Re: [Xen-devel] Windows...

[Steven Hand <Steven.Hand@xxxxxxxxxxxx>]

>Mark A. Williamson wrote:
>> Since there's VT code being integrated into Xen currently it seems 
>>reasonable to assume that when VT hardware comes out, Windows will Just 
>>Work (TM) but I don't know the concrete plans.  I may be wrong...
>
>Well, I think that even if Windows itself can run unmodified, there'd 
>still need to be a virtual BIOS, virtual VGA device, virtual IDE 
>controller, virtual NIC device, etc. They'd need to be emulations of 
>real devices, at least they'd have to be availabe until drivers can be 
>loaded (and written, of course) for Windows that can take over and 
>bypass the emulated devices. So the support for Intel VT/AMD Pacifica is 
>just the first step of many, really.

Some support for fully virtual devices is already checked into the 
-unstable tree (see tools/ioemu). This is useful for start-of-day, 
but in practice for performance one would replace these drivers with
Xen-aware paravirtualized ones after install. 

cheers, 

S.


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