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





--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.

--
Alex Bligh

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