I think a better analogy are those processor flags found in /proc/cpuinfo in Linux systems. If your processor doesn't have the vmx or the svm flags, for exampl

I think a better analogy are those processor flags found in /proc/cpuinfo in Linux systems. If your processor doesn't have the vmx or the svm flags, for example, you can't use hardware virtualization but can still use software virtualization in its place, with a performance cost.