在这种模型中，访客操作系统在hypervisor之上的一层中运行。
In this model, guest operating system run on another layer above the hypervisor.
在这种模型中，宿主运行单一OS内核并向每个访客操作系统导出操作系统功能。
In this model, the host runs a single OS kernel as its core and exports operating system functionality to each of the guest operating systems.
虚拟化player在宿主操作系统上运行，向访客操作系统提供完整的硬件虚拟化。
Virtualization players run on host operating systems and provide the complete hardware virtualization to the guest operating systems.
在硬件虚拟化中，hypervisor向访客操作系统提供底层计算机系统的虚拟化抽象。
In hardware virtualization, the hypervisor provides the virtualization abstraction of the underlying computer system to the guest operating systems.
在hypervisor和访客操作系统之间有通信机制，用以提高相互协作的性能和效率。
There is a communication mechanism between hypervisor and guest operating systems to improve performance and better efficiency with mutual cooperation.
捕捉正在运行的虚拟服务器，从而获得访客操作系统、正在运行的应用程序和虚拟服务器定义。
Capture a running virtual server that is configured just the way you want, complete with guest operating system, running applications, and virtual server definition.
一些虚拟化 player提供了保存上下文或者暂停在访客操作系统上运行的任务的功能。
Some of the virtualization players provide a facility to save the context or suspend the running tasks on guest operating systems.
TAP驱动程序使访客操作系统能够将原始以太网帧写到一个虚拟以太网设备(用户空间的扩展)。
The TAP driver allows the guest operating system to read or write raw Ethernet frames to a virtual Ethernet device (extended to user space).
用户不需要定制就可以创建XEN虚拟机，可以用它们运行经过调优的虚拟化访客操作系统，产生出色的性能。
With no additional customization, users can create XEN virtual machines running modified, highly tuned, para-virtualized guest operating systems for optimal performance.
访客操作系统使用虚拟机监视程序(VMM)提供的API与hypervisor通信，从而直接访问底层硬件上的某些资源。
The guest operating system USES APIs, provided by virtual machine monitor (VMM), to communicate with the hypervisor to directly access certain resources on the underlying hardware.
访客必须使用与宿主相同的操作系统(见图4)。
Guests must use the same operating system as the host shown below in Figure 4.
访客必须使用与宿主相同的操作系统(见图4)。
Guests must use the same operating system as the host shown below in Figure 4.
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