qemu-system-x86-microvm 1:4.2-3ubuntu6 (amd64 binary) in ubuntu focal

 QEMU is a fast processor emulator - this minimal package supports
 only KVM based x86-64 system emulation with a vastly reduced feature set
 intended to be used with the microvm machine type.
 .
 This minimal qemu is stripped of most features to save startup time when
 spawning for use cases with the microvm type and the bios-microvm.bin bios
 which are used to provide container like use cases with KVM isolation.
 For any other common KVM based activity qemu-system-x86 will be more suited.