Virtual SMMUv3 requires physical nested stages for VFIO integration
and translates MSIs. So let's advertise those attributes.
Signed-off-by: Eric Auger <eric.au...@redhat.com>
---
v2 -> v3:
- also advertise MSI_TRANSLATE
---
hw/arm/smmuv3.c | 15 +++++++++++++++
1 file changed, 15 insertions(+)
diff --git a/hw/arm/smmuv3.c b/hw/arm/smmuv3.c
index fd8ec7860e..761d722395 100644
--- a/hw/arm/smmuv3.c
+++ b/hw/arm/smmuv3.c
@@ -1490,6 +1490,20 @@ static void smmuv3_notify_flag_changed(IOMMUMemoryRegion
*iommu,
}
}
+static int smmuv3_get_attr(IOMMUMemoryRegion *iommu,
+ enum IOMMUMemoryRegionAttr attr,
+ void *data)
+{
+ if (attr == IOMMU_ATTR_VFIO_NESTED) {
+ *(bool *) data = true;
+ return 0;
+ } else if (attr == IOMMU_ATTR_MSI_TRANSLATE) {
+ *(bool *) data = true;
+ return 0;
+ }
+ return -EINVAL;
+}
+
static void smmuv3_iommu_memory_region_class_init(ObjectClass *klass,
void *data)
{
@@ -1497,6 +1511,7 @@ static void
smmuv3_iommu_memory_region_class_init(ObjectClass *klass,
imrc->translate = smmuv3_translate;
imrc->notify_flag_changed = smmuv3_notify_flag_changed;
+ imrc->get_attr = smmuv3_get_attr;
}
static const TypeInfo smmuv3_type_info = {
--
2.20.1
