Hello, Now that irqfd support (backend to guest interrupt) is already merged, this series solves the other part of the problem, i.e. ioeventfd (guest to backend interrupt).
More details inside the commits. -- Viresh Viresh Kumar (2): xen: evtchn: Allow shared registration of IRQ handers xen: privcmd: Add support for ioeventfd drivers/xen/Kconfig | 8 +- drivers/xen/events/events_base.c | 1 + drivers/xen/evtchn.c | 2 +- drivers/xen/privcmd.c | 385 +++++++++++++++++++++++++++++- include/uapi/xen/privcmd.h | 18 ++ include/xen/interface/hvm/ioreq.h | 51 ++++ 6 files changed, 458 insertions(+), 7 deletions(-) create mode 100644 include/xen/interface/hvm/ioreq.h -- 2.31.1.272.g89b43f80a514
