RE: [Xen-users] Problems booting a 32bit domU kernel on a Debian sarge amd64 x86_64 dom0 host.

["Petersson, Mats" <Mats.Petersson@xxxxxxx>]

> -----Original Message-----
> From: xen-users-bounces@xxxxxxxxxxxxxxxxxxx 
> [mailto:xen-users-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of 
> Javier Guerra
> Sent: 24 May 2006 20:09
> To: xen-users@xxxxxxxxxxxxxxxxxxx
> Subject: Re: [Xen-users] Problems booting a 32bit domU kernel 
> on a Debian sarge amd64 x86_64 dom0 host.
> 
> On Wednesday 24 May 2006 9:00 am, Brian Weaver wrote:
> > Is it not possible to have a x86_64 dom0 run a 32 bit domU kernel?
> 
> nope, the guest kernels (both dom0 and domU) have to use the 
> same memory model as the Xen hypervisor: 32bit, PAE or 64bit. 
>  that implies that dom0 and domU have to match too.
> 
> for HVM guests it's more relaxed, and a 64bit hypervisor can 
> run 32bit HVM guests. (not sure about PAE)

PAE should work on 64-bit HV. It's not clear if PAE on PAE works or not
- last time I saw something about it, it seemed like it's not... 

--
Mats
> 
> --
> Javier
> 


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