On 20-04-21, 12:00, Dave Jiang wrote:
> Remove interrupt masking and just let the hard irq handler keep
> firing for new events. This is less of a performance impact vs
> the MMIO readback inside the pci_msi_{mask,unmas}_irq(). Especially
> with a loaded system those flushes can be stuck behind large amounts
> of MMIO writes to flush. When guest kernel is running on top of VFIO
> mdev, mask/unmask causes a vmexit each time and is not desirable.
Applied, thanks
--
~Vinod
