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Accelerating nested virtualization


frevan

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I'm trying to run VMWare Workstation inside a VM that in turn runs in unRAID 6.2 beta 23.

 

While I can run nested VMs, they run extremely slowly. As far as I can tell, this is because I've been unable to use hardware assisted virtualization ("Virtualize Intel VT-x" option in Workstation). When I enable the option, VMWare complains that this isn't available on the processor.

 

How would I make sure this is available in the VM? I found some information here (hiding KVM from the VM, setting vmport to off, some other things) but none have worked so far.

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I have a bunch of Windows VMs that I currently use for testing our software. Moving them all to KVM would involve a bit of work (not too much I guess), but more importantly I'd have to reactivate Windows on all of them. Furthermore, I can easily run them on other (Windows) computers if need be, as long as I install VMWare Player on them.

 

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