I am trying to build a small virtualized testbed using some older Xeon-based servers that do not support Intel VT-x.
In their previous use, the servers were running VMware ESX 3.5. Is there a more up-to-date virtualization platform I could use?
Most solutions I have checked (KVM, VMware ESXi, and Microsoft Hyper-V) seem to require Intel VT extensions on the CPU. Is there any virtualization platform that still supports older hardware?