Messages in this thread | | | Date | Sun, 23 Sep 2012 13:50:28 +0200 | From | Avi Kivity <> | Subject | Re: [PATCH v11] kvm: Add resampling irqfds for level triggered interrupts |
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On 09/21/2012 08:58 PM, Alex Williamson wrote: > To emulate level triggered interrupts, add a resample option to > KVM_IRQFD. When specified, a new resamplefd is provided that notifies > the user when the irqchip has been resampled by the VM. This may, for > instance, indicate an EOI. Also in this mode, posting of an interrupt > through an irqfd only asserts the interrupt. On resampling, the > interrupt is automatically de-asserted prior to user notification. > This enables level triggered interrupts to be posted and re-enabled > from vfio with no userspace intervention. > > All resampling irqfds can make use of a single irq source ID, so we > reserve a new one for this interface. >
Thanks, applied.
-- I have a truly marvellous patch that fixes the bug which this signature is too narrow to contain.
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