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aliguori6f338c32009-02-11 15:21:54 +00001/*
2 * QEMU device hotplug helpers
3 *
4 * Copyright (c) 2004 Fabrice Bellard
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
23 */
24
Peter Maydelld38ea872016-01-29 17:50:05 +000025#include "qemu/osdep.h"
Paolo Bonzini1559e0d2013-02-04 17:20:47 +010026#include "hw/boards.h"
Markus Armbrusterb9fe8a72014-10-07 13:59:09 +020027#include "sysemu/block-backend.h"
Paolo Bonzini9c17d612012-12-17 18:20:04 +010028#include "sysemu/blockdev.h"
Markus Armbruster452fcdb2018-02-01 12:18:39 +010029#include "qapi/qmp/qdict.h"
Markus Armbrusterc4f26c92018-10-17 10:26:57 +020030#include "qapi/error.h"
Paolo Bonzini1de7afc2012-12-17 18:20:00 +010031#include "qemu/config-file.h"
Markus Armbruster922a01a2018-02-01 12:18:46 +010032#include "qemu/option.h"
Paolo Bonzini9c17d612012-12-17 18:20:04 +010033#include "sysemu/sysemu.h"
Paolo Bonzini83c90892012-12-17 18:19:49 +010034#include "monitor/monitor.h"
Kevin Wolfabb21ac2016-02-23 17:33:24 +010035#include "block/block_int.h"
aliguori6f338c32009-02-11 15:21:54 +000036
Markus Armbrusterf51074c2015-02-26 17:21:13 +010037static DriveInfo *add_init_drive(const char *optstr)
aliguori6f338c32009-02-11 15:21:54 +000038{
Markus Armbrusterc4f26c92018-10-17 10:26:57 +020039 Error *err = NULL;
Gerd Hoffmann751c6a12009-07-22 16:42:57 +020040 DriveInfo *dinfo;
Gerd Hoffmann9dfd7c72009-07-22 16:43:04 +020041 QemuOpts *opts;
Marcel Apfelbaum0056ae22014-03-05 19:30:47 +020042 MachineClass *mc;
aliguori6f338c32009-02-11 15:21:54 +000043
Markus Armbruster2292dda2011-01-28 11:21:41 +010044 opts = drive_def(optstr);
Gerd Hoffmann9dfd7c72009-07-22 16:43:04 +020045 if (!opts)
Gerd Hoffmann751c6a12009-07-22 16:42:57 +020046 return NULL;
aliguori6f338c32009-02-11 15:21:54 +000047
Marcel Apfelbaum0056ae22014-03-05 19:30:47 +020048 mc = MACHINE_GET_CLASS(current_machine);
Markus Armbrusterc4f26c92018-10-17 10:26:57 +020049 dinfo = drive_new(opts, mc->block_default_type, &err);
Markus Armbrusterab638172019-04-08 17:30:03 +020050 if (err) {
Markus Armbrusterc4f26c92018-10-17 10:26:57 +020051 error_report_err(err);
Gerd Hoffmann9dfd7c72009-07-22 16:43:04 +020052 qemu_opts_del(opts);
Gerd Hoffmann751c6a12009-07-22 16:42:57 +020053 return NULL;
aliguori6f338c32009-02-11 15:21:54 +000054 }
55
Gerd Hoffmann751c6a12009-07-22 16:42:57 +020056 return dinfo;
aliguori6f338c32009-02-11 15:21:54 +000057}
Alexander Grafdd97aa82010-08-23 23:43:10 +020058
Markus Armbruster3e5a50d2015-02-06 13:55:43 +010059void hmp_drive_add(Monitor *mon, const QDict *qdict)
Alexander Grafdd97aa82010-08-23 23:43:10 +020060{
Alexander Grafdd97aa82010-08-23 23:43:10 +020061 DriveInfo *dinfo = NULL;
62 const char *opts = qdict_get_str(qdict, "opts");
Kevin Wolfabb21ac2016-02-23 17:33:24 +010063 bool node = qdict_get_try_bool(qdict, "node", false);
64
65 if (node) {
66 hmp_drive_add_node(mon, opts);
67 return;
68 }
Alexander Grafdd97aa82010-08-23 23:43:10 +020069
70 dinfo = add_init_drive(opts);
71 if (!dinfo) {
72 goto err;
73 }
Alexander Grafdd97aa82010-08-23 23:43:10 +020074
Markus Armbruster4dbd84e2012-11-22 15:16:36 +010075 switch (dinfo->type) {
Alexander Grafdd97aa82010-08-23 23:43:10 +020076 case IF_NONE:
77 monitor_printf(mon, "OK\n");
78 break;
79 default:
Markus Armbrusterf51074c2015-02-26 17:21:13 +010080 monitor_printf(mon, "Can't hot-add drive to type %d\n", dinfo->type);
81 goto err;
Alexander Grafdd97aa82010-08-23 23:43:10 +020082 }
83 return;
84
85err:
86 if (dinfo) {
Max Reitzefaa7c42016-03-16 19:54:38 +010087 BlockBackend *blk = blk_by_legacy_dinfo(dinfo);
88 monitor_remove_blk(blk);
89 blk_unref(blk);
Alexander Grafdd97aa82010-08-23 23:43:10 +020090 }
Alexander Grafdd97aa82010-08-23 23:43:10 +020091}