diff --git a/drivers/dma/idxd/sysfs.c b/drivers/dma/idxd/sysfs.c
index e4f35bdf252edaebcd3260d08580aca62708ba6c..a74e99cb055d82c31de82db5d89b3e5c9089eb06 100644
--- a/drivers/dma/idxd/sysfs.c
+++ b/drivers/dma/idxd/sysfs.c
@@ -1160,6 +1160,16 @@ static ssize_t op_cap_show(struct device *dev,
 }
 static DEVICE_ATTR_RO(op_cap);
 
+static ssize_t gen_cap_show(struct device *dev,
+			    struct device_attribute *attr, char *buf)
+{
+	struct idxd_device *idxd =
+		container_of(dev, struct idxd_device, conf_dev);
+
+	return sprintf(buf, "%#llx\n", idxd->hw.gen_cap.bits);
+}
+static DEVICE_ATTR_RO(gen_cap);
+
 static ssize_t configurable_show(struct device *dev,
 				 struct device_attribute *attr, char *buf)
 {
@@ -1297,6 +1307,7 @@ static struct attribute *idxd_device_attributes[] = {
 	&dev_attr_max_batch_size.attr,
 	&dev_attr_max_transfer_size.attr,
 	&dev_attr_op_cap.attr,
+	&dev_attr_gen_cap.attr,
 	&dev_attr_configurable.attr,
 	&dev_attr_clients.attr,
 	&dev_attr_state.attr,