[Solved] Nested virtualization doesn't work (AMD)

elektronek · 2020-06-27 22:52:30

I'm trying to run hyper-v machines in virtualized windows server 2012R2 but it keep throwing error that hypervizor is already running.
Nested parameter is enabled

systool -m kvm_amd -v | grep nested
    nested              = "1"

And I run qemu with -enable-kvm -cpu host

qemu-system-x86_64 -m 4096 -hda winsys2012r2.img -enable-kvm -cpu host

Everything as arch wiki shows

Last edited by elektronek (2020-06-29 12:36:01)

Lone_Wolf · 2020-06-28 13:52:35

https://docs.microsoft.com/en-us/virtua … ualization

Some more reading suggests WS 2016 is the first to support nested hyper-V on intel processors, while you need WS 2019 to use hyper-V nesting on amd procesoors.

Running Hyper-V on kvm appears to be completely unsupported.

If the host has multiple processors, you could maybe passthrough a full processor to the windows server VM .

elektronek · 2020-06-29 00:37:20

Lone_Wolf wrote:

https://docs.microsoft.com/en-us/virtua … ualization
Some more reading suggests WS 2016 is the first to support nested hyper-V on intel processors, while you need WS 2019 to use hyper-V nesting on amd procesoors.
Running Hyper-V on kvm appears to be completely unsupported.
If the host has multiple processors, you could maybe passthrough a full processor to the windows server VM .

I checked it out and on both server 2016 and 2019 it works. Thanks!

Lone_Wolf · 2020-06-29 10:45:00

Great, please prepend [Solved] to the thread title (edit first post)

Arch Linux

#1 2020-06-27 22:52:30

[Solved] Nested virtualization doesn't work (AMD)

#2 2020-06-28 13:52:35

Re: [Solved] Nested virtualization doesn't work (AMD)

#3 2020-06-29 00:37:20

Re: [Solved] Nested virtualization doesn't work (AMD)

#4 2020-06-29 10:45:00

Re: [Solved] Nested virtualization doesn't work (AMD)

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