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Contributor
Contributor

Not solved: VMware Workstation does not support nested virtualization on this host.

I have the latest version of VMware player (free). I have an OVA that requires VT-x/EPT and am running into this exact issue:

VMware Workstation does not support nested virtualization on this host.

I have a clean, updated version of Windows 10. I'm using the latest version of Player, Hyper-V is disabled. I see a number of people aren't having any luck on workarounds. Any updates?

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User Moderator
User Moderator

Welcome to the Community,

please provide some information about your hardware.

Create a VM (e.g. a virtual ESXi host) and enable "Enable VT-x/EPT ..:" on the virtual CPU, then start the VM, and if you see the same error, attach the VM's vmware.log file to your next reply.

André

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CPU specs:

Intel(R) Core(TM) i7-7600U CPU @ 2.80GHz

Intel64 Family 6 Model 142 Stepping 9, GenuineIntel

Microcode signature: 000000D6

HYPERVISOR      *       Hypervisor is present

VMX             -       Supports Intel hardware-assisted virtualization

EPT             -       Supports Intel extended page tables (SLAT)

URG             -       Supports Intel unrestricted guest

vmware log attached. Thanks!

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User Moderator
User Moderator

According to the log file, Virtualization Technology (VT-x) does not seem to be enabled in your host's BIOS.


André

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Contributor

Screenshot of bios setting attached.

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User Moderator
User Moderator

2020-08-09T12:39:13.120-04:00| vmx| I005: Common: MSR   0x3a =              0

Unfortunately it's not detected as enabled. Can you confirm that - after enabling it in the BIOS - that you did a complete power cycle of the host, i.e. complete power off/power on?

What does CPU-Z​ report?

André

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-With virtualization disabled in the bios, cpu-id Instructions shows VT-x. When I try to run the VM, Player errors out saying it needs VT-x. Task manager shows virtualization disabled.

-With virtualization enabled in the bios, cpu-id Instructions does not show VT-x. When I try to run the VM, Player gives my original error. Task manager shows virtualization enabled.

Latest BIOS and firmware. I'm officially confused. Smiley Happy

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Can you tell me which line of the log shows that VT-x is not enabled?

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I'm also experiencing the same issue. I've also included my vmware log as well. I've seen previous thread and have only been able to run my ESXi VM by disabling Hyper-V. Any help on this would be appreciated.

OS Name:                   Microsoft Windows 10 Pro

OS Version:                10.0.19041 N/A Build 19041

System Type:               x64-based PC

Processor(s):              1 Processor(s) Installed.

                           [01]: Intel64 Family 6 Model 94 Stepping 3 GenuineIntel ~4001 Mhz

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User Moderator
User Moderator

Please run msinfo32.exe to see what it reports for the different "Hyper-V" settings in the system overview screen.

André

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Contributor

I've attached screenshots of msinfo.

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User Moderator
User Moderator

The System Summary screen shot doesn't show the Hyper-V settings. Please scroll down on the right side for these settings.

Btw. you can insert images directly into the reply, no need to add them as an attachment.

André

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Contributor

I think you are faced with the fact that Vmvare Workstation (and the Player) does not support nested virtualization on Windows hosts with Hoper-V support enabled. This situation occurs on Windows 10 2004 and later. Although Vmvare declares that Hoper-V and Workstation can work together, this is not true in terms of nested virtualization. The only solution to use nested virtualization is to disable the Hyper-V boot. See details in the discussion in thread - VMware Workstation does not support nested virtualization on this host.

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