kernel/include/xen/interface/event_channel.h, branch linux-4.3.y

xen/events: Add the hypervisor interface for the FIFO-based event channels

2014-01-06T15:07:52Z

Add the hypercall sub-ops and the structures for the shared data used in the FIFO-based event channel ABI. The design document for this new ABI is available here: http://xenbits.xen.org/people/dvrabel/event-channels-H.pdf In summary, events are reported using a per-domain shared event array of event words. Each event word has PENDING, LINKED and MASKED bits and a LINK field for pointing to the next event in the event queue. There are 16 event queues (with different priorities) per-VCPU. Key advantages of this new ABI include: - Support for over 100,000 events (2^17). - 16 different event priorities. - Improved fairness in event latency through the use of FIFOs. The ABI is available in Xen 4.4 and later. Signed-off-by: David Vrabel Reviewed-by: Konrad Rzeszutek Wilk Reviewed-by: Boris Ostrovsky

xen: Add EVTCHNOP_reset in Xen interface header files.

2012-12-18T02:58:05Z

Signed-off-by: Wei Liu Signed-off-by: Konrad Rzeszutek Wilk

xen: clean up asm/xen/hypervisor.h

2008-12-16T20:50:31Z

Impact: cleanup hypervisor.h had accumulated a lot of crud, including lots of spurious #includes. Clean it all up, and go around fixing up everything else accordingly. Signed-off-by: Jeremy Fitzhardinge Signed-off-by: Ingo Molnar

xen: Add Xen interface header files

2007-07-18T15:47:42Z

Add Xen interface header files. These are taken fairly directly from the Xen tree, but somewhat rearranged to suit the kernel's conventions. Define macros and inline functions for doing hypercalls into the hypervisor. Signed-off-by: Jeremy Fitzhardinge Signed-off-by: Ian Pratt Signed-off-by: Christian Limpach Signed-off-by: Chris Wright