XEN 和 Windows 7 + Windows XP + Linux
您建议将 Windows 7 + Windows XP + Linux 安装为多重启动还是通过 XEN 进行安装？每种选择的优点和缺点是什么？
Do you suggest to install Windows 7 + Windows XP + Linux as multi-boot or via XEN? What are the advantages and disadvantages of each choice?
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如果您想使用 Windows 安装进行游戏，最简单的方法是将全部安装为多重启动。
从技术上讲，您还可以使用 XEN 并在 XEN 上运行 Windows，但为了充分利用显卡的潜力，您需要将其直接转发到 Windows VM，然后将无法将其用于其他操作系统/当时的虚拟机。
此外，当前让 VM 直接访问 GPU 的途径相当困难，并且严重依赖于硬件。目前，只有 Intel 主板才能为您提供成功进行此类设置的机会，即使是华硕等知名供应商通常也无法完全支持 VT-d 功能[1]。
一般来说：
对于游戏：不要使用 XEN（暂时！）
对于其他任何事情，它绝对值得一试，你可以获得很多功能，例如隔离和快照等。尽管你可能想考虑使用 KVM，它变得越来越用户友好。
[1] http://wiki.xen.org/xenwiki/VTdHowTo
If you want to use the Windows installations for gaming, the easiest path is to install all as multi-boot.
Technically you can also use XEN and run Windows on XEN, but then in order to use the full potential of the graphics card you would need to directly forward it to the Windows VM, and then would not be able to use it for the other OS/VMs at that time.
Also, the current path to give a VM direct access to a GPU is rather difficult and heavily hardware dependant. At the moment, only Intel Motherboards will give you chances of success for such a setup, even well established vendors such as ASUS often do not support the VT-d features completely yet[1].
So in general:
For Gaming: Don't use XEN (yet!)
For anything else it's definately worth a shot, you get a lot of features, such as isolation and snapshotting etc. Though you might want to consider using KVM which is becoming more and more user-friendly.
[1] http://wiki.xen.org/xenwiki/VTdHowTo