Posted Dec 7, 2005 0:11 UTC (Wed) by xoddam
In reply to: Windows support
Parent article: Xen 3.0 released
I think you need a CPU with "Intel® Virtualization Technology" (like the
IBM System/360 had 25 years ago or more) to let a lightweight platform
virtualisation tool like Xen fool an OS which expects to run on bare x86
hardware. Without it, the OS needs to be compiled to target the Xen
'platform', which means using Xen's get/set methods for low-level
hardware configuration so changes can be trapped.
Heavier-weight virtualisation platforms like Win4Lin and VMWare are
essentially optimised emulators (though, since this is x86, the details
are byzantine), using the real CPU to run the guest OS but preventing it
from executing privileged instructions.
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