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

  • To: "Javier Guerra" <javier@xxxxxxxxxxx>
  • From: "Brian Weaver" <bjweaverl@xxxxxxxxx>
  • Date: Wed, 24 May 2006 19:19:31 -0600
  • Cc: xen-users@xxxxxxxxxxxxxxxxxxx
  • Delivery-date: Wed, 24 May 2006 18:20:09 -0700
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  • List-id: Xen user discussion <xen-users.lists.xensource.com>
On 5/24/06, Javier Guerra <javier@xxxxxxxxxxx> wrote:

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)

--
Javier



So I assume with Vanderpool this will work fine? I currently don't
have any vt processors to test with..

Brian

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