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| author | Eric Auger | 2015-07-06 20:15:14 +0200 |
|---|---|---|
| committer | Alex Williamson | 2015-07-06 20:15:14 +0200 |
| commit | fb5f816499a5184a1336d72db030b8419b523082 (patch) | |
| tree | 6458bdd3886c6e2c4c1922e6289e52fda2f318ca /scripts | |
| parent | kvm: some fixes to kvm_resamplefds_allowed (diff) | |
| download | qemu-fb5f816499a5184a1336d72db030b8419b523082.tar.gz qemu-fb5f816499a5184a1336d72db030b8419b523082.tar.xz qemu-fb5f816499a5184a1336d72db030b8419b523082.zip | |
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>
Diffstat (limited to 'scripts')
0 files changed, 0 insertions, 0 deletions