Re: [Xen-devel] PV drivers on HVM using Xen 4.1.1

[Ian Campbell <Ian.Campbell@xxxxxxxxxx>]

On Thu, 2011-10-27 at 15:11 +0100, Alex Bligh wrote:
> 
> --On 27 October 2011 14:54:48 +0100 Stefano Stabellini 
> <stefano.stabellini@xxxxxxxxxxxxx> wrote:
> 
> >>   disk = [ "tap:aio:/tmp/centos-pvd.img,xvda,w" ]
> >
> > If this is an HVM guest,
> 
> It is
> 
> > you should use hda here because you want to
> > make sure that an emulated IDE disk is created for you as well.
> 
> On Xen3.3 (and apparently on Xen 4) this happens anyway
> 
> > Also if /tmp/centos-pvd.img is a raw file, you might as well use file:
> > rather than tap:aio.
> 
> There seems to be some doubt (see Ian's message) about whether this
> changes the backend driver that is used. The final deployment application
> is tap:aio with a block device, so that's why we're doing this.

tap:aio on a raw block device is not a useful combination.

Ian.



_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel