The MSI/X shutdown path can gratuitously enable INTx, which is not something we want to happen if we're dealing with broken INTx device. Signed-off-by: Alex Williamson <alex.williamson@xxxxxxxxxx> --- drivers/vfio/pci/vfio_pci_intrs.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/vfio/pci/vfio_pci_intrs.c b/drivers/vfio/pci/vfio_pci_intrs.c index 152b438..aa23e9a 100644 --- a/drivers/vfio/pci/vfio_pci_intrs.c +++ b/drivers/vfio/pci/vfio_pci_intrs.c @@ -414,6 +414,13 @@ static void vfio_msi_disable(struct vfio_pci_device *vdev, bool msix) } else pci_disable_msi(pdev); + /* + * Both disable paths above use pci_intx_for_msi() to clear DisINTx + * via their shutdown paths. Restore for NoINTx devices. + */ + if (vdev->nointx) + pci_intx(pdev, 0); + vdev->irq_type = VFIO_PCI_NUM_IRQS; vdev->num_ctx = 0; kfree(vdev->ctx); -- 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
