qemu_storage: support the vdpa device

add vdpa device support to the related functions

Signed-off-by: Houqi (Nick) Zuo <[email protected]>

virttest/env_process.py

@@ -498,6 +498,8 @@ def postprocess_image(test, params, image_name, vm_process_status=None):
     restored, removed = (False, False)
     clone_master = params.get("clone_master", None)
     base_dir = params.get("images_base_dir", data_dir.get_data_dir())
+    if params.get("storage_type") == "vhost-vdpa":
+        return
     image = qemu_storage.QemuImg(params, base_dir, image_name)
 
     if params.get("img_check_failed") == "yes":

virttest/qemu_storage.py

@@ -187,6 +187,11 @@ def filename_to_file_opts(filename):
 
                 if matches['user'] is not None:
                     file_opts['username'] = matches['user']
+    # FIXME: vdpa is a customized protocol instead of a standard protocol.
+    elif filename.startswith("vdpa:"):
+        # filename[7:] mean: remove the prefix "vdpa://"
+        file_opts = {'driver': 'virtio-blk-vhost-vdpa',
+                     'path': filename[7:]}
     # FIXME: Judge the host device by the string starts with "/dev/".
     elif filename.startswith('/dev/'):
         file_opts = {'driver': 'host_device', 'filename': filename}
@@ -517,7 +522,12 @@ def __init__(self, params, root_dir, tag):
         :param params: Dictionary containing the test parameters.
         :param root_dir: Base directory for relative filenames.
         :param tag: Image tag defined in parameter images
+
+        :raise NotImplementedError: If the image type is not supported.
         """
+        if params.get("storage_type") == "vhost-vdpa":
+            raise NotImplementedError("Vdpa is NOT supported to handle "
+                                      "the image!")
         storage.QemuImg.__init__(self, params, root_dir, tag)
         self.image_cmd = utils_misc.get_qemu_img_binary(params)
         q_result = process.run(self.image_cmd + ' -h', ignore_status=True,