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[Xen-devel] [PATCH RFC 0/8] Xen: FIFO-based event channel ABI

This is an RFC of the FIFO-based event channel ABI described in this
design document:


Changes since draft B are:

- Queue tail is now private to Xen.

- Guest pages are specified by MFN in the hypercalls.

- Updated link/unlink algorithm to avoid races when adding an event to
  a queue that is becoming empty.

Patch 1-5 do some preparatory work for supporting alternate ABIs.

Patch 6 is a hack to allow it to build.

Patch 7-8 add the ABI and the implementation.  Patch 8 list some of
the known limitations with this RFC implementation.


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