83 lines
2.3 KiB
YAML
83 lines
2.3 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/firmware/gunyah-hypervisor.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Gunyah Hypervisor
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maintainers:
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- Prakruthi Deepak Heragu <quic_pheragu@quicinc.com>
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- Elliot Berman <quic_eberman@quicinc.com>
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description: |+
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Gunyah virtual machines use this information to determine the capability IDs
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of the message queues used to communicate with the Gunyah Resource Manager.
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See also: https://github.com/quic/gunyah-resource-manager/blob/develop/src/vm_creation/dto_construct.c
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properties:
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compatible:
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const: gunyah-hypervisor
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"#address-cells":
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description: Number of cells needed to represent 64-bit capability IDs.
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const: 2
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"#size-cells":
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description: must be 0, because capability IDs are not memory address
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ranges and do not have a size.
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const: 0
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patternProperties:
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"^gunyah-resource-mgr(@.*)?":
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type: object
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description:
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Resource Manager node which is required to communicate to Resource
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Manager VM using Gunyah Message Queues.
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properties:
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compatible:
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const: gunyah-resource-manager
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reg:
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items:
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- description: Gunyah capability ID of the TX message queue
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- description: Gunyah capability ID of the RX message queue
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interrupts:
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items:
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- description: Interrupt for the TX message queue
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- description: Interrupt for the RX message queue
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additionalProperties: false
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required:
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- compatible
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- reg
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- interrupts
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additionalProperties: false
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required:
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- compatible
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- "#address-cells"
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- "#size-cells"
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examples:
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- |
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#include <dt-bindings/interrupt-controller/arm-gic.h>
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hypervisor {
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#address-cells = <2>;
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#size-cells = <0>;
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compatible = "gunyah-hypervisor";
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gunyah-resource-mgr@0 {
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compatible = "gunyah-resource-manager";
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interrupts = <GIC_SPI 3 IRQ_TYPE_EDGE_RISING>, /* TX allowed IRQ */
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<GIC_SPI 4 IRQ_TYPE_EDGE_RISING>; /* RX requested IRQ */
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reg = <0x00000000 0x00000000>, /* TX capability ID */
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<0x00000000 0x00000001>; /* RX capability ID */
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};
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};
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