RFR(M): 8211424: Allocation of old generation of java heap on alternate memory devices - ParallelOld

[Kharbas, Kishor]

Hi all,
Requesting review of the patch for allocating old generation of parallelold gc on alternate memory devices such nv-dimm.

The design of this implementation is explained on the bug page - https://bugs.openjdk.java.net/browse/JDK-8211424.
This is subtask of https://bugs.openjdk.java.net/browse/JDK-8202286 which is implementation for parallel old gc.
Please follow the parent issue here : https://bugs.openjdk.java.net/browse/JDK-8202286.


(PS: this is continuation of old thread 'RFR(M): 8204908: NVDIMM for POGC and G1GC - ReserveSpace.cpp changes are mostly eliminated/no collector specific code.')

Webrev: http://cr.openjdk.java.net/~kkharbas/8211424/webrev.04
                http://cr.openjdk.java.net/~kkharbas/8211424/webrev.03_to_04


Thanks
Kishor