Re: [Xen-devel] Question on RHEL 6 support

[Alok Sinha <aksinha@xxxxxxxxxxxxx>]

Pasi,

   Thanks for your response.
   So how do I disable xen platform device for VM? Any pointers?
-Alok

On Oct 20, 2011, at 7:30 PM, Pasi Kärkkäinen wrote:

> On Thu, Oct 20, 2011 at 04:18:07PM +0530, Alok Sinha wrote:
>>   Hi,
> 
> Hello,
> 
>>      I am trying to run RHEL 6 as guest over XEN (RHEL 5.6 as host)
>>   hypervisor.
>>      It seems that RHEL 6 loads the paravirt drivers by default and thus HVM
>>   mode is not working.
>>      Any idea on this?
> 
> What do you mean with "HVM mode is not working" ?
> 
> PVHVM drivers (for HVM guests) are there to make disk/net performance a LOT 
> better!
> The default qemu-dm emulated ide controller and realtek nic are not very 
> efficient..
> 
>>      I saw somewhere that including xen_emul_unplug=never will help. Is
>>   there any other way it can be avoided?
>> 
> 
> You can also disable the xen platform pci device for that VM from dom0, 
> then the VM will not activate PVHVM drivers.
> 
> -- Pasi
> 


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