commit c598d65aef4016b80608c93e2fba2c46d4c5e42e
author Zhenzhong Duan <zhenzhong.duan@intel.com> Mon Jul 22 15:07:12 2024 +0800
committer Cédric Le Goater <clg@redhat.com> Tue Jul 23 17:14:52 2024 +0200
tree aa1d568be3a24c8fc2c29cf0868a3acb20e75ad4
parent b07dcb7d4f116b157de5aaacfa9d58a496a9ed1d

vfio/ap: Don't initialize HOST_IOMMU_DEVICE with mdev

mdevs aren't "physical" devices and when asking for backing IOMMU info,
it fails the entire provisioning of the guest. Fix that by setting
vbasedev->mdev true so skipping HostIOMMUDevice initialization in the
presence of mdevs.

Fixes: 930589520128 ("vfio/iommufd: Implement HostIOMMUDeviceClass::realize() handler")
Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Joao Martins <joao.m.martins@oracle.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>

hw/vfio/ap.c

diff --git a/hw/vfio/ap.c b/hw/vfio/ap.c
index 0c4354e..71bf32b 100644
--- a/hw/vfio/ap.c
+++ b/hw/vfio/ap.c
@@ -230,6 +230,9 @@
      */
     vfio_device_init(vbasedev, VFIO_DEVICE_TYPE_AP, &vfio_ap_ops,
                      DEVICE(vapdev), true);
+
+    /* AP device is mdev type device */
+    vbasedev->mdev = true;
 }
 
 #ifdef CONFIG_IOMMUFD