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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
title: Kexec HandOver (KHO) root tree
maintainers:
- Mike Rapoport <rppt@kernel.org>
- Changyuan Lyu <changyuanl@google.com>
description: |
System memory preserved by KHO across kexec.
properties:
compatible:
enum:
- kho-v1
preserved-memory-map:
description: |
physical address (u64) of an in-memory structure describing all preserved
folios and memory ranges.
patternProperties:
"$[0-9a-f_]+^":
$ref: sub-fdt.yaml#
description: physical address of a KHO user's own FDT.
required:
- compatible
- preserved-memory-map
additionalProperties: false
examples:
- |
kho {
compatible = "kho-v1";
preserved-memory-map = <0xf0be16 0x1000000>;
memblock {
fdt = <0x80cc16 0x1000000>;
};
};
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