Re: [Xen-devel] simple check for domU?

[Chris Bainbridge <chris.bainbridge@xxxxxxxxx>]

On 12/11/05, James Harper <james.harper@xxxxxxxxxxxxxxxx> wrote:
> >
> > If there's no easy and reliable way to do this maybe one should be
> added?
> >
>
> You probably need to clarify exactly what you are asking. If you are
> running a -xen kernel instead of -xen[0U], then it's the same kernel but
> differing in what privileges you have. In theory (I hope I'm right when
> I say this), it is possible to give a domU kernel some access to
> hardware, so even the line between a privileged or not kernel is a
> little blurred.

The Gentoo init scripts do some stuff that fails under a domU
(hwclock, ntp..). There's a function that tries to detect a if the
kernel is a xenU so as to not to do the things that fail, but it's
currently broken (http://bugs.gentoo.org/show_bug.cgi?id=107976). It
would be nice to have a simple way to fix it.

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