diff --git a/pkg/compute/models/isolated_devices.go b/pkg/compute/models/isolated_devices.go
index 0543a4f980..806593000d 100644
--- a/pkg/compute/models/isolated_devices.go
+++ b/pkg/compute/models/isolated_devices.go
@@ -547,6 +547,14 @@ func (self *SIsolatedDevice) RealDelete(ctx context.Context, userCred mcclient.T
 	return self.ClearSchedDescCache()
 }
 
+func (self *SIsolatedDevice) AllowPerformPurge(ctx context.Context, userCred mcclient.TokenCredential, query jsonutils.JSONObject, data jsonutils.JSONObject) bool {
+	return db.IsAdminAllowPerform(userCred, self, "purge")
+}
+
+func (self *SIsolatedDevice) PerformPurge(ctx context.Context, userCred mcclient.TokenCredential, query jsonutils.JSONObject, data jsonutils.JSONObject) (jsonutils.JSONObject, error) {
+	return nil, self.CustomizeDelete(ctx, userCred, query, data)
+}
+
 func (self *SIsolatedDevice) CustomizeDelete(ctx context.Context, userCred mcclient.TokenCredential, query jsonutils.JSONObject, data jsonutils.JSONObject) error {
 	if len(self.GuestId) > 0 {
 		if !jsonutils.QueryBoolean(data, "purge", false) {