The host system only needs to allocate memory purely for the need of guest system (and its forked processes).
宿主系统只需要分配完全只是客户系统（及其派生的进程）所需要的内存。
The system running inside the emulator (called the guest system) won't need any modification (or at most, a few patches to guarantee that the OS works smoothly).
运行于模拟器中的系统（称为客户系统（guest system））不需要任何修改（或者，最多需要一些保证OS 平稳工作的补丁）。
This abstraction layer allows any operating system to run on the hardware without knowledge of any other guest operating system.
这个抽象层允许任何操作系统在硬件上运行，而不需要了解任何其他客户操作系统。
The techniques discussed here apply independently of the underlying virtualization technology and guest operating system you choose.
这里讨论的技术不依赖于您选择的基础虚拟化技术和客户操作系统。
The new mode is called guest, and as the name suggests, it's used for execution of guest operating system code (or at least some of it).
这种新模式就称为客户模式，顾名思义，它用来执行客户操作系统代码(至少是一部分代码)。
So, at the highest level, device passthrough is about providing an isolation of devices to a given guest operating system so that the device can be used exclusively by that guest (see Figure 3).
因此，在最高层面上，设备透传就是向一个特定客户操作系统提供一种设备隔离，以便该设备能够被那个客户操作系统独占使用(见图3)。
Within guest mode are the standard two modes, so that a guest operating system runs in guest mode but supports the standard kernel and user modes for its kernel and user-space applications.
在客户模式中有两种标准模式，因此客户操作系统在客户模式中运行可以支持标准的内核，而在用户模式下运行则支持自己的内核和用户空间应用程序。
With QEMU set up and running a guest operating system, you can now begin your software development.
现在QEMU已安装并运行客户操作系统，现在可以开始开发软件。
Finally, a guest operating system can support the same applications that the host operating system supports.
最后，客户操作系统可以支持主机操作系统所支持的相同应用程序。
The hypervisor does the job with the help of the guest operating system.
管理程序在客户操作系统的帮助下完成工作。
The TAP driver allows the guest operating system to read or write raw Ethernet frames to a virtual Ethernet device (extended to user space).
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)。
You can use it for guest operating system virtualization or as a full machine emulator running operating systems targeted to the host CPU or other CPU architectures.
可用于来宾操作系统的虚拟化，或作为完整的机器仿真器使用，运行使用主机CPU或其他CPU架构的操作系统。
Before you can use QEMU in system emulation mode, you must install a guest operating system.
在使用QEMU系统模拟模式之前，必须安装一个客户操作系统。
This is because each guest operating system is aware that it's being virtualized, so each cooperates with the hypervisor to virtualize the underlying hardware.
这是因为每个客户操作系统都了解自己正在虚拟化模式中运行，因此每个系统都与系统管理程序协作，来实现底层硬件的虚拟化。
Capture a running virtual server that is configured just the way you want, complete with guest operating system, running applications, and virtual server definition.
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。
In paravirtualization, the control program implements a hypervisor application program interface (API) that is used by the guest operating system.
在半虚拟化中，控制程序实现了管理程序的应用程序接口(API)，它将由来宾操作系统使用。
Performing I/O from a guest operating system is provided with QEMU.
在客户操作系统上执行I/O 的功能是由QEMU提供的。
The following example assumes that the guest operating system is on a CD-ROM.
下面的例子假设客户操作系统是在CD - ROM上。
The supported guest operating system is SLES10.
支持的来宾操作系统是SLES10。
QEMU includes a monitor console that allows you to inspect a running guest operating system as well as control various aspects of the virtual machine (VM).
QEMU包含一个监测控制台，它允许检查运行中的来宾操作系统并控制虚拟机(VM)各部分。
Instantiation of a new guest operating system is provided by a utility called KVM.
新客户操作系统的实例化是由一个名为kvm的工具提供的。
The original option specifies the name of the guest operating system as it is known to the virtual machine manager.
original选项指定客户操作系统的名称，因为它对于虚拟机管理器是已知的。
Buildd.rex: This script runs on each guest operating system and accesses the queues on the Web server looking for work.
rex：该脚本运行在每个客户操作系统上并访问Web服务器上的队列来查找工作。
VLAN support provided by the guest operating system
客户机操作系统提供的VLAN支持
The PS3's Other OS mode only allows the guest operating system to see its own portion of the drive.
PS3的OtherOS模式只允许客户操作系统看到磁盘上自己使用的部分。
Finally, the Documentation subdirectory in the kernel contains the launcher utility (lguest) to launch a new guest operating system instance.
最后，内核中的documentation子目录包含启动实用程序(lguest)，用于启动新的来宾操作系统实例。
Make sure that the host environment complies with the VMware Server and guest operating system requirements and limitations.
确保主机环境与VMwareServer兼容并能满足guest操作系统需求和限制。
VMware recommends that you disable the screen saver of your host machine before starting the installation of the Linux guest operating system.
VMware建议在开始安装Linux外来操作系统之前禁用主机的屏幕保护程序。
The two fundamental differences are that libvirt calls the physical host a node, and the guest operating system is called a domain.
两个根本区别在于，libvirt 将物理主机称作节点，将来宾操作系统称作域。
Further, the guest operating system has the most information about the workload's memory use and should be able to make the best page replacement decisions.
更进一步，客户操作系统具有最多的关于工作负载的内存使用的信息，应该能做出最好的页面替换决策。
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