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A few principles govern the operation of the store:
- Domains should only modify the contents of their own
directories.
- The setup protocol for a device channel should simply consist of
entering the configuration data into the store.
- The store should allow device discovery without requiring the
relevant device drivers to be loaded: a Xen ``bus'' should be
visible to probing code in the guest.
- The store should be usable for inter-tool communications,
allowing the tools themselves to be decomposed into a number of
smaller utilities, rather than a single monolithic entity. This
also facilitates the development of alternate user interfaces to the
same functionality.
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