Re: [Xen-users] 64 bit dom0 and 32 bit HVM

[Mark Williamson <mark.williamson@xxxxxxxxxxxx>]

If you installed Xen 3.1 on your host system (and a corresponding new dom0 
kernel) then you can run 32-bit PAE guests directly on a 64-bit Xen without 
using HVM.

I imagine Redhat will add Xen 3.1 to a future point release of RHEL in any 
case.  But there are some packages for Xen 3.1 on RHEL on the XenSource 
website.

Cheers,
Mark

On Monday 06 August 2007, Riccardo Veraldi wrote:
> Hello,
> I have a 64 bit dom0 with RHEL5
>
> I have a 32 bit domU para virtualized
>
> I want to bring it on my new dom0
>
> so I installed a non xen kernel on the domU
> and I copyed the image file on hte dom0
>
> I changed the /etc/xen/myhost accordingly
>
> but when I start the domain it hangs and nothing happens
>
> here is
>
> /etc/xen/sympa5_3_2
>
> name = "sympa5_3_2"
> builder = "hvm"
> memory = "1024"
> disk = [ 'file:/xen/domU/sympa5_3_2,hda,w', ]
> vif = [ 'mac=00:16:3e:3f:a9:f5, bridge=xenbr1', ]
> vfb = ["type=vnc,vncunused=1"]
> uuid = "ffc68565-354a-32da-7302-72a1bd5ff1af"
> device_model = "/usr/lib/xen/bin/qemu-dm"
> kernel = "/usr/lib/xen/boot/hvmloader"
> vcpus=1
> on_reboot   = 'restart'
> on_crash    = 'restart'
>
>
> I Also took a qemu-dm and used it insted of the default one which is 64bit
>
> [root@xenserver2 xen]# xm create /etc/xen/sympa5_3_2 -c
> Using config file "/etc/xen/sympa5_3_2".
>
>
> nothing happens:
> [root@xenserver2 ~]# xm list
> Name                                      ID Mem(MiB) VCPUs State   Time(s)
> Domain-0                                   0     2976     4 r-----    605.2
> sympa5_3_2                                10     1030     1 --p---      0.0
>
> [root@xenserver2 ~]# xm unpause sympa5_3_2
>
> [root@xenserver2 ~]# xm list
> Name                                      ID Mem(MiB) VCPUs State   Time(s)
> Domain-0                                   0     2976     4 r-----    605.5
> sympa5_3_2                                10     1030     1 ------      0.0
>
> bit nothing happens.
>
> is there a way so that I Can bring my domU running on a 32 bit dom0
> para virtualized on my new 64 bit xen fully virtualized dom0 ?
>
> thanks a lot
>
> Rick
>
>
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-- 
Dave: Just a question. What use is a unicyle with no seat?  And no pedals!
Mark: To answer a question with a question: What use is a skateboard?
Dave: Skateboards have wheels.
Mark: My wheel has a wheel!

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