但是从cpuinfo中查到有vmx指令, 对于这种情况, 说法如下:
* http://www.linux-kvm.org/page/FAQ#How_can_I_tell_if_I_have_Intel_VT_or_AMD-V.3F
使用KVM去虚拟OS时, 会扯到别一个名称:QEMU, 两者的区别:
QEMU and KVM
There are several different virtualization software packages available. Each has its own strengths and weaknesses. For this series of lessons, we'll concentrate on the QEMU and KVM packages. Of the four scenarios that we presented above, these two packages won't help you with the first one, but they can help you with the second, third, and fourth ones.
What's the difference between QEMU and KVM? Well, to simplify things a bit. . .
QEMU provides virtualization purely by means of software, and can be used as a stand-alone package.
KVM--which stands for "Kernel-based Virtual Machine"--provides for hardware-assisted virtualization. It can only be used with newer processors, such as Intel Core 2's or more recent AMD Athlon64's. It must be used in conjunction with QEMU. Also, you'll want to run it with at least kernel version 2.6.20. (That means, you'll want to install it on at least a Feisty Fawn version of the Ubuntu family.)
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