Decoupling memory-backend and hugepage

Memory: fix memory-backend cannot change if there's no hugepage when vm_mem_backend is "memory-backend_file" Signed-off-by: Boqiao Fu <[email protected]>
avocado-framework · Jun 30, 2023 · 183b6a2 · 183b6a2
1 parent 6dbcb4b
commit 183b6a2
Showing 1 changed file with 9 additions and 2 deletions.
diff --git a/virttest/qemu_vm.py b/virttest/qemu_vm.py
@@ -1053,8 +1053,15 @@ def add_memorys(devices, params):
                 name = output[0]
                 backend_options = {}
                 backend_options["size_mem"] = "%sM" % params["mem"]
-                if params.get("vm_mem_backend"):
-                    backend_options["backend_mem"] = params.get("vm_mem_backend")
+                mem_backend = params.get("vm_mem_backend")
+                if mem_backend:
+                    backend_options["backend_mem"] = params["vm_mem_backend"]
+                if mem_backend == "memory-backend-file":
+                    if params.get("vm_mem_backend_path") == "":
+                        raise virt_vm.VMDeviceError("Expect vm_mem_backend_path")
+                    else:
+                        backend_options["mem-path_mem"] = params[
+                            "vm_mem_backend_path"]
                 if params.get("hugepage_path"):
                     backend_options["backend_mem"] = "memory-backend-file"
                     backend_options["mem-path_mem"] = params["hugepage_path"]