bindings/virtio/pci-iommu.yaml

1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/virtio/pci-iommu.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: virtio-iommu device using the virtio-pci transport
10   - Jean-Philippe Brucker <jean-philippe@linaro.org>
13   When virtio-iommu uses the PCI transport, its programming interface is
16   masters. Therefore, the PCI root complex that hosts the virtio-iommu
20   virtio-iommu node doesn't have an "iommus" property, and is omitted from
21   the iommu-map property of the root complex.
26   # built-in identification methods, compatible is not actually required.
29       - items:
30           - const: virtio,pci-iommu
31           - const: pci1af4,1057
32       - items:
33           - const: pci1af4,1057
38       reference, the reg property is a five-cell address encoded as (phys.hi
43   '#iommu-cells':
47   - compatible
48   - reg
49   - '#iommu-cells'
54   - |
56         #address-cells = <2>;
57         #size-cells = <2>;
61             #address-cells = <3>;
62             #size-cells = <2>;
70             iommu-map = <0x0 &iommu0 0x0 0x8
77                 #iommu-cells = <1>;
83             #address-cells = <3>;
84             #size-cells = <2>;
90              * with endpoint IDs 0x10000 - 0x1ffff
92             iommu-map = <0x0 &iommu0 0x10000 0x10000>;