From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Vrabel <david.vrabel@citrix.com>
Subject: [PATCH RFC 0/8] Xen: FIFO-based event channel ABI
Date: Tue, 19 Mar 2013 21:00:10 +0000
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Cc: Wei Liu <wei.liu2@citrix.com>, Keir Fraser <keir@xen.org>, David Vrabel <david.vrabel@citrix.com>, Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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This is an RFC of the FIFO-based event channel ABI described in this
design document:

http://xenbits.xen.org/people/dvrabel/event-channels-C.pdf

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.

David