qapi: Convert system_powerdown

Signed-off-by: Anthony Liguori <[email protected]>
Signed-off-by: Luiz Capitulino <[email protected]>
diff --git a/hmp-commands.hx b/hmp-commands.hx
index b2f5cd1..07b493c 100644
--- a/hmp-commands.hx
+++ b/hmp-commands.hx
@@ -492,8 +492,7 @@
         .args_type  = "",
         .params     = "",
         .help       = "send system power down event",
-        .user_print = monitor_user_noop,
-        .mhandler.cmd_new = do_system_powerdown,
+        .mhandler.cmd = hmp_system_powerdown,
     },
 
 STEXI
diff --git a/hmp.c b/hmp.c
index 24f30bc..34416fc 100644
--- a/hmp.c
+++ b/hmp.c
@@ -109,3 +109,8 @@
 {
     qmp_system_reset(NULL);
 }
+
+void hmp_system_powerdown(Monitor *mon, const QDict *qdict)
+{
+    qmp_system_powerdown(NULL);
+}
diff --git a/hmp.h b/hmp.h
index a49a6e6..92433cf 100644
--- a/hmp.h
+++ b/hmp.h
@@ -26,5 +26,6 @@
 void hmp_quit(Monitor *mon, const QDict *qdict);
 void hmp_stop(Monitor *mon, const QDict *qdict);
 void hmp_system_reset(Monitor *mon, const QDict *qdict);
+void hmp_system_powerdown(Monitor *mon, const QDict *qdict);
 
 #endif
diff --git a/qapi-schema.json b/qapi-schema.json
index 02de4b5..5922c4a 100644
--- a/qapi-schema.json
+++ b/qapi-schema.json
@@ -257,3 +257,17 @@
 # Since: 0.14.0
 ##
 { 'command': 'system_reset' }
+
+##
+# @system_powerdown:
+#
+# Requests that a guest perform a powerdown operation.
+#
+# Since: 0.14.0
+#
+# Notes: A guest may or may not respond to this command.  This command
+#        returning does not indicate that a guest has accepted the request or
+#        that it has shut down.  Many guests will respond to this command by
+#        prompting the user in some way.
+##
+{ 'command': 'system_powerdown' }
diff --git a/qmp.c b/qmp.c
index 51d9383..bf58b05 100644
--- a/qmp.c
+++ b/qmp.c
@@ -85,3 +85,8 @@
 {
     qemu_system_reset_request();
 }
+
+void qmp_system_powerdown(Error **erp)
+{
+    qemu_system_powerdown_request();
+}