On the physical hardware, a controlprogram can be the host operating system or a hypervisor (see Figure 1).
在物理硬件上,控制程序可能是主机操作系统或管理程序(见图1)。
2
In some cases, the guest operating system is targeted to the same CPU as the controlprogram, but other cases may be different (for example, a PowerPC guest running on x86 hardware).