This series intends to setup the VFIO helper to allow binding notifiers on different IRQs. Only MSIX IRQ type considered so far.
Stefan suggested me to publish earlier to discuss. If not too bad feedbacks I'll add some documentation in "qemu/vfio-helpers.h" before reposting. (NVMe block driver series will follow). Based-on: <20200812185014.18267-1-phi...@redhat.com> "block/nvme: Various cleanups required to use multiple queues" https://www.mail-archive.com/qemu-devel@nongnu.org/msg729395.html Supersedes: <20200811172845.16698-1-phi...@redhat.com> Philippe Mathieu-Daudé (7): util/vfio-helpers: Store eventfd using int32_t type util/vfio-helpers: Move IRQ 'type' from pci_init_irq() to open_pci() util/vfio-helpers: Introduce 'irq_count' variable util/vfio-helpers: Check the device allow up to 'irq_count' IRQs util/vfio-helpers: Support multiple eventfd util/vfio-helpers: Allow to set EventNotifier to particular IRQ util/vfio-helpers: Allow opening device requesting for multiple IRQs include/qemu/vfio-helpers.h | 5 +++-- block/nvme.c | 9 +++++--- util/vfio-helpers.c | 42 ++++++++++++++++++++++++++++++------- util/trace-events | 1 + 4 files changed, 45 insertions(+), 12 deletions(-) -- 2.21.3
