[Qemu-devel] [PATCH v9 10/14] hw/arm/smmuv3: Abort on vfio or vhost case

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

At the moment, the SMMUv3 does not support notification on
TLB invalidation. So let's abort as soon as such notifier gets
enabled.

Signed-off-by: Eric Auger <eric.auger@redhat.com>
---
 hw/arm/smmuv3.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/hw/arm/smmuv3.c b/hw/arm/smmuv3.c
index 384393f..5efe933 100644
--- a/hw/arm/smmuv3.c
+++ b/hw/arm/smmuv3.c
@@ -1074,12 +1074,23 @@ static void smmuv3_class_init(ObjectClass *klass, void *data)
     dc->realize = smmu_realize;
 }
 
+static void smmuv3_notify_flag_changed(IOMMUMemoryRegion *iommu,
+                                       IOMMUNotifierFlag old,
+                                       IOMMUNotifierFlag new)
+{
+    if (old == IOMMU_NOTIFIER_NONE) {
+        error_setg(&error_fatal,
+                   "SMMUV3: vhost and vfio notifiers not yet supported");
+    }
+}
+
 static void smmuv3_iommu_memory_region_class_init(ObjectClass *klass,
                                                   void *data)
 {
     IOMMUMemoryRegionClass *imrc = IOMMU_MEMORY_REGION_CLASS(klass);
 
     imrc->translate = smmuv3_translate;
+    imrc->notify_flag_changed = smmuv3_notify_flag_changed;
 }
 
 static const TypeInfo smmuv3_type_info = {
-- 
2.5.5