[PATCH v3 34/37] vfio: Allow the selection of a given iommu backend for platform ap and ccw

[Zhenzhong Duan]

Previously we added support to select iommu backend for vfio pci
device. Now we added others, E.g: platform, ap and ccw.

Signed-off-by: Zhenzhong Duan <zhenzhong.d...@intel.com>
Signed-off-by: Cédric Le Goater <c...@redhat.com>
---
 include/hw/vfio/vfio-platform.h | 1 +
 hw/vfio/ap.c                    | 5 +++++
 hw/vfio/ccw.c                   | 5 +++++
 hw/vfio/platform.c              | 4 ++++
 4 files changed, 15 insertions(+)

diff --git a/include/hw/vfio/vfio-platform.h b/include/hw/vfio/vfio-platform.h
index c414c3dffc..f57f4276f2 100644
--- a/include/hw/vfio/vfio-platform.h
+++ b/include/hw/vfio/vfio-platform.h
@@ -18,6 +18,7 @@
 
 #include "hw/sysbus.h"
 #include "hw/vfio/vfio-common.h"
+#include "sysemu/iommufd.h"
 #include "qemu/event_notifier.h"
 #include "qemu/queue.h"
 #include "qom/object.h"
diff --git a/hw/vfio/ap.c b/hw/vfio/ap.c
index bbf69ff55a..6a4186ccd3 100644
--- a/hw/vfio/ap.c
+++ b/hw/vfio/ap.c
@@ -15,6 +15,7 @@
 #include <sys/ioctl.h>
 #include "qapi/error.h"
 #include "hw/vfio/vfio-common.h"
+#include "sysemu/iommufd.h"
 #include "hw/s390x/ap-device.h"
 #include "qemu/error-report.h"
 #include "qemu/event_notifier.h"
@@ -204,6 +205,10 @@ static void vfio_ap_unrealize(DeviceState *dev)
 
 static Property vfio_ap_properties[] = {
     DEFINE_PROP_STRING("sysfsdev", VFIOAPDevice, vdev.sysfsdev),
+#ifdef CONFIG_IOMMUFD
+    DEFINE_PROP_LINK("iommufd", VFIOAPDevice, vdev.iommufd,
+                     TYPE_IOMMUFD_BACKEND, IOMMUFDBackend *),
+#endif
     DEFINE_PROP_END_OF_LIST(),
 };
 
diff --git a/hw/vfio/ccw.c b/hw/vfio/ccw.c
index d857bb8d0f..7695ede0fc 100644
--- a/hw/vfio/ccw.c
+++ b/hw/vfio/ccw.c
@@ -21,6 +21,7 @@
 
 #include "qapi/error.h"
 #include "hw/vfio/vfio-common.h"
+#include "sysemu/iommufd.h"
 #include "hw/s390x/s390-ccw.h"
 #include "hw/s390x/vfio-ccw.h"
 #include "hw/qdev-properties.h"
@@ -677,6 +678,10 @@ static void vfio_ccw_unrealize(DeviceState *dev)
 static Property vfio_ccw_properties[] = {
     DEFINE_PROP_STRING("sysfsdev", VFIOCCWDevice, vdev.sysfsdev),
     DEFINE_PROP_BOOL("force-orb-pfch", VFIOCCWDevice, force_orb_pfch, false),
+#ifdef CONFIG_IOMMUFD
+    DEFINE_PROP_LINK("iommufd", VFIOCCWDevice, vdev.iommufd,
+                     TYPE_IOMMUFD_BACKEND, IOMMUFDBackend *),
+#endif
     DEFINE_PROP_END_OF_LIST(),
 };
 
diff --git a/hw/vfio/platform.c b/hw/vfio/platform.c
index 8e3d4ac458..a1c25e0337 100644
--- a/hw/vfio/platform.c
+++ b/hw/vfio/platform.c
@@ -649,6 +649,10 @@ static Property vfio_platform_dev_properties[] = {
     DEFINE_PROP_UINT32("mmap-timeout-ms", VFIOPlatformDevice,
                        mmap_timeout, 1100),
     DEFINE_PROP_BOOL("x-irqfd", VFIOPlatformDevice, irqfd_allowed, true),
+#ifdef CONFIG_IOMMUFD
+    DEFINE_PROP_LINK("iommufd", VFIOPlatformDevice, vbasedev.iommufd,
+                     TYPE_IOMMUFD_BACKEND, IOMMUFDBackend *),
+#endif
     DEFINE_PROP_END_OF_LIST(),
 };
 
-- 
2.34.1