[Qemu-devel] [RFC 19/20] vfio/pci: Always set up MSI route before enabling vectors

[Eric Auger <eric.auger@redhat.com>]

As we enable the vectors, we shall have an MSI route setup.
The notification of the stage 1 binding is done on MSI
route setup.

Signed-off-by: Eric Auger <eric.auger@redhat.com>
---
 hw/vfio/pci.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/hw/vfio/pci.c b/hw/vfio/pci.c
index 056f3a887a..040a2f39f8 100644
--- a/hw/vfio/pci.c
+++ b/hw/vfio/pci.c
@@ -522,6 +522,7 @@ static int vfio_msix_vector_do_use(PCIDevice *pdev, unsigned int nr,
     if (vdev->nr_vectors < nr + 1) {
         vfio_disable_irqindex(&vdev->vbasedev, VFIO_PCI_MSIX_IRQ_INDEX);
         vdev->nr_vectors = nr + 1;
+        vfio_add_kvm_msi_virq(vdev, vector, nr, true);
         ret = vfio_enable_vectors(vdev, true);
         if (ret) {
             error_report("vfio: failed to enable vectors, %d", ret);
-- 
2.17.1