commit 3c785e09a039a20517dd9aab9c32d121a19f9d38
author Damjan Marion <damarion@cisco.com> Mon May 08 18:37:54 2017 +0200
committer Damjan Marion <damarion@cisco.com> Mon May 08 18:37:54 2017 +0200
tree 07251e52a6f1418e48e42eb08dd5f2c4dd55a9bf
parent 7537e717d1ca6de0e33478bc50b9f7125f04c808

vlib: do not unbind devices already bound to vfio-pci

Change-Id: I739bed5b9d9504d18ee88206e29ebc4ba1b47d28
Signed-off-by: Damjan Marion <damarion@cisco.com>

src/vlib/pci/linux_pci.c

diff --git a/src/vlib/pci/linux_pci.c b/src/vlib/pci/linux_pci.c
index f9ee47a..d43361a 100644
--- a/src/vlib/pci/linux_pci.c
+++ b/src/vlib/pci/linux_pci.c
@@ -109,6 +109,11 @@
     goto done;
   vec_reset_length (s);
 
+  s = format (s, "%v/iommu_group%c", dev_dir_name, 0);
+  if (access ((char *) s, F_OK) == 0)
+    goto done;
+  vec_reset_length (s);
+
   /* walk trough all linux interfaces and if interface belonging to
      this device is founf check if interface is admin up  */
   dir = opendir ("/sys/class/net");