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Re: [Xen-devel] Can I use xc_map_foreign_range() on a paused domain?

  • To: Randy Thelen <rthelen@xxxxxxxxxx>, xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>
  • From: Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>
  • Date: Tue, 24 Oct 2006 20:24:32 +0100
  • Delivery-date: Tue, 24 Oct 2006 12:24:57 -0700
  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>
  • Thread-index: Acb3oggkRpq6/2OVEdusTQAKle7CWA==
  • Thread-topic: [Xen-devel] Can I use xc_map_foreign_range() on a paused domain?

On 24/10/06 7:33 pm, "Randy Thelen" <rthelen@xxxxxxxxxx> wrote:

> I've written a pretty simple program to peer into a guest domain and
> I'm getting an error.  I'm wondering what the explanation is and I'm
> hoping one of you can help.  Here's my program which I wrote in xen-
> unstable/tools/libxc/ as test.c and linked against the libxenctrl.a:

You specifically chose a page-table page. You cannot map that for write
access, even in domain 0. If you try to map it read-only, the mapping should

 -- Keir

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