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Re: [Xen-devel] question on xenbus priv in dom0

  • To: Anthony Liguori <aliguori@xxxxxxxxxx>
  • From: NAHieu <nahieu@xxxxxxxxx>
  • Date: Wed, 5 Oct 2005 03:01:38 +0900
  • Cc: xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>
  • Delivery-date: Tue, 04 Oct 2005 17:59:11 +0000
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  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>

On 10/5/05, Anthony Liguori <aliguori@xxxxxxxxxx> wrote:
> NAHieu wrote:
> >Hi,
> >
> >In domU, we can't use xenbus to access anything outside of the
> >domain's home. That means we are being restricted from reading/writing
> >to other domain's xenstore. That is perfectly fine, and nobody
> >complains here.
> >
> >But in dom0, do we have the exception? Since dom0 is trusted, I think
> >we can be allowed to access to all other domU's xenstore.
> >
> >Is that possible? If not, any good workaround solution?
> >
> >
> It should be possible to read from anywhere in the store.
> If you specify a path without a '/' in the beginning, it defaults to
> reading from the domain's home directory.  However, if you use a fully
> qualified path, you should be able to read anywhere.  If this doesn't
> work, it's a bug.

Excellent! Thank you, Anthony.


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