The backend default is kvm64 which works on essentially all x86_64 host CPUsand the UI default when creating a new VM is x86-64-v2-AES, which requires ahost CPU starting from Westmere for Intel or at least a fourth generationOpteron for AMD.
The backend default is kvm64 which works on essentially all x86_64 host CPUsand the UI default when creating a new VM is x86-64-v2-AES, which requires ahost CPU starting from Westmere for Intel or at least a fourth generationOpteron for AMD.