Option "split" does not available for kernel_irqchip flag in qemu-system-x86_64 On releases prior to Yakkety, the "split" option is not available for kernel_irqchip flag in qemu-system-x86_64. Yakkety: kernel_irqchip=on|off|split controls accelerated irqchip support (default=off) Xenial: kernel_irqchip=on|off controls accelerated irqchip support Trusty: kernel_irqchip=on|off controls accelerated irqchip support Precise: kernel_irqchip=on|off controls accelerated irqchip support It will be great to have this option, as we will need this for some kvm-unit-tests for SRU Hey Sam, just trying to see if this is still a valid issue? Any idea? [Expired for qemu (Ubuntu) because there has been no activity for 60 days.] The only release we have <= Yakkety is Trusty which is ESM and I don't believe we can SRU this change into QEMU anyways. The test gets skipped so it doesn't appear to be reporting a failure. Closing this bug now.