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Old 07-15-2010, 03:42 PM
"David Dyer-Bennet"
 
Default Paravirtualized Centos 5.5 guest under Xen

The virtualization manual doesn't seem to say; does one have to do
anything to get the Centos 5.5 paravirtualization drivers installed? Or is
it sufficient to specify a paravirtualized guest, and the Centos install
will then detect that and load the right things?

And, is there a way to check in the guest that the right drivers are
loaded? What are they?

--
David Dyer-Bennet, dd-b@dd-b.net; http://dd-b.net/
Snapshots: http://dd-b.net/dd-b/SnapshotAlbum/data/
Photos: http://dd-b.net/photography/gallery/
Dragaera: http://dragaera.info

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Old 07-19-2010, 09:41 AM
Pasi Kärkkäinen
 
Default Paravirtualized Centos 5.5 guest under Xen

On Thu, Jul 15, 2010 at 10:42:44AM -0500, David Dyer-Bennet wrote:
> The virtualization manual doesn't seem to say; does one have to do
> anything to get the Centos 5.5 paravirtualization drivers installed? Or is
> it sufficient to specify a paravirtualized guest, and the Centos install
> will then detect that and load the right things?
>
> And, is there a way to check in the guest that the right drivers are
> loaded? What are they?
>

If you have a Xen PV (paravirtualized) guest, then it's already using
optimized/paravirtualized drivers. No additional drivers needed.
The Xen PV guest kernel is automatically aware of the hypervisor.

Additional PV drivers are needed for Xen HVM (fully virtualized) guests,
to bypass the Xen (Qemu) emulated IDE/NIC devices.

-- Pasi

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