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authorPeter Xu <peterx@redhat.com>2024-11-21 14:21:58 -0500
committerPhilippe Mathieu-Daudé <philmd@linaro.org>2025-01-09 18:16:24 +0100
commit41fc91772841c93c218df78d7e359cb2cd00dff5 (patch)
tree3338137939c1d32cdb3648582f8ec59e03dedd87
parent63450f322bf76faab7add3def89815d9198492dc (diff)
downloadfocaccia-qemu-41fc91772841c93c218df78d7e359cb2cd00dff5.tar.gz
focaccia-qemu-41fc91772841c93c218df78d7e359cb2cd00dff5.zip
qdev: Add machine_get_container()
Add a helper to fetch machine containers.  Add some sanity check around.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Peter Xu <peterx@redhat.com>
Message-ID: <20241121192202.4155849-10-peterx@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
-rw-r--r--hw/core/qdev.c11
-rw-r--r--include/hw/qdev-core.h10
2 files changed, 21 insertions, 0 deletions
diff --git a/hw/core/qdev.c b/hw/core/qdev.c
index 48bc9a7b9c..9abc4e8322 100644
--- a/hw/core/qdev.c
+++ b/hw/core/qdev.c
@@ -828,6 +828,17 @@ Object *qdev_get_machine(void)
     return dev;
 }
 
+Object *machine_get_container(const char *name)
+{
+    Object *container, *machine;
+
+    machine = qdev_get_machine();
+    container = object_resolve_path_component(machine, name);
+    assert(object_dynamic_cast(container, TYPE_CONTAINER));
+
+    return container;
+}
+
 char *qdev_get_human_name(DeviceState *dev)
 {
     g_assert(dev != NULL);
diff --git a/include/hw/qdev-core.h b/include/hw/qdev-core.h
index 50cbbf8121..89575e74e2 100644
--- a/include/hw/qdev-core.h
+++ b/include/hw/qdev-core.h
@@ -1034,6 +1034,16 @@ Object *qdev_get_machine(void);
 void qdev_create_fake_machine(void);
 
 /**
+ * machine_get_container:
+ * @name: The name of container to lookup
+ *
+ * Get a container of the machine (QOM path "/machine/NAME").
+ *
+ * Returns: the machine container object.
+ */
+Object *machine_get_container(const char *name);
+
+/**
  * qdev_get_human_name() - Return a human-readable name for a device
  * @dev: The device. Must be a valid and non-NULL pointer.
  *