Nested Virtualization performance issue on AMD Ryzen 9 5950X
Software environment
- Operating system: Ubuntu 20.04
- Architecture: x86_64
- kernel version: 5.4.0-153-generic
- libvirt version: 6.0.0
- Hypervisor and version: QEMU 4.2.1
Whenever we use Host-passthrough CPU mode to create VPS and try to use KVM in that VPS, its performance is not good.
Most of the times the nested KVM VPS fails to boot in the VPS acting as Host.