sysbus: Make devices spawnable via -device

Now that we can properly map sysbus devices that haven't been connected to
something forcefully by C code, we can allow the -device command line option
to spawn them.

For machines that don't implement dynamic sysbus assignment in their board
files we add a new bool "has_dynamic_sysbus" to the machine class.
When that property is false (default), we bail out when we see dynamically
spawned sysbus devices, like we did before.

Signed-off-by: Alexander Graf <agraf@suse.de>

1 files changed, 6 insertions, 2 deletions

diff --git a/include/hw/boards.h b/include/hw/boards.h
index 99a172d652..e0a67903ef 100644
--- a/include/hw/boards.h
+++ b/include/hw/boards.h
@@ -36,7 +36,8 @@ struct QEMUMachine {
         use_sclp:1,
         no_floppy:1,
         no_cdrom:1,
-        no_sdcard:1;
+        no_sdcard:1,
+        has_dynamic_sysbus:1;
     int is_default;
     const char *default_machine_opts;
     const char *default_boot_order;
@@ -97,7 +98,8 @@ struct MachineClass {
         use_sclp:1,
         no_floppy:1,
         no_cdrom:1,
-        no_sdcard:1;
+        no_sdcard:1,
+        has_dynamic_sysbus:1;
     int is_default;
     const char *default_machine_opts;
     const char *default_boot_order;
@@ -115,6 +117,8 @@ struct MachineClass {
 struct MachineState {
     /*< private >*/
     Object parent_obj;
+    Notifier sysbus_notifier;
+
     /*< public >*/
 
     char *accel;