Hyper-V with VE 5.0 stating "No accelerator found"?

[Graymanflo]

Good afternoon.

My Debian 9 VM (inside Hyper-V) with VE 5.0 and virtualization enabled is giving me error "No accelerator found" although it should be enabled just fine:

$ lsmod | grep kvm


$ lscpu


Cluster log:


Could there be anything that I've missed?
Thanks.

 

[FastLaneJB]

Have you got a supported version of Hyper-V for Nested Virtualization and enabled that? Otherwise you won't be able to run KVM machines. LXC containers will be fine however.

https://docs.microsoft.com/en-us/virtualization/hyper-v-on-windows/user-guide/nested-virtualization

Also note that technically MS only support Hyper-V for Nested Virtualization so this still might not work, I've never tried it.

Virtualization applications other than Hyper-V are not supported in Hyper-V virtual machines, and are likely to fail. This includes any software that requires hardware virtualization extensions

 

[Graymanflo]

Hey @FastLaneJB!

NestedVM is enabled in Hyper-V although that didn't solve the "No accelerator found" error, could anything else be wrong?

 

[FastLaneJB]

I'll have to pass then. It's not officially supported by Microsoft but this blog seems to suggest it's possible at least with general KVM.

https://ianmarmour.com/2016/04/23/running-kvmxen-nested-in-microsoft-hyper-v/

 

[Graymanflo]

It's interesting, I'll give it a shot @FastLaneJB, thanks.

 

[Graymanflo]

No luck with the above suggestion, I'll be happy to try anything else.

 

[LnxBil]

I'll be happy to try anything else.

Abandon that M$ incarnation of what they think what virtualisation is and install PVE on the bare metal. I suppose PVE will run with hardware acceleration faster on a "off the shelf" laptop than it'll run in Hyper-V with deactivated KVM (which you can do to just play around with it, but it'll be dead slow).

 

[Graymanflo]

I understand @LnxBil however I'm tied to Hyper-V for now and the performance is very poor without hardware acceleration as it's almost unresponsive, wouldn't there be anything I could do in Hyper-V to enable standard visualization (VT-x) as opposite to KVM?

Thanks.

 

[LnxBil]

I understand @LnxBil however I'm tied to Hyper-V for now and the performance is very poor without hardware acceleration as it's almost unresponsive, wouldn't there be anything I could do in Hyper-V to enable standard visualization (VT-x) as opposite to KVM?

I'd suggest to ask in a Hyper-V forum.

 

[Graymanflo]

I'll give that a shot @LnxBil, other suggestions are also highly appreciated!