diff --git a/cloud/chv/api_client.py b/cloud/chv/api_client.py
index 0ad0365..754222f 100644
--- a/cloud/chv/api_client.py
+++ b/cloud/chv/api_client.py
@@ -33,6 +33,15 @@ def _read_header(sock):
     return header, buf[header_end + 4:]
 
 
+def _parse_status(header: str) -> int:
+    """从响应状态行取状态码（解析失败即 0，与
+    _parse_response 的口径一致）。"""
+    try:
+        return int(header.split()[1])
+    except (IndexError, ValueError):
+        return 0
+
+
 def _parse_content_length(header):
     """从响应头取 Content-Length：chunked 或无长度即拒绝。
 
@@ -102,7 +111,13 @@ def _unix_socket_api(socket_path, method, path, payload=None):
     body 能解析 JSON 时为 dict，否则为原文本。socket 不存在
     或连接失败时 raise RuntimeError（调用方据此判 api 超时
     /失败，不编造 200）。读满语义见 _read_header /
-    _parse_content_length / _read_body（P1-6，纯移动）。"""
+    _parse_content_length / _read_body（P1-6，纯移动）。
+    204/304 例外：按 HTTP 语义体长恒为 0，不要求
+    Content-Length、也不读体——CHV 的 vm.create/vm.boot
+    成功即回 204 且不带该头（2026-11-07 WSL 真机实测：
+    vmm.ping 200 带长度、vm.create 204 无长度），严格
+    校验会把合法成功当失败拒掉；其它状态仍严格（无长度
+    /截断/chunked 均拒绝）。"""
     if not os.path.exists(socket_path):
         raise RuntimeError("api socket 不存在：%s" % socket_path)
     body = b""
@@ -121,8 +136,12 @@ def _unix_socket_api(socket_path, method, path, payload=None):
         sock.connect(socket_path)
         sock.sendall(raw)
         header, body = _read_header(sock)
-        content_length = _parse_content_length(header)
-        body = _read_body(sock, body, content_length)
+        if _parse_status(header) in (204, 304):
+            # 体长恒为 0：不读体（keep-alive 下读会等到超时）。
+            body = b""
+        else:
+            content_length = _parse_content_length(header)
+            body = _read_body(sock, body, content_length)
     finally:
         sock.close()
     return _parse_response(header, body)
diff --git a/cloud/tests/test_chv_cover100.py b/cloud/tests/test_chv_cover100.py
index db7595e..9026131 100644
--- a/cloud/tests/test_chv_cover100.py
+++ b/cloud/tests/test_chv_cover100.py
@@ -103,6 +103,50 @@ class ApiClientCover100Test(unittest.TestCase):
         self.assertIn(b'"name": "vm1"', fake.sent)
         self.assertTrue(fake.closed)
 
+    def test_204_without_content_length_is_success(self):
+        # 真机实测（2026-11-07，CHV 54.0.0）：vm.create 成功回
+        # 204 No Content，且不带 Content-Length、无体——严格
+        # 校验会把合法成功当失败拒掉。204 按 HTTP 语义体长为
+        # 0，不读体（keep-alive 下读会等到超时；假 socket 的
+        # 剩余片为空，读体即报截断，本测试能抓住误读）。
+        fake = _FakeApiSocket([
+            b"HTTP/1.1 204 No Content\r\nServer: Cloud Hypervisor API"
+            b"\r\nConnection: keep-alive\r\n\r\n",
+        ])
+        with tempfile.TemporaryDirectory() as tmp:
+            sock_path = os.path.join(tmp, "chv.sock")
+            with open(sock_path, "w") as fh:
+                fh.write("x")
+            with mock.patch.object(api_client.socket, "socket",
+                                   lambda *a, **k: fake):
+                status, body = api_client._unix_socket_api(
+                    sock_path, "PUT", "/vm.create",
+                    payload={"cpus": {"boot_vcpus": 2}})
+        self.assertEqual(status, 204)
+        self.assertEqual(body, {})
+        self.assertTrue(fake.closed)
+
+    def test_200_without_content_length_still_rejected(self):
+        # 204 例外不得放宽其它状态：200 无长度仍拒绝。
+        fake = _FakeApiSocket([
+            b"HTTP/1.1 200 OK\r\nContent-Type: application/json"
+            b"\r\n\r\n{}",
+        ])
+        with tempfile.TemporaryDirectory() as tmp:
+            sock_path = os.path.join(tmp, "chv.sock")
+            with open(sock_path, "w") as fh:
+                fh.write("x")
+            with mock.patch.object(api_client.socket, "socket",
+                                   lambda *a, **k: fake):
+                with self.assertRaises(RuntimeError):
+                    api_client._unix_socket_api(
+                        sock_path, "GET", "/vmm.ping")
+
+    def test_parse_status(self):
+        self.assertEqual(api_client._parse_status("HTTP/1.1 204 foo"), 204)
+        self.assertEqual(api_client._parse_status("HTTP/1.1 OK"), 0)
+        self.assertEqual(api_client._parse_status(""), 0)
+
     def test_parse_status_non_numeric_is_zero(self):
         status, _body = api_client._parse_response(
             "HTTP/1.1 OK\r\n\r\n", b"{}")