Andrew Morton wrote:

On Thu, 15 Feb 2007 18:24:49 -0800 Jeremy Fitzhardinge [off-list ref] wrote:

  

quoted

This patch series implements the Linux Xen guest in terms of the
paravirt-ops interface.
    

The whole patchset exports 67 symbols to modules.  How come?

Are they all needed?

Yep, pretty much.  They're all generally to do with Xen's virtual device
model, and are needed by modular frontend/backed drivers.  This series
only includes the basic block and network frontend devices, but there
are more waiting in the wings.

The breakdown, roughly, is:

    * event channel management
    * pseudophysical <-> machine addresses
    * grant-table management
    * xenbus, which includes
          o which has a filesystem-like namespace
          o the means to monitor changes in objects in the namespace
          o shared resource management
          o suspend/resume



    J