diff --git a/sdk/src/main/java/org/zstack/sdk/UpdateVmInstancePciDeviceSpecRefAction.java b/sdk/src/main/java/org/zstack/sdk/UpdateVmInstancePciDeviceSpecRefAction.java
new file mode 100644
index 0000000000..8def583403
--- /dev/null
+++ b/sdk/src/main/java/org/zstack/sdk/UpdateVmInstancePciDeviceSpecRefAction.java
@@ -0,0 +1,107 @@
+package org.zstack.sdk;
+
+import java.util.HashMap;
+import java.util.Map;
+import org.zstack.sdk.*;
+
+public class UpdateVmInstancePciDeviceSpecRefAction extends AbstractAction {
+
+    private static final HashMap<String, Parameter> parameterMap = new HashMap<>();
+
+    private static final HashMap<String, Parameter> nonAPIParameterMap = new HashMap<>();
+
+    public static class Result {
+        public ErrorCode error;
+        public org.zstack.sdk.UpdateVmInstancePciDeviceSpecRefResult value;
+
+        public Result throwExceptionIfError() {
+            if (error != null) {
+                throw new ApiException(
+                    String.format("error[code: %s, description: %s, details: %s, globalErrorCode: %s]", error.code, error.description, error.details, error.globalErrorCode)    
+                );
+            }
+            
+            return this;
+        }
+    }
+
+    @Param(required = true, nonempty = false, nullElements = false, emptyString = true, noTrim = false)
+    public java.lang.String pciSpecUuid;
+
+    @Param(required = true, nonempty = false, nullElements = false, emptyString = true, noTrim = false)
+    public java.lang.String vmInstanceUuid;
+
+    @Param(required = true, nonempty = false, nullElements = false, emptyString = true, numberRange = {1L,100L}, noTrim = false)
+    public int pciDeviceNumber = 0;
+
+    @Param(required = false)
+    public java.util.List systemTags;
+
+    @Param(required = false)
+    public java.util.List userTags;
+
+    @Param(required = false)
+    public String sessionId;
+
+    @Param(required = false)
+    public String accessKeyId;
+
+    @Param(required = false)
+    public String accessKeySecret;
+
+    @Param(required = false)
+    public String requestIp;
+
+    @NonAPIParam
+    public long timeout = -1;
+
+    @NonAPIParam
+    public long pollingInterval = -1;
+
+
+    private Result makeResult(ApiResult res) {
+        Result ret = new Result();
+        if (res.error != null) {
+            ret.error = res.error;
+            return ret;
+        }
+        
+        org.zstack.sdk.UpdateVmInstancePciDeviceSpecRefResult value = res.getResult(org.zstack.sdk.UpdateVmInstancePciDeviceSpecRefResult.class);
+        ret.value = value == null ? new org.zstack.sdk.UpdateVmInstancePciDeviceSpecRefResult() : value; 
+
+        return ret;
+    }
+
+    public Result call() {
+        ApiResult res = ZSClient.call(this);
+        return makeResult(res);
+    }
+
+    public void call(final Completion<Result> completion) {
+        ZSClient.call(this, new InternalCompletion() {
+            @Override
+            public void complete(ApiResult res) {
+                completion.complete(makeResult(res));
+            }
+        });
+    }
+
+    protected Map<String, Parameter> getParameterMap() {
+        return parameterMap;
+    }
+
+    protected Map<String, Parameter> getNonAPIParameterMap() {
+        return nonAPIParameterMap;
+    }
+
+    protected RestInfo getRestInfo() {
+        RestInfo info = new RestInfo();
+        info.httpMethod = "PUT";
+        info.path = "/pci-device-specs/{pciSpecUuid}/vm-instances/{vmInstanceUuid}";
+        info.needSession = true;
+        info.needPoll = true;
+        info.parameterName = "params";
+        return info;
+    }
+
+}
diff --git a/sdk/src/main/java/org/zstack/sdk/UpdateVmInstancePciDeviceSpecRefResult.java b/sdk/src/main/java/org/zstack/sdk/UpdateVmInstancePciDeviceSpecRefResult.java
new file mode 100644
index 0000000000..cb771fa0a7
--- /dev/null
+++ b/sdk/src/main/java/org/zstack/sdk/UpdateVmInstancePciDeviceSpecRefResult.java
@@ -0,0 +1,14 @@
+package org.zstack.sdk;
+
+import org.zstack.sdk.VmInstancePciDeviceSpecRefInventory;
+
+public class UpdateVmInstancePciDeviceSpecRefResult {
+    public VmInstancePciDeviceSpecRefInventory inventory;
+    public void setInventory(VmInstancePciDeviceSpecRefInventory inventory) {
+        this.inventory = inventory;
+    }
+    public VmInstancePciDeviceSpecRefInventory getInventory() {
+        return this.inventory;
+    }
+
+}