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android_kernel_samsung_sm87…/bindings/iommu/xen,grant-dma.yaml
Melody Olvera 6f18ce8026 dt-bindings: Add devicetree bindings
Add snapshot of device tree bindings from keystone common kernel, branch
"android-mainline-keystone-qcom-release" at c4c12103f9c0 ("Snap for 9228065
from e32903b9a63bb558df8b803b076619c53c16baad to
android-mainline-keystone-qcom-release").

Change-Id: I7682079615cbd9f29340a5c1f2a1d84ec441a1f1
Signed-off-by: Melody Olvera <quic_molvera@quicinc.com>
2023-04-03 15:40:37 -07:00

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993 B
YAML

# SPDX-License-Identifier: (GPL-2.0-only or BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/iommu/xen,grant-dma.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Xen specific IOMMU for virtualized devices (e.g. virtio)
maintainers:
- Stefano Stabellini <sstabellini@kernel.org>
description:
The Xen IOMMU represents the Xen grant table interface. Grant mappings
are to be used with devices connected to the Xen IOMMU using the "iommus"
property, which also specifies the ID of the backend domain.
The binding is required to restrict memory access using Xen grant mappings.
properties:
compatible:
const: xen,grant-dma
'#iommu-cells':
const: 1
description:
The single cell is the domid (domain ID) of the domain where the backend
is running.
required:
- compatible
- "#iommu-cells"
additionalProperties: false
examples:
- |
iommu {
compatible = "xen,grant-dma";
#iommu-cells = <1>;
};