My question is an extension of this. Basically I enabled “Hyper-V” and “Windows Hypervisor Platform“. I did this because I will create a new VM in hyper-v that has GPU passthrough since VirtualBox’s hypervisor cannot do it. So now I have a VM in VirtualBox that I set up to use KVM as paravirtualization and has the nested virtualization enabled (As shown in the images below). However, when I boot it I cannot see the /dev/kvm anymore. When I disable the Hyper-V and win hypervisor platform the guest’s /dev/kvm appears again. Is it possible to make my VirtualBox VM use the KVM as its nested hypervisor? I don’t want to export the VM and migrate it to hyper-v manager because it’s already >500Gb.
KVM as paravirtualization platform
And here is what features I enabled on my host Windows.
