This series introduces and extends the IRQ bypass manager written by Alex and transforms irqfd into an IRQ bypass manager consumer. The producer part, in my case the VFIO platform driver will be introduced separately. That code should be usable by both ARM IRQ forwarding and Intel Posted Interrupts. The IRQ bypass manager enables to setup a negotiated link between an IRQ producer and an IRQ consumer (typically the VFIO driver and KVM irqfd). The series currently includes Alex's code which was sent my email. Its structure obvioulsy will adapt to Alex's will. Also the irq bypass manager gets compiled/linked on arm/arm64 along with KVM and VFIO platform driver. can be found at: https://git.linaro.org/people/eric.auger/linux.git/shortlog/refs/heads/v4.2-rc1-bypass-fwd-v2 Best Regards Eric History: v1 -> v2: - isolate the bypass manager and irqfd consumer in this series - take into account Paolo's comments and use container_of strategy and remove additional fields introduced in v1. - create kvm_irqfd.h - add unregistration in irqfd_shutdown v1: originally part of [RFC 00/17] ARM IRQ forward control based on IRQ bypass manager (https://lkml.org/lkml/2015/7/2/268) Eric Auger (6): KVM: arm/arm64: select IRQ_BYPASS_MANAGER VFIO: platform: select IRQ_BYPASS_MANAGER irq: bypass: Extend skeleton for ARM forwarding control KVM: create kvm_irqfd.h KVM: introduce kvm_arch functions for IRQ bypass KVM: eventfd: add irq bypass consumer management arch/arm/kvm/Kconfig | 1 + arch/arm64/kvm/Kconfig | 1 + drivers/vfio/platform/Kconfig | 1 + include/linux/irqbypass.h | 19 ++++++-- include/linux/kvm_host.h | 37 ++++++++++++++ include/linux/kvm_irqfd.h | 70 +++++++++++++++++++++++++++ kernel/irq/bypass.c | 44 +++++++++++++++-- virt/kvm/Kconfig | 3 ++ virt/kvm/eventfd.c | 109 +++++++++++++----------------------------- 9 files changed, 203 insertions(+), 82 deletions(-) create mode 100644 include/linux/kvm_irqfd.h -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
