This appendix defines the string that is returned by the ibm,get-system-parameter RTAS call when the parameter token value of 44 (CMO Characteristics) is specified on the ibm,get-system-parameter RTAS call as per .

The LoPAR Cooperative Memory Over-commitment option (CMO) defines terms as presented in . Term Definition CMO Page Size Page size as determined by the hypervisor. CMO page size is expressed as the power of 2 of the page size. For example, a 4K page size is represented by the value of 12 (4K = 2 12). Primary Paging Service Partition The primary paging service partition identifies the primary VIOS which provides access to paging services and devices for partitions participating in CMO. The primary paging service partition value is the partition number of the VIOS. Secondary Paging Service Partition The secondary paging service partition identifies the secondary VIOS in a redundant Paging Service Partition configuration. If the hypervisor detects a problem with the primary VIOS, it fails over to the secondary VIOS. The secondary paging service partition value is the partition number of the secondary VIOS.

defines the key words and the associated legal values that will be returned in the ASCII NULL terminated string when the parameter token value of 44 (CMO characteristics) is specified on the ibm,get-system-parameter RTAS call. The key word and value is separated by an ASCII equal (“=”). Each key word, value pair is delimited by an ASCII comma in the string. The numerical value of the characteristic corresponding to the key word is the decimal number that corresponds to the numeric characters in the value part of the key word, value pair. Characteristics Key Word Values Notes CMO Page Size CMOPageSize 1 - 64   Primary Paging Service Partition PrPSP -1 through N Set to -1 when the partition is not in CMO mode (i.e. is a dedicated memory partition) Secondary Paging Service Partition SecPSP -1 through N