CentOS 7
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Nested Virtualization
Configure Nested Virtualization function and Install HyperVisor like KVM on GuestOS on VMware Player.
It's possible to nest virtualization to test various apprications. Your CPU is required to have Intel VT-x/EPT or AMD-V/RVI.
⇒ http://ark.intel.com/Products/VirtualizationTechnology/
[1] Open the "Virtual Machine Settings" of a Virtual Machine you'd like to configure Nested Virtualization. After opening it, move to "Processors" section, then configure the settings like follows. It's OK for all.