hmp: Allow using a qdev id in block_set_io_throttle

[mirror_qemu.git] / hmp.c

diff --git a/hmp.c b/hmp.c
index 898e25f3e1bdaeae50586ca63ddf6737aee703d3..bdb340605c57bc41e3492aa074acb65e855f2568 100644 (file)
--- a/hmp.c
+++ b/hmp.c
@@ -1789,9 +1789,8 @@ void hmp_change(Monitor *mon, const QDict *qdict)
 void hmp_block_set_io_throttle(Monitor *mon, const QDict *qdict)
 {
     Error *err = NULL;
+    char *device = (char *) qdict_get_str(qdict, "device");
     BlockIOThrottle throttle = {
-        .has_device = true,
-        .device = (char *) qdict_get_str(qdict, "device"),
         .bps = qdict_get_int(qdict, "bps"),
         .bps_rd = qdict_get_int(qdict, "bps_rd"),
         .bps_wr = qdict_get_int(qdict, "bps_wr"),
@@ -1800,6 +1799,17 @@ void hmp_block_set_io_throttle(Monitor *mon, const QDict *qdict)
         .iops_wr = qdict_get_int(qdict, "iops_wr"),
     };
 
+    /* qmp_block_set_io_throttle has separate parameters for the
+     * (deprecated) block device name and the qdev ID but the HMP
+     * version has only one, so we must decide which one to pass. */
+    if (blk_by_name(device)) {
+        throttle.has_device = true;
+        throttle.device = device;
+    } else {
+        throttle.has_id = true;
+        throttle.id = device;
+    }
+
     qmp_block_set_io_throttle(&throttle, &err);
     hmp_handle_error(mon, &err);
 }