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Re: [Xen-users] 64bit guest on 32bit host

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Subject: Re: [Xen-users] 64bit guest on 32bit host
From: Mark Williamson <mark.williamson@xxxxxxxxxxxx>
Date: Thu, 10 Apr 2008 23:00:40 +0100
Cc: weiming <zephyr.zhao@xxxxxxxxx>, Rudi Ahlers <Rudi@xxxxxxxxxxx>, Antonio Lobato <lobato@xxxxxxxxxxxxxx>
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>     Is there some problem to achieve it?
>     If it is possible, is there some specific doc about or I just have
> to do a normal install?

If your host CPU is 32-bit then there's no way of running a 64-bit guest using 
Xen - sorry.  You could try Qemu (http://www.qemu.org) which is a full 
emulator and thus might be able to do what you want.

If you have a 64-bit CPU then you can (running a 64-bit Xen) run 32-bit *and* 
64-bit Xen guests simultaneously.  You can even run a 32-bit dom0 ("host" 
operating system) but /Xen itself has to be 64-bit/, which means that 
your /hardware/ has to be 64-bit.

I hope this clears up any confusion.  Please ask more questions if you're 
still unsure!


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