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Re: [Xen-devel] Is it possible that Xen starts without Domain0

To: Hu Jia Yi <jyhu@xxxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject: Re: [Xen-devel] Is it possible that Xen starts without Domain0
From: Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>
Date: Fri, 07 Sep 2007 08:33:28 +0100
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On 7/9/07 05:08, "Hu Jia Yi" <jyhu@xxxxxxxxx> wrote:

> I have a question which may sound stupid.
> Is the dom0 mainly responsible for administration of other VMs?
> If a PC only needs running HVM and doesn't need any administration, is
> it possible that Xen doesn't start dom0 but setup VM environment and
> start-up HVM image?

dom0 manages I/O devices (network, disk, video, ...) and also runs support
services (driver backends, device emulation) for PV and HVM guests. A Xen
system will definitely not work without dom0.

 -- Keir

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