> From: Alex Williamson <alex.williamson@xxxxxxxxxx> > Sent: Wednesday, March 12, 2025 7:06 AM > > Some systems report INTx as not routed by setting pdev->irq to > IRQ_NOTCONNECTED, resulting in a -ENOTCONN error when trying to > setup eventfd signaling. Include this in the set of conditions > for which the PIN register is virtualized to zero. > > Additionally consolidate vfio_pci_get_irq_count() to use this > virtualized value in reporting INTx support via ioctl and sanity > checking ioctl paths since pdev->irq is re-used when the device > is in MSI mode. > > The combination of these results in both the config space of the > device and the ioctl interface behaving as if the device does not > support INTx. > > Signed-off-by: Alex Williamson <alex.williamson@xxxxxxxxxx> Reviewed-by: Kevin Tian <kevin.tian@xxxxxxxxx>
