Rtwo/kernel/motorola/sm8550-devicetrees/bindings/virtio/qcom,virtio-mem.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,secure-buffer.yaml#"
$schema: "http://devicetree.org/meta-schemas/core.yaml#"
title: Qualcomm Technologies, Inc. Virtio-Mem bindings
description: |
QCOM virtio mem driver supports Guest initiated memory hotplug operations
which transfer memory from Host to Guest.
properties:
compatible:
items:
- const: qcom,virtio-mem
reg:
description:
Physical address and size of hotpluggable region. Must be aligned
to memory_block_size_bytes() - This is same as section size on
arm64 which is 256MB when CONFIG_ARM64_MEMMAP_ON_MEMORY defined
else defaults to 128MB.
qcom,block_size:
description:
Minimum transfer size in bytes. Should be multiple of PAGE_SIZE.
required:
- compatible
- qcom,block-size
example:
virtio_mem_device {
compatible = "qcom,virtio-mem";
reg = <0x60000000 0x10000000>;
qcom,block_size = <0x400000>;
};