Herring

dt-bindings: virtio: Convert virtio,pci-iommu to DT schema

2022-09-26T18:39:55+00:00

Convert the binding that describes the virtio-pci based IOMMU to DT schema. Change the compatible string to "pci,", which is defined by the PCI Bus Binding, but keep "virtio,pci-iommu" as an option for backward compatibility. Signed-off-by: Jean-Philippe Brucker Reviewed-by: Krzysztof Kozlowski Link: https://lore.kernel.org/r/20220923074435.420531-1-jean-philippe@linaro.org Signed-off-by: Rob Herring

dt-bindings: virtio: mmio: add optional wakeup-source property

2022-08-11T08:06:38+00:00

Some systems want to set the interrupt of virtio_mmio device as a wakeup source. On such systems, we'll use the existence of the "wakeup-source" property as a signal of requirement. Signed-off-by: Minghao Xue Reviewed-by: Krzysztof Kozlowski Message-Id: <1654851507-13891-2-git-send-email-quic_mingxue@quicinc.com> Signed-off-by: Michael S. Tsirkin

dt-bindings: virtio,mmio: Allow setting devices 'dma-coherent'

2022-03-20T19:08:08+00:00

'virtio,mmio' devices are always coherent within a guest. As Arm DTs are default non-coherent, the 'dma-coherent' property needs to be set on the virtio device to mark them as such. This aligns with the QEMU 'virt' machine DTB. Signed-off-by: Rob Herring Link: https://lore.kernel.org/r/20220310013528.549030-1-robh@kernel.org

dt-bindings: virtio: Add binding for virtio devices

2021-09-05T20:23:08+00:00

Allow virtio device sub-nodes to be added to the virtio mmio or pci nodes. The compatible property for virtio device must be of the format "virtio,device", where ID is virtio device ID in hexadecimal format. Signed-off-by: Viresh Kumar Link: https://lore.kernel.org/r/d8319fd18df7086b12cdcc23193c313893aa071a.1627362340.git.viresh.kumar@linaro.org Signed-off-by: Michael S. Tsirkin Reviewed-by: Arnd Bergmann Reviewed-by: Rob Herring

dt-bindings: virtio: Convert virtio-mmio to DT schema

2021-06-09T01:02:45+00:00

Convert the virtio-mmio binding to DT schema format. Cc: "Michael S. Tsirkin" Cc: Jason Wang Cc: Jean-Philippe Brucker Cc: virtualization@lists.linux-foundation.org Acked-by: Jean-Philippe Brucker Signed-off-by: Rob Herring Link: https://lore.kernel.org/r/20210607193928.3092186-1-robh@kernel.org/

dt-bindings: virtio: Replace HTTP links with HTTPS ones

2020-07-21T01:50:05+00:00

Rationale: Reduces attack surface on kernel devs opening the links for MITM as HTTPS traffic is much harder to manipulate. Deterministic algorithm: For each file: If not .svg: For each line: If doesn't contain `\bxmlns\b`: For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`: If neither `\bgnu\.org/license`, nor `\bmozilla\.org/MPL\b`: If both the HTTP and HTTPS versions return 200 OK and serve the same content: Replace HTTP with HTTPS. Signed-off-by: Alexander A. Klimov Link: https://lore.kernel.org/r/20200709064755.24051-1-grandmaster@al2klimov.de Signed-off-by: Rob Herring

dt-bindings: virtio: Add virtio-pci-iommu node

2019-06-06T21:32:13+00:00

Some systems implement virtio-iommu as a PCI endpoint. The operating system needs to discover the relationship between IOMMU and masters long before the PCI endpoint gets probed. Add a PCI child node to describe the virtio-iommu device. The virtio-pci-iommu is conceptually split between a PCI programming interface and a translation component on the parent bus. The latter doesn't have a node in the device tree. The virtio-pci-iommu node describes both, by linking the PCI endpoint to "iommus" property of DMA master nodes and to "iommu-map" properties of bus nodes. Reviewed-by: Rob Herring Reviewed-by: Eric Auger Signed-off-by: Jean-Philippe Brucker Signed-off-by: Michael S. Tsirkin

dt-bindings: virtio-mmio: Add IOMMU description

2019-06-06T21:32:13+00:00

The nature of a virtio-mmio node is discovered by the virtio driver at probe time. However the DMA relation between devices must be described statically. When a virtio-mmio node is a virtio-iommu device, it needs an "#iommu-cells" property as specified by bindings/iommu/iommu.txt. Otherwise, the virtio-mmio device may perform DMA through an IOMMU, which requires an "iommus" property. Describe these requirements in the device-tree bindings documentation. Reviewed-by: Rob Herring Reviewed-by: Eric Auger Signed-off-by: Jean-Philippe Brucker Signed-off-by: Michael S. Tsirkin