# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/gunyah/virtio_backend.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Virtio backend device for Gunyah hypervisor

maintainers:
  - Srivatsa Vaddagiri <quic_svaddagi@quicinc.com>
  - Sreenad Menon <quic_sreemeno@quicinc.com>

description: |+
  Configuration properties for Virtio backend device. This device is
  specific to virtio support found in Gunyah hypervisor. The
  device helps a virtio backend driver in one Virtual Machine
  establish connection with its frontend counterpart in another Virtual
  Machine, with both VMs running on Gunyah hypervisor.

properties:
  compatible:
    oneOf:
      - const: qcom,virtio_backend

  qcom,vm:
    $ref: /schemas/types.yaml#/definitions/phandle
    description:
      Handle to node that describes common properties of a VM to which this
      device belongs.

  qcom,label:
    $ref: '/schemas/types.yaml#/definitions/uint32'
    description:
      Unique label associated with the device. This label is used to identify
      the right device which is the target of ioctl() calls.

required:
  - compatible
  - qcom,vm
  - qcom,label

example:
  - |
    trustedvm: trustedvm@0 {
	reg = <0x0 0xdff00000 0x0 100000>;
	vm_name = "trustedvm";
    };

    virtio_backend@0 {
	compatible = "qcom,virtio_backend";
	qcom,vm = <&trustedvm>;
	qcom,label = <0x10200>;
     };