Re: [Xen-users] How to use the PV driver for Linux HVM domU?

["Emre Erenoglu" <erenoglu@xxxxxxxxx>]

Hi,

On Wed, Oct 29, 2008 at 6:32 PM, Zhi Wang <xenlando@xxxxxxxxx> wrote:

I think virtio is supposed to support both Xen and KVM, in the future probably.

As far as I know,  virtio drivers are only for KVM and I use them daily for my KVM box.  For Xen HVM Domains. there are unmodified_drivers in the xen kernel source, if you're lucky enough to get them working in a recent kernel.

On Wed, Oct 29, 2008 at 1:59 AM, Pasi KÃrkkÃinen <pasik@xxxxxx> wrote:

On Tue, Oct 28, 2008 at 11:07:59PM -0400, Zhi Wang wrote:
> Hi,
> I am trying to enable the PV driver for Linux HVM. dom0 is CentOS5.2, domU
> is a hvm Ubuntu server
> 8.04. I rebuild the kernel with 2.6.27.3, with all the unnecessary drivers
> removed. I noticed that there
> is a virtio driver for network/block device/balloon. I build these drivers
> as modules, and try to enable
> the virtio_net driver. I played with several combinations of vif=[...] but
> still no luck. Either there is no
> ethernet controller or it is the realtek 8139c. I am wondering if any one
> has some experience to enable
>  PV driver for a Linux HVM domU. Thanks
>

I succeeded using Pardus distribution as a HVM DomU with the unmodified_drivers on top of Ubuntu dom0, but the distro itself was also based on 2.6.18 kernel. I didn't succeed with anything recent.  For it to work, your network type hall be "netfront" in your config file.

Emre
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