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 | |
25 | #include "qemu/osdep.h" |
26 | #include "hw/boards.h" |
27 | #include "sysemu/block-backend.h" |
28 | #include "sysemu/blockdev.h" |
29 | #include "qapi/qmp/qdict.h" |
30 | #include "qapi/error.h" |
31 | #include "qemu/config-file.h" |
32 | #include "qemu/option.h" |
33 | #include "sysemu/sysemu.h" |
34 | #include "monitor/monitor.h" |
35 | #include "block/block_int.h" |
36 | |
37 | static DriveInfo *add_init_drive(const char *optstr) |
38 | { |
39 | Error *err = NULL; |
40 | DriveInfo *dinfo; |
41 | QemuOpts *opts; |
42 | MachineClass *mc; |
43 | |
44 | opts = drive_def(optstr); |
45 | if (!opts) |
46 | return NULL; |
47 | |
48 | mc = MACHINE_GET_CLASS(current_machine); |
49 | dinfo = drive_new(opts, mc->block_default_type, &err); |
50 | if (err) { |
51 | error_report_err(err); |
52 | qemu_opts_del(opts); |
53 | return NULL; |
54 | } |
55 | |
56 | return dinfo; |
57 | } |
58 | |
59 | void hmp_drive_add(Monitor *mon, const QDict *qdict) |
60 | { |
61 | DriveInfo *dinfo = NULL; |
62 | const char *opts = qdict_get_str(qdict, "opts" ); |
63 | bool node = qdict_get_try_bool(qdict, "node" , false); |
64 | |
65 | if (node) { |
66 | hmp_drive_add_node(mon, opts); |
67 | return; |
68 | } |
69 | |
70 | dinfo = add_init_drive(opts); |
71 | if (!dinfo) { |
72 | goto err; |
73 | } |
74 | |
75 | switch (dinfo->type) { |
76 | case IF_NONE: |
77 | monitor_printf(mon, "OK\n" ); |
78 | break; |
79 | default: |
80 | monitor_printf(mon, "Can't hot-add drive to type %d\n" , dinfo->type); |
81 | goto err; |
82 | } |
83 | return; |
84 | |
85 | err: |
86 | if (dinfo) { |
87 | BlockBackend *blk = blk_by_legacy_dinfo(dinfo); |
88 | monitor_remove_blk(blk); |
89 | blk_unref(blk); |
90 | } |
91 | } |
92 | |