Rtwo/kernel/motorola/sm8550-devicetrees/bindings/soc/qcom/qcom,mem-buf.yaml
2025-09-30 19:22:48 -05:00

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YAML

%YAML 1.2
---
$id: "http://devicetree.org/schemas/soc/qcom/qcom,mem-buf.yaml#"
$schema: "http://devicetree.org/meta-schemas/core.yaml#"
title: Qualcomm Technologies, Inc. Memory Buffer Sharing binding
maintainers:
- Isaac J. Manjarres <isaacm@quicinc.com>
description: |
The memory buffer sharing driver is used for lending memory
from one virtual machine to another.
properties:
compatible:
items:
- const: qcom,mem-buf
qcom,vmid:
description: integer ID of the current virtual machine.
qcom,mem-buf-capabilities:
oneOf:
- const: supplier
description:
Allows the mem-buf driver to supply memory to other VMs through
remote allocation requests.
- const: consumer
description:
Allows the mem-buf driver to request and accept memory from
other VMs. VMs with only this capability cannot satisfy remote
allocation requests.
- const: dual
description:
Allows the mem-buf driver to supply memory to other VMs through
remote allocation requests, as well as request and accept memory
from other VMs
required:
- compatible
- qcom,mem-buf-capabilities
examples:
- |
qcom,mem-buf {
compatible = "qcom,mem-buf";
qcom,mem-buf-capabilities = "supplier";
};
description: |
Provides inter-VM message transfer services to the qcom,mem-buf driver
properties:
compatible:
items:
- const: qcom,mem-buf-msgq
required:
- compatible