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Commit c93a97ee authored by Alex Williamson's avatar Alex Williamson
Browse files

vfio-pci: Disable INTx after MSI/X teardown 



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: default avatarAlex Williamson <alex.williamson@redhat.com>
parent ddf9dc0e

drivers/vfio/pci/vfio_pci_intrs.c

+7 −0
Original line number Diff line number Diff line
@@ -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);