Carl Lowenstein wrote:
What are the options if you have a somewhat older host computer that does not support virtualization extensions? Certainly VMWare has been doing it for years, but is there something useful in Xen?
vmware does it using "full software virtualization" as opposed to full hardware virtualization (with vmx or svm cpu flags) or paravirtualization. vmware does its full software virtualization by trapping and then emulating all of the necessary instructions. This trap/emulate is a lot of extra cpu cycles which is why vmware is so slow and paravirtualized xen (with the help of the OS kernel) so much faster.
-- [email protected] http://www.kernel-panic.org/cgi-bin/mailman/listinfo/kplug-list
