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torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/Documentation/devicetree/bindings/bus/microsoft,vmbus.yaml
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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)

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%YAML 1.2

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---

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$id: http://devicetree.org/schemas/bus/microsoft,vmbus.yaml#

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$schema: http://devicetree.org/meta-schemas/core.yaml#

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title: Microsoft Hyper-V VMBus

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maintainers:

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  - Saurabh Sengar <ssengar@linux.microsoft.com>

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description:

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  VMBus is a software bus that implements the protocols for communication

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  between the root or host OS and guest OS'es (virtual machines).

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properties:

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  compatible:

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    const: microsoft,vmbus

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  ranges: true

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  '#address-cells':

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    const: 2

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  '#size-cells':

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    const: 1

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  dma-coherent: true

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  interrupts:

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    maxItems: 1

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    description: Interrupt is used to report a message from the host.

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required:

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  - compatible

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  - ranges

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  - interrupts

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  - '#address-cells'

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  - '#size-cells'

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additionalProperties: false

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examples:

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  - |

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    #include <dt-bindings/interrupt-controller/irq.h>

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    #include <dt-bindings/interrupt-controller/arm-gic.h>

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    soc {

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        #address-cells = <2>;

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        #size-cells = <1>;

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        bus {

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            compatible = "simple-bus";

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            #address-cells = <2>;

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            #size-cells = <1>;

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            ranges;

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            vmbus@ff0000000 {

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                compatible = "microsoft,vmbus";

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                #address-cells = <2>;

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                #size-cells = <1>;

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                ranges = <0x0f 0xf0000000 0x0f 0xf0000000 0x10000000>;

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                dma-coherent;

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                interrupt-parent = <&gic>;

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                interrupts = <GIC_PPI 2 IRQ_TYPE_EDGE_RISING>;

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            };

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        };

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    };

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