[PATCH 2/4] vdpa_sim: implement get_iova_range bus operation

[Jason Wang <jasowang@redhat.com>]

This patch implements get_iova_range method for vdpa_sim. Since
vdpa_sim is a software device, simply advertise a [0ULL, ~0ULL] range.

Signed-off-by: Jason Wang <jasowang@redhat.com>
---
 drivers/vdpa/vdpa_sim/vdpa_sim.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/vdpa/vdpa_sim/vdpa_sim.c b/drivers/vdpa/vdpa_sim/vdpa_sim.c
index c7334cc65bb2..b3a6dc5b9984 100644
--- a/drivers/vdpa/vdpa_sim/vdpa_sim.c
+++ b/drivers/vdpa/vdpa_sim/vdpa_sim.c
@@ -524,6 +524,16 @@ static u32 vdpasim_get_generation(struct vdpa_device *vdpa)
 	return vdpasim->generation;
 }
 
+static struct vdpa_iova_range vdpasim_get_iova_range(struct vdpa_device *vdpa)
+{
+	struct vdpa_iova_range range;
+
+	range.start = 0ULL;
+	range.end = ~0ULL;
+
+	return range;
+}
+
 static int vdpasim_set_map(struct vdpa_device *vdpa,
 			   struct vhost_iotlb *iotlb)
 {
@@ -597,6 +607,7 @@ static const struct vdpa_config_ops vdpasim_net_config_ops = {
 	.get_config             = vdpasim_get_config,
 	.set_config             = vdpasim_set_config,
 	.get_generation         = vdpasim_get_generation,
+	.get_iova_range         = vdpasim_get_iova_range,
 	.set_map                = vdpasim_set_map,
 	.dma_map                = vdpasim_dma_map,
 	.dma_unmap              = vdpasim_dma_unmap,
-- 
2.20.1