From: Damien Hedde <damien.he...@greensocs.com>
Right now the allowance check for adding a sysbus device using
-device cli option (or device_add qmp command) is done well after
the device has been created. It is done during the machine init done
notifier: machine_init_notify() in hw/core/machine.c
This new function will allow us to do the check at the right time and
issue an error if it fails.
Also make device_is_dynamic_sysbus() use the new function.
Signed-off-by: Damien Hedde <damien.he...@greensocs.com>
Reviewed-by: Philippe Mathieu-Daudé <phi...@redhat.com>
Reviewed-by: Alistair Francis <alistair.fran...@wdc.com>
Acked-by: Eduardo Habkost <ehabk...@redhat.com>
Message-Id: <20211029142258.484907-2-damien.he...@greensocs.com>
Signed-off-by: Philippe Mathieu-Daudé <phi...@redhat.com>
---
include/hw/boards.h | 15 +++++++++++++++
hw/core/machine.c | 13 ++++++++++---
2 files changed, 25 insertions(+), 3 deletions(-)
diff --git a/include/hw/boards.h b/include/hw/boards.h
index e36fc7d8615..602993bd5ab 100644
--- a/include/hw/boards.h
+++ b/include/hw/boards.h
@@ -52,6 +52,21 @@ void smp_parse(MachineState *ms, SMPConfiguration *config,
Error **errp);
*/
void machine_class_allow_dynamic_sysbus_dev(MachineClass *mc, const char
*type);
+/**
+ * device_type_is_dynamic_sysbus: Check if type is an allowed sysbus device
+ * type for the machine class.
+ * @mc: Machine class
+ * @type: type to check (should be a subtype of TYPE_SYS_BUS_DEVICE)
+ *
+ * Returns: true if @type is a type in the machine's list of
+ * dynamically pluggable sysbus devices; otherwise false.
+ *
+ * Check if the QOM type @type is in the list of allowed sysbus device
+ * types (see machine_class_allowed_dynamic_sysbus_dev()).
+ * Note that if @type has a parent type in the list, it is allowed too.
+ */
+bool device_type_is_dynamic_sysbus(MachineClass *mc, const char *type);
+
/**
* device_is_dynamic_sysbus: test whether device is a dynamic sysbus device
* @mc: Machine class
diff --git a/hw/core/machine.c b/hw/core/machine.c
index dc15f5f9e5c..7c4004ac5a0 100644
--- a/hw/core/machine.c
+++ b/hw/core/machine.c
@@ -548,18 +548,25 @@ void machine_class_allow_dynamic_sysbus_dev(MachineClass
*mc, const char *type)
bool device_is_dynamic_sysbus(MachineClass *mc, DeviceState *dev)
{
- bool allowed = false;
- strList *wl;
Object *obj = OBJECT(dev);
if (!object_dynamic_cast(obj, TYPE_SYS_BUS_DEVICE)) {
return false;
}
+ return device_type_is_dynamic_sysbus(mc, object_get_typename(obj));
+}
+
+bool device_type_is_dynamic_sysbus(MachineClass *mc, const char *type)
+{
+ bool allowed = false;
+ strList *wl;
+ ObjectClass *klass = object_class_by_name(type);
+
for (wl = mc->allowed_dynamic_sysbus_devices;
!allowed && wl;
wl = wl->next) {
- allowed |= !!object_dynamic_cast(obj, wl->value);
+ allowed |= !!object_class_dynamic_cast(klass, wl->value);
}
return allowed;
--
2.31.1
