vfio/pci: Implement match ops

This currently serves the same purpose as the default implementation
but will be expanded for additional functionality.

Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>

diff --git a/drivers/vfio/pci/vfio_pci.c b/drivers/vfio/pci/vfio_pci.c
index 379a02c..2ec6c31 100644 (file)
--- a/drivers/vfio/pci/vfio_pci.c
+++ b/drivers/vfio/pci/vfio_pci.c
@@ -1278,6 +1278,13 @@ static void vfio_pci_request(void *device_data, unsigned int count)
        mutex_unlock(&vdev->igate);
 }
 
+static int vfio_pci_match(void *device_data, char *buf)
+{
+       struct vfio_pci_device *vdev = device_data;
+
+       return !strcmp(pci_name(vdev->pdev), buf);
+}
+
 static const struct vfio_device_ops vfio_pci_ops = {
        .name           = "vfio-pci",
        .open           = vfio_pci_open,
@@ -1287,6 +1294,7 @@ static const struct vfio_device_ops vfio_pci_ops = {
        .write          = vfio_pci_write,
        .mmap           = vfio_pci_mmap,
        .request        = vfio_pci_request,
+       .match          = vfio_pci_match,
 };
 
 static int vfio_pci_reflck_attach(struct vfio_pci_device *vdev);