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Re: [Xen-devel] [PATCH WIP 3/6] xen/arm: get privilege status

To: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
From: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
Date: Thu, 12 Jul 2012 18:43:43 +0100
Cc: Ian Campbell <Ian.Campbell@xxxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>, "Tim \(Xen.org\)" <tim@xxxxxxx>, "linux-kernel@xxxxxxxxxxxxxxx" <linux-kernel@xxxxxxxxxxxxxxx>, Stefano Stabellini <Stefano.Stabellini@xxxxxxxxxxxxx>
Delivery-date: Thu, 12 Jul 2012 17:45:40 +0000
List-id: Xen developer discussion <xen-devel.lists.xen.org>

On Mon, 9 Jul 2012, Konrad Rzeszutek Wilk wrote:
> On Fri, Jun 22, 2012 at 05:14:42PM +0100, Stefano Stabellini wrote:
> > Use Xen features to figure out if we are privileged.
> 
> Is there a corresponding Xen c/s for the XNEFEAT_dom0?

Yes, that would be 23735
(http://xenbits.xensource.com/hg/xen-unstable.hg/rev/537918f518ee).

> Why can't the existing SIF_PRIVILIGED call work? Isn't that
> somethign that the hypervisor sets for the guest?

SIF_PRIVILIGED is in the start_info page that ARM guests don't have.

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References:
- Re: [Xen-devel] [PATCH WIP 3/6] xen/arm: get privilege status
  - From: Konrad Rzeszutek Wilk

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