[PATCH v9 4/9] virtio-iommu: set supported page size mask

[Bharat Bhushan]

Add optional interface to set page size mask.
Currently this is set global configuration and not
per endpoint.

Signed-off-by: Bharat Bhushan <address@hidden>
---
 include/hw/virtio/virtio-iommu.h | 1 +
 hw/virtio/virtio-iommu.c         | 9 +++++++++
 2 files changed, 10 insertions(+)

diff --git a/include/hw/virtio/virtio-iommu.h b/include/hw/virtio/virtio-iommu.h
index 6f67f1020a..4efa09610a 100644
--- a/include/hw/virtio/virtio-iommu.h
+++ b/include/hw/virtio/virtio-iommu.h
@@ -35,6 +35,7 @@ typedef struct IOMMUDevice {
     void         *viommu;
     PCIBus       *bus;
     int           devfn;
+    uint64_t      page_size_mask;
     IOMMUMemoryRegion  iommu_mr;
     AddressSpace  as;
 } IOMMUDevice;
diff --git a/hw/virtio/virtio-iommu.c b/hw/virtio/virtio-iommu.c
index 4cee8083bc..a28818202c 100644
--- a/hw/virtio/virtio-iommu.c
+++ b/hw/virtio/virtio-iommu.c
@@ -650,6 +650,14 @@ static gint int_cmp(gconstpointer a, gconstpointer b, 
gpointer user_data)
     return (ua > ub) - (ua < ub);
 }
 
+static void virtio_iommu_set_page_size_mask(IOMMUMemoryRegion *mr,
+                                            uint64_t page_size_mask)
+{
+    IOMMUDevice *sdev = container_of(mr, IOMMUDevice, iommu_mr);
+
+    sdev->page_size_mask = page_size_mask;
+}
+
 static void virtio_iommu_device_realize(DeviceState *dev, Error **errp)
 {
     VirtIODevice *vdev = VIRTIO_DEVICE(dev);
@@ -865,6 +873,7 @@ static void 
virtio_iommu_memory_region_class_init(ObjectClass *klass,
     IOMMUMemoryRegionClass *imrc = IOMMU_MEMORY_REGION_CLASS(klass);
 
     imrc->translate = virtio_iommu_translate;
+    imrc->iommu_set_page_size_mask = virtio_iommu_set_page_size_mask;
 }
 
 static const TypeInfo virtio_iommu_info = {
-- 
2.17.1