虚拟化技术的分类: 1,模拟:Emulation Qemu,PearPC,Bochs 2,完全虚拟化:Full Virtualization,Native Virtualization HVM:hardware virtualization machine vmware workstation,virtualBox,Parallels desktop(mac),KVM,xen 3,半虚拟化:pava-virtualization 必须修改guestOS的内核,让它知道自己不是允许