Re: [Xen-users] Re: 32 bit guests on 64 bit xen0 ?

["M.A. Williamson" <maw48@xxxxxxxxx>]

> > Is this currently possible?
> Sort-of.  You can run 32-bit code on top of an AMD64/EM64T kernel, because
> the CPU itself is backwards compatible.  It's done just the same way as
> running a 32-bit userland on top of a 64-bit kernel in the non-Xen world. 
> You can't run a 32-bit kernel on a 64-bit dom0, though.
If you run a VT or Pacifica CPU then you can run unmodified 32-bit (and 
32bit PAE) guests) as well as 64-bit guests.
Right now you can, as Matt says, only run a paravirtualised (Xen-aware) 
32-bit kernel on the 32-bit hypervisor, not on 64.
Cheers,
Mark

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