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[Xen-devel] [RFC PATCHv2 00/12] Linux: FIFO-based event channel ABI
This is an RFC of Linux guest-side implementation of the FIFO-based
event channel ABI described in this design document:
http://xenbits.xen.org/people/dvrabel/event-channels-D.pdf
Refer also to the Xen series.
Patch 1 is a obvious refactoring of common code.
Patch 2-6 prepare for supporting multiple ABIs.
Patch 7 adds the low-level evtchn_ops hooks.
Patch 8-9 add an additional hook for ABI-specific per-port setup
(used for expanding the event array as more event are bound).
Patch 10 allows many more event channels to be supported by altering
how the event channel to irq map is allocated. Note that other
factors limit the number of supported IRQs (IRQs is 8192 + 64 *
NR_CPUS).
Patch 11-12 add the ABI and the implementation. Main known
limitations are listed in patch 12.
David
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