The test will prepare hypervisor units in virtual machines by
enabling hugepages configuration and rebooting them and
subsequent required runtime changes. If the hypervisor units
are physical machines the test assumes they already have
received the appropriate configuration from the bare metal
provisioning system.
Launch nested instance using flavor that enables hugepages and
attach it directly to the external network and perform
connectivity tests.
After a successful test the hypervisor units are brought back
to their original state to not influence subsequent tests.
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