Question about 64 bit Xen

Question about 64 bit Xen

[Tom Hibbert]

Hi all, we're thinking of getting some athlon 64s as build boxes here.
Just a quick question. I'm not sure if an athlon 64 in 64 bit mode can
compile for a 32 bit arch. Comments? Secondly, and this question
actually pertains to Xen. Can I run a 32 bit domU in a 64 bit dom0, or
do both kernels need to be compiled for 64 bit arch?
 
Thanks in advance
 
Tom


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Re: Question about 64 bit Xen

[Anthony Liguori]

Tom Hibbert wrote:

>Just a quick question. I'm not sure if an athlon 64 in 64 bit mode can
>compile for a 32 bit arch. Comments? Secondly, and this question
>  
>
You can build your own cross compiling gcc to build from any 
architecture to just about any architecture.  So the answer is yes.

>actually pertains to Xen. Can I run a 32 bit domU in a 64 bit dom0, or
>do both kernels need to be compiled for 64 bit arch?
>  
>
I think the goal for the near future is to require 64 bit guests 
(although those guests will be able to run apps in 32-bit mode).

Regards,
Anthony Liguori

>Thanks in advance
> 
>Tom
>
>
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