[v6] vSMMUv3/pSMMUv3 2 stage VFIO integration

[RFC v6 18/24] hw/arm/smmuv3: Advertise MSI_TRANSLATE attribute

Eric Auger posted 24 patches 5 years, 10 months ago

Diff against v1 v2 v3 v4 v4 v5 v7 v8 v9
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Maintainers: "Michael S. Tsirkin" <mst@redhat.com>, Eric Auger <eric.auger@redhat.com>, Paolo Bonzini <pbonzini@redhat.com>, Peter Maydell <peter.maydell@linaro.org>, Marcel Apfelbaum <marcel.apfelbaum@gmail.com>, Alex Williamson <alex.williamson@redhat.com>, Cornelia Huck <cohuck@redhat.com>

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[RFC v6 18/24] hw/arm/smmuv3: Advertise MSI_TRANSLATE attribute

Posted by Eric Auger 5 years, 10 months ago

The SMMUv3 has the peculiarity to translate MSI
transactionss. let's advertise the corresponding
attribute.

Signed-off-by: Eric Auger <eric.auger@redhat.com>

---
---
 hw/arm/smmuv3.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/hw/arm/smmuv3.c b/hw/arm/smmuv3.c
index e33eabd028..9bea5f65ae 100644
--- a/hw/arm/smmuv3.c
+++ b/hw/arm/smmuv3.c
@@ -1515,6 +1515,9 @@ static int smmuv3_get_attr(IOMMUMemoryRegion *iommu,
     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;
 }
-- 
2.20.1