On Mon, Jan 05 2026, Mike Rapoport wrote:
From: "Mike Rapoport (Microsoft)" <rppt@kernel.org>
Introduce KHO ABI header describing preservation ABI for memblock's
reserve_mem regions and link the relevant documentation to KHO docs.
Signed-off-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
---
[...]
+ * / {
+ * compatible = "memblock-v1";
+ *
+ * n1 {
+ * compatible = "reserve-mem-v1";
+ * start = <0xc06b 0x4000000>;
+ * size = <0x04 0x00>;
+ * };
+ * };
+ *
+ * Main memblock node (/):
+ *
+ * - compatible: "memblock-v1"
+
+ * Identifies the overall memblock ABI version.
+ *
+ * reserved_mem node:
+ * These nodes describe all reserve_mem regions.
+ *
+ * - compatible: "reserve-mem-v1"
+ *
+ * Identifies the ABI version of reserve_mem descriptions
+ *
+ * - start: u64
+ *
+ * Physical address of the reserved memory region.
+ *
+ * - size: u64
+ *
+ * size in bytes of the reserved memory region.
I think you should also mention that the name of the node is the name of
the map.
Other than this,
Reviewed-by: Pratyush Yadav <pratyush@kernel.org>
+ */
+
+/* Top level memblock FDT node name. */
+#define MEMBLOCK_KHO_FDT "memblock"
+
+/* The compatible string for the memblock FDT root node. */
+#define MEMBLOCK_KHO_NODE_COMPATIBLE "memblock-v1"
+
+/* The compatible string for the reserve_mem FDT nodes. */
+#define RESERVE_MEM_KHO_NODE_COMPATIBLE "reserve-mem-v1"
+
+#endif /* _LINUX_KHO_ABI_MEMBLOCK_H */
[...]
--
Regards,
Pratyush Yadav