1reserved-memory device tree nodes 2================================= 3 4OPAL exposes reserved memory through a top-level reserved-memory node, 5containing subnodes that represent each reserved memory region. 6 7This follows the Linux specification for the /reserved-memory node, 8described in the kernel source tree, in: 9 10 Documentation/devicetree/bindings/reserved-memory/reserved-memory.txt 11 12The top-level /reserved-memory node contains: :: 13 14 #size-cells = <2> 15 #address-cells = <2> 16 17Addresses and sizes are all 64-bits. 18 19``ranges`` 20 the empty ranges node indicates no translation of physical 21 addresses in the subnodes. 22 23The sub-nodes under the /reserved-memory node contain: 24 25``reg = <address size>`` 26 the address and size of the reserved memory region. The address 27 and size values are two cells each, as signified by the top-level 28 ``#{address,size}-cells`` 29 30``ibm,prd-label = "string"`` 31 a string token for use by the prd system. Specific ranges may be 32 used by prd - those will be referenced by this label. 33