qemu-patch-raspberry4/include/hw/vfio
Eric Auger fb5f816499 hw/vfio/platform: add irqfd support
This patch aims at optimizing IRQ handling using irqfd framework.

Instead of handling the eventfds on user-side they are handled on
kernel side using
- the KVM irqfd framework,
- the VFIO driver virqfd framework.

the virtual IRQ completion is trapped at interrupt controller
This removes the need for fast/slow path swap.

Overall this brings significant performance improvements.

Signed-off-by: Alvise Rigo <a.rigo@virtualopensystems.com>
Signed-off-by: Eric Auger <eric.auger@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Vikram Sethi <vikrams@codeaurora.org>
Acked-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2015-07-06 12:15:14 -06:00
..
vfio-calxeda-xgmac.h hw/vfio/platform: calxeda xgmac device 2015-06-09 08:17:17 -06:00
vfio-common.h hw/vfio/platform: vfio-platform skeleton 2015-06-08 09:25:25 -06:00
vfio-platform.h hw/vfio/platform: add irqfd support 2015-07-06 12:15:14 -06:00
vfio.h vfio: move hw/misc/vfio.c to hw/vfio/pci.c Move vfio.h into include/hw/vfio 2014-12-19 15:24:06 -07:00