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path: root/drivers/vdpa/vdpa_sim/vdpa_sim.c
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Diffstat (limited to 'drivers/vdpa/vdpa_sim/vdpa_sim.c')
-rw-r--r--drivers/vdpa/vdpa_sim/vdpa_sim.c12
1 files changed, 11 insertions, 1 deletions
diff --git a/drivers/vdpa/vdpa_sim/vdpa_sim.c b/drivers/vdpa/vdpa_sim/vdpa_sim.c
index 225b7f5d8be3..b071f0d842fb 100644
--- a/drivers/vdpa/vdpa_sim/vdpa_sim.c
+++ b/drivers/vdpa/vdpa_sim/vdpa_sim.c
@@ -18,6 +18,7 @@
#include <linux/vdpa.h>
#include <linux/vhost_iotlb.h>
#include <linux/iova.h>
+#include <uapi/linux/vdpa.h>
#include "vdpa_sim.h"
@@ -245,13 +246,22 @@ static const struct dma_map_ops vdpasim_dma_ops = {
static const struct vdpa_config_ops vdpasim_config_ops;
static const struct vdpa_config_ops vdpasim_batch_config_ops;
-struct vdpasim *vdpasim_create(struct vdpasim_dev_attr *dev_attr)
+struct vdpasim *vdpasim_create(struct vdpasim_dev_attr *dev_attr,
+ const struct vdpa_dev_set_config *config)
{
const struct vdpa_config_ops *ops;
struct vdpasim *vdpasim;
struct device *dev;
int i, ret = -ENOMEM;
+ if (config->mask & BIT_ULL(VDPA_ATTR_DEV_FEATURES)) {
+ if (config->device_features &
+ ~dev_attr->supported_features)
+ return ERR_PTR(-EINVAL);
+ dev_attr->supported_features =
+ config->device_features;
+ }
+
if (batch_mapping)
ops = &vdpasim_batch_config_ops;
else