Emulating Hyper-V in 2022

Explore the latest developments in Hyper-V emulation through KVM in this 21-minute conference talk by Vitaly Kuznetsov from Red Hat. Delve into the ongoing process of implementing Hyper-V features in KVM while keeping up with Microsoft's new versions. Learn about recent additions such as hv-avic, hv-xmm-input, and hv-enforce-cpuid, as well as work-in-progress features like updated Enlightened VMCS. Discover the challenges of emulating proprietary operating systems, the importance of documentation, and the potential applications of Hyper-V features in non-Windows KVM deployments. Gain insights into the collaboration between KVM and Hyper-V in nested scenarios and understand the current gaps in feature implementation.

About myself
Why emulating some other hypervisor?
How do we know what proprietary OS need?
(Some) documentation
New feature: hv-avic
New feature: hv-xmm-input
New feature: hv-enforce-cpuid
WIP feature: updated Enlightened VMCS
TODO feature: hv-stimer-unhalted
TODO feature: free page reporting
Elephant in the room: VSM
KVM-on-KVM: use Hyper-V features?