[Qemu-devel] [PATCH v2 0/3] hw/vfio/platform: irqfd setup changes

[Eric Auger]

This series fixes a bug related to irqfd setup for edge sensitive IRQs
and proposes a new startup sequence for irqfd signaling.

The current startup sequence brings some issues with respect to the
oncoming ARM IRQ forwarding support. The new startup sequence starts
either irqfd signaling or eventfd signaling and there is no risk the
IRQ is active nor masked when irqfd/IRQ forwarding is setup.

---

v1 -> v2:
- add "hw/vfio/platform: change interrupt/unmask fields into pointer"
- introduce vfio_irq_is_automasked helper function and for edge-sensitive
  IRQs, do not allocate/initialize unmask EventNotifier nor call
  vfio_set_resample_eventfd

Eric Auger (3):
  hw/vfio/platform: irqfd setup sequence update
  hw/vfio/platform: change interrupt/unmask fields into pointer
  hw/vfio/platform: do not set resamplefd for edge-sensitive IRQS

 hw/vfio/platform.c              | 116 ++++++++++++++++++++++++----------------
 include/hw/vfio/vfio-platform.h |   4 +-
 trace-events                    |   4 +-
 3 files changed, 75 insertions(+), 49 deletions(-)

-- 
1.8.3.2