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6f338c34
AL
1/*
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
d38ea87a 25#include "qemu/osdep.h"
1559e0d4
PB
26#include "hw/hw.h"
27#include "hw/boards.h"
b9fe8a7a 28#include "sysemu/block-backend.h"
9c17d615 29#include "sysemu/blockdev.h"
452fcdbc 30#include "qapi/qmp/qdict.h"
1de7afc9 31#include "qemu/config-file.h"
922a01a0 32#include "qemu/option.h"
9c17d615 33#include "sysemu/sysemu.h"
83c9089e 34#include "monitor/monitor.h"
abb21ac3 35#include "block/block_int.h"
6f338c34 36
f51074cd 37static DriveInfo *add_init_drive(const char *optstr)
6f338c34 38{
751c6a17 39 DriveInfo *dinfo;
9dfd7c7a 40 QemuOpts *opts;
0056ae24 41 MachineClass *mc;
6f338c34 42
2292ddae 43 opts = drive_def(optstr);
9dfd7c7a 44 if (!opts)
751c6a17 45 return NULL;
6f338c34 46
0056ae24 47 mc = MACHINE_GET_CLASS(current_machine);
60e19e06 48 dinfo = drive_new(opts, mc->block_default_type);
751c6a17 49 if (!dinfo) {
9dfd7c7a 50 qemu_opts_del(opts);
751c6a17 51 return NULL;
6f338c34
AL
52 }
53
751c6a17 54 return dinfo;
6f338c34 55}
dd97aa8a 56
3e5a50d6 57void hmp_drive_add(Monitor *mon, const QDict *qdict)
dd97aa8a 58{
dd97aa8a
AG
59 DriveInfo *dinfo = NULL;
60 const char *opts = qdict_get_str(qdict, "opts");
abb21ac3
KW
61 bool node = qdict_get_try_bool(qdict, "node", false);
62
63 if (node) {
64 hmp_drive_add_node(mon, opts);
65 return;
66 }
dd97aa8a
AG
67
68 dinfo = add_init_drive(opts);
69 if (!dinfo) {
70 goto err;
71 }
72 if (dinfo->devaddr) {
73 monitor_printf(mon, "Parameter addr not supported\n");
74 goto err;
75 }
dd97aa8a 76
4dbd84e2 77 switch (dinfo->type) {
dd97aa8a
AG
78 case IF_NONE:
79 monitor_printf(mon, "OK\n");
80 break;
81 default:
f51074cd
MA
82 monitor_printf(mon, "Can't hot-add drive to type %d\n", dinfo->type);
83 goto err;
dd97aa8a
AG
84 }
85 return;
86
87err:
88 if (dinfo) {
efaa7c4e
HR
89 BlockBackend *blk = blk_by_legacy_dinfo(dinfo);
90 monitor_remove_blk(blk);
91 blk_unref(blk);
dd97aa8a 92 }
dd97aa8a 93}