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1 | 666daa68 | Markus Armbruster | /*
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2 | 666daa68 | Markus Armbruster | * QEMU host block devices
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3 | 666daa68 | Markus Armbruster | *
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4 | 666daa68 | Markus Armbruster | * Copyright (c) 2003-2008 Fabrice Bellard
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5 | 666daa68 | Markus Armbruster | *
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6 | 666daa68 | Markus Armbruster | * This work is licensed under the terms of the GNU GPL, version 2 or
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7 | 666daa68 | Markus Armbruster | * later. See the COPYING file in the top-level directory.
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8 | 3618a094 | Markus Armbruster | *
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9 | 3618a094 | Markus Armbruster | * This file incorporates work covered by the following copyright and
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10 | 3618a094 | Markus Armbruster | * permission notice:
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11 | 3618a094 | Markus Armbruster | *
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12 | 3618a094 | Markus Armbruster | * Copyright (c) 2003-2008 Fabrice Bellard
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13 | 3618a094 | Markus Armbruster | *
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14 | 3618a094 | Markus Armbruster | * Permission is hereby granted, free of charge, to any person obtaining a copy
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15 | 3618a094 | Markus Armbruster | * of this software and associated documentation files (the "Software"), to deal
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16 | 3618a094 | Markus Armbruster | * in the Software without restriction, including without limitation the rights
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17 | 3618a094 | Markus Armbruster | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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18 | 3618a094 | Markus Armbruster | * copies of the Software, and to permit persons to whom the Software is
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19 | 3618a094 | Markus Armbruster | * furnished to do so, subject to the following conditions:
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20 | 3618a094 | Markus Armbruster | *
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21 | 3618a094 | Markus Armbruster | * The above copyright notice and this permission notice shall be included in
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22 | 3618a094 | Markus Armbruster | * all copies or substantial portions of the Software.
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23 | 3618a094 | Markus Armbruster | *
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24 | 3618a094 | Markus Armbruster | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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25 | 3618a094 | Markus Armbruster | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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26 | 3618a094 | Markus Armbruster | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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27 | 3618a094 | Markus Armbruster | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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28 | 3618a094 | Markus Armbruster | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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29 | 3618a094 | Markus Armbruster | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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30 | 3618a094 | Markus Armbruster | * THE SOFTWARE.
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31 | 666daa68 | Markus Armbruster | */
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32 | 666daa68 | Markus Armbruster | |
33 | 9c17d615 | Paolo Bonzini | #include "sysemu/blockdev.h" |
34 | 0d09e41a | Paolo Bonzini | #include "hw/block/block.h" |
35 | 737e150e | Paolo Bonzini | #include "block/blockjob.h" |
36 | 83c9089e | Paolo Bonzini | #include "monitor/monitor.h" |
37 | 7b1b5d19 | Paolo Bonzini | #include "qapi/qmp/qerror.h" |
38 | 1de7afc9 | Paolo Bonzini | #include "qemu/option.h" |
39 | 1de7afc9 | Paolo Bonzini | #include "qemu/config-file.h" |
40 | 7b1b5d19 | Paolo Bonzini | #include "qapi/qmp/types.h" |
41 | 9c17d615 | Paolo Bonzini | #include "sysemu/sysemu.h" |
42 | 737e150e | Paolo Bonzini | #include "block/block_int.h" |
43 | a4dea8a9 | Luiz Capitulino | #include "qmp-commands.h" |
44 | 12bd451f | Stefan Hajnoczi | #include "trace.h" |
45 | 9c17d615 | Paolo Bonzini | #include "sysemu/arch_init.h" |
46 | 666daa68 | Markus Armbruster | |
47 | c9b62a7e | Markus Armbruster | static QTAILQ_HEAD(drivelist, DriveInfo) drives = QTAILQ_HEAD_INITIALIZER(drives);
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48 | 0006383e | Kevin Wolf | extern QemuOptsList qemu_common_drive_opts;
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49 | 666daa68 | Markus Armbruster | |
50 | 1960966d | Markus Armbruster | static const char *const if_name[IF_COUNT] = { |
51 | 1960966d | Markus Armbruster | [IF_NONE] = "none",
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52 | 1960966d | Markus Armbruster | [IF_IDE] = "ide",
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53 | 1960966d | Markus Armbruster | [IF_SCSI] = "scsi",
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54 | 1960966d | Markus Armbruster | [IF_FLOPPY] = "floppy",
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55 | 1960966d | Markus Armbruster | [IF_PFLASH] = "pflash",
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56 | 1960966d | Markus Armbruster | [IF_MTD] = "mtd",
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57 | 1960966d | Markus Armbruster | [IF_SD] = "sd",
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58 | 1960966d | Markus Armbruster | [IF_VIRTIO] = "virtio",
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59 | 1960966d | Markus Armbruster | [IF_XEN] = "xen",
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60 | 1960966d | Markus Armbruster | }; |
61 | 1960966d | Markus Armbruster | |
62 | 1960966d | Markus Armbruster | static const int if_max_devs[IF_COUNT] = { |
63 | 27d6bf40 | Markus Armbruster | /*
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64 | 27d6bf40 | Markus Armbruster | * Do not change these numbers! They govern how drive option
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65 | 27d6bf40 | Markus Armbruster | * index maps to unit and bus. That mapping is ABI.
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66 | 27d6bf40 | Markus Armbruster | *
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67 | 27d6bf40 | Markus Armbruster | * All controllers used to imlement if=T drives need to support
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68 | 27d6bf40 | Markus Armbruster | * if_max_devs[T] units, for any T with if_max_devs[T] != 0.
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69 | 27d6bf40 | Markus Armbruster | * Otherwise, some index values map to "impossible" bus, unit
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70 | 27d6bf40 | Markus Armbruster | * values.
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71 | 27d6bf40 | Markus Armbruster | *
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72 | 27d6bf40 | Markus Armbruster | * For instance, if you change [IF_SCSI] to 255, -drive
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73 | 27d6bf40 | Markus Armbruster | * if=scsi,index=12 no longer means bus=1,unit=5, but
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74 | 27d6bf40 | Markus Armbruster | * bus=0,unit=12. With an lsi53c895a controller (7 units max),
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75 | 27d6bf40 | Markus Armbruster | * the drive can't be set up. Regression.
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76 | 27d6bf40 | Markus Armbruster | */
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77 | 27d6bf40 | Markus Armbruster | [IF_IDE] = 2,
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78 | 27d6bf40 | Markus Armbruster | [IF_SCSI] = 7,
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79 | 1960966d | Markus Armbruster | }; |
80 | 1960966d | Markus Armbruster | |
81 | 14bafc54 | Markus Armbruster | /*
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82 | 14bafc54 | Markus Armbruster | * We automatically delete the drive when a device using it gets
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83 | 14bafc54 | Markus Armbruster | * unplugged. Questionable feature, but we can't just drop it.
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84 | 14bafc54 | Markus Armbruster | * Device models call blockdev_mark_auto_del() to schedule the
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85 | 14bafc54 | Markus Armbruster | * automatic deletion, and generic qdev code calls blockdev_auto_del()
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86 | 14bafc54 | Markus Armbruster | * when deletion is actually safe.
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87 | 14bafc54 | Markus Armbruster | */
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88 | 14bafc54 | Markus Armbruster | void blockdev_mark_auto_del(BlockDriverState *bs)
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89 | 14bafc54 | Markus Armbruster | { |
90 | 14bafc54 | Markus Armbruster | DriveInfo *dinfo = drive_get_by_blockdev(bs); |
91 | 14bafc54 | Markus Armbruster | |
92 | 12bde0ee | Paolo Bonzini | if (bs->job) {
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93 | 12bde0ee | Paolo Bonzini | block_job_cancel(bs->job); |
94 | 12bde0ee | Paolo Bonzini | } |
95 | 0fc0f1fa | Ryan Harper | if (dinfo) {
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96 | 0fc0f1fa | Ryan Harper | dinfo->auto_del = 1;
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97 | 0fc0f1fa | Ryan Harper | } |
98 | 14bafc54 | Markus Armbruster | } |
99 | 14bafc54 | Markus Armbruster | |
100 | 14bafc54 | Markus Armbruster | void blockdev_auto_del(BlockDriverState *bs)
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101 | 14bafc54 | Markus Armbruster | { |
102 | 14bafc54 | Markus Armbruster | DriveInfo *dinfo = drive_get_by_blockdev(bs); |
103 | 14bafc54 | Markus Armbruster | |
104 | 0fc0f1fa | Ryan Harper | if (dinfo && dinfo->auto_del) {
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105 | 84fb3925 | Marcelo Tosatti | drive_put_ref(dinfo); |
106 | 14bafc54 | Markus Armbruster | } |
107 | 14bafc54 | Markus Armbruster | } |
108 | 14bafc54 | Markus Armbruster | |
109 | 505a7fb1 | Markus Armbruster | static int drive_index_to_bus_id(BlockInterfaceType type, int index) |
110 | 505a7fb1 | Markus Armbruster | { |
111 | 505a7fb1 | Markus Armbruster | int max_devs = if_max_devs[type];
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112 | 505a7fb1 | Markus Armbruster | return max_devs ? index / max_devs : 0; |
113 | 505a7fb1 | Markus Armbruster | } |
114 | 505a7fb1 | Markus Armbruster | |
115 | 505a7fb1 | Markus Armbruster | static int drive_index_to_unit_id(BlockInterfaceType type, int index) |
116 | 505a7fb1 | Markus Armbruster | { |
117 | 505a7fb1 | Markus Armbruster | int max_devs = if_max_devs[type];
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118 | 505a7fb1 | Markus Armbruster | return max_devs ? index % max_devs : index;
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119 | 505a7fb1 | Markus Armbruster | } |
120 | 505a7fb1 | Markus Armbruster | |
121 | 2292ddae | Markus Armbruster | QemuOpts *drive_def(const char *optstr) |
122 | 2292ddae | Markus Armbruster | { |
123 | 2292ddae | Markus Armbruster | return qemu_opts_parse(qemu_find_opts("drive"), optstr, 0); |
124 | 2292ddae | Markus Armbruster | } |
125 | 2292ddae | Markus Armbruster | |
126 | 2292ddae | Markus Armbruster | QemuOpts *drive_add(BlockInterfaceType type, int index, const char *file, |
127 | 5645b0f4 | Markus Armbruster | const char *optstr) |
128 | 666daa68 | Markus Armbruster | { |
129 | 666daa68 | Markus Armbruster | QemuOpts *opts; |
130 | 2292ddae | Markus Armbruster | char buf[32]; |
131 | 666daa68 | Markus Armbruster | |
132 | 2292ddae | Markus Armbruster | opts = drive_def(optstr); |
133 | 666daa68 | Markus Armbruster | if (!opts) {
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134 | 666daa68 | Markus Armbruster | return NULL; |
135 | 666daa68 | Markus Armbruster | } |
136 | 2292ddae | Markus Armbruster | if (type != IF_DEFAULT) {
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137 | 2292ddae | Markus Armbruster | qemu_opt_set(opts, "if", if_name[type]);
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138 | 2292ddae | Markus Armbruster | } |
139 | 2292ddae | Markus Armbruster | if (index >= 0) { |
140 | 2292ddae | Markus Armbruster | snprintf(buf, sizeof(buf), "%d", index); |
141 | 2292ddae | Markus Armbruster | qemu_opt_set(opts, "index", buf);
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142 | 2292ddae | Markus Armbruster | } |
143 | 666daa68 | Markus Armbruster | if (file)
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144 | 666daa68 | Markus Armbruster | qemu_opt_set(opts, "file", file);
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145 | 666daa68 | Markus Armbruster | return opts;
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146 | 666daa68 | Markus Armbruster | } |
147 | 666daa68 | Markus Armbruster | |
148 | 666daa68 | Markus Armbruster | DriveInfo *drive_get(BlockInterfaceType type, int bus, int unit) |
149 | 666daa68 | Markus Armbruster | { |
150 | 666daa68 | Markus Armbruster | DriveInfo *dinfo; |
151 | 666daa68 | Markus Armbruster | |
152 | 666daa68 | Markus Armbruster | /* seek interface, bus and unit */
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153 | 666daa68 | Markus Armbruster | |
154 | 666daa68 | Markus Armbruster | QTAILQ_FOREACH(dinfo, &drives, next) { |
155 | 666daa68 | Markus Armbruster | if (dinfo->type == type &&
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156 | 666daa68 | Markus Armbruster | dinfo->bus == bus && |
157 | 666daa68 | Markus Armbruster | dinfo->unit == unit) |
158 | 666daa68 | Markus Armbruster | return dinfo;
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159 | 666daa68 | Markus Armbruster | } |
160 | 666daa68 | Markus Armbruster | |
161 | 666daa68 | Markus Armbruster | return NULL; |
162 | 666daa68 | Markus Armbruster | } |
163 | 666daa68 | Markus Armbruster | |
164 | f1bd51ac | Markus Armbruster | DriveInfo *drive_get_by_index(BlockInterfaceType type, int index)
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165 | f1bd51ac | Markus Armbruster | { |
166 | f1bd51ac | Markus Armbruster | return drive_get(type,
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167 | f1bd51ac | Markus Armbruster | drive_index_to_bus_id(type, index), |
168 | f1bd51ac | Markus Armbruster | drive_index_to_unit_id(type, index)); |
169 | f1bd51ac | Markus Armbruster | } |
170 | f1bd51ac | Markus Armbruster | |
171 | 666daa68 | Markus Armbruster | int drive_get_max_bus(BlockInterfaceType type)
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172 | 666daa68 | Markus Armbruster | { |
173 | 666daa68 | Markus Armbruster | int max_bus;
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174 | 666daa68 | Markus Armbruster | DriveInfo *dinfo; |
175 | 666daa68 | Markus Armbruster | |
176 | 666daa68 | Markus Armbruster | max_bus = -1;
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177 | 666daa68 | Markus Armbruster | QTAILQ_FOREACH(dinfo, &drives, next) { |
178 | 666daa68 | Markus Armbruster | if(dinfo->type == type &&
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179 | 666daa68 | Markus Armbruster | dinfo->bus > max_bus) |
180 | 666daa68 | Markus Armbruster | max_bus = dinfo->bus; |
181 | 666daa68 | Markus Armbruster | } |
182 | 666daa68 | Markus Armbruster | return max_bus;
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183 | 666daa68 | Markus Armbruster | } |
184 | 666daa68 | Markus Armbruster | |
185 | 13839974 | Markus Armbruster | /* Get a block device. This should only be used for single-drive devices
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186 | 13839974 | Markus Armbruster | (e.g. SD/Floppy/MTD). Multi-disk devices (scsi/ide) should use the
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187 | 13839974 | Markus Armbruster | appropriate bus. */
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188 | 13839974 | Markus Armbruster | DriveInfo *drive_get_next(BlockInterfaceType type) |
189 | 13839974 | Markus Armbruster | { |
190 | 13839974 | Markus Armbruster | static int next_block_unit[IF_COUNT]; |
191 | 13839974 | Markus Armbruster | |
192 | 13839974 | Markus Armbruster | return drive_get(type, 0, next_block_unit[type]++); |
193 | 13839974 | Markus Armbruster | } |
194 | 13839974 | Markus Armbruster | |
195 | e4700e59 | Markus Armbruster | DriveInfo *drive_get_by_blockdev(BlockDriverState *bs) |
196 | 666daa68 | Markus Armbruster | { |
197 | 666daa68 | Markus Armbruster | DriveInfo *dinfo; |
198 | 666daa68 | Markus Armbruster | |
199 | 666daa68 | Markus Armbruster | QTAILQ_FOREACH(dinfo, &drives, next) { |
200 | e4700e59 | Markus Armbruster | if (dinfo->bdrv == bs) {
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201 | e4700e59 | Markus Armbruster | return dinfo;
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202 | e4700e59 | Markus Armbruster | } |
203 | 666daa68 | Markus Armbruster | } |
204 | e4700e59 | Markus Armbruster | return NULL; |
205 | 666daa68 | Markus Armbruster | } |
206 | 666daa68 | Markus Armbruster | |
207 | 666daa68 | Markus Armbruster | static void bdrv_format_print(void *opaque, const char *name) |
208 | 666daa68 | Markus Armbruster | { |
209 | 807105a7 | Markus Armbruster | error_printf(" %s", name);
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210 | 666daa68 | Markus Armbruster | } |
211 | 666daa68 | Markus Armbruster | |
212 | 84fb3925 | Marcelo Tosatti | static void drive_uninit(DriveInfo *dinfo) |
213 | 666daa68 | Markus Armbruster | { |
214 | 666daa68 | Markus Armbruster | qemu_opts_del(dinfo->opts); |
215 | 4f6fd349 | Fam Zheng | bdrv_unref(dinfo->bdrv); |
216 | 7267c094 | Anthony Liguori | g_free(dinfo->id); |
217 | 666daa68 | Markus Armbruster | QTAILQ_REMOVE(&drives, dinfo, next); |
218 | bb44619b | Kevin Wolf | g_free(dinfo->serial); |
219 | 7267c094 | Anthony Liguori | g_free(dinfo); |
220 | 666daa68 | Markus Armbruster | } |
221 | 666daa68 | Markus Armbruster | |
222 | 84fb3925 | Marcelo Tosatti | void drive_put_ref(DriveInfo *dinfo)
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223 | 84fb3925 | Marcelo Tosatti | { |
224 | 84fb3925 | Marcelo Tosatti | assert(dinfo->refcount); |
225 | 84fb3925 | Marcelo Tosatti | if (--dinfo->refcount == 0) { |
226 | 84fb3925 | Marcelo Tosatti | drive_uninit(dinfo); |
227 | 84fb3925 | Marcelo Tosatti | } |
228 | 84fb3925 | Marcelo Tosatti | } |
229 | 84fb3925 | Marcelo Tosatti | |
230 | 84fb3925 | Marcelo Tosatti | void drive_get_ref(DriveInfo *dinfo)
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231 | 84fb3925 | Marcelo Tosatti | { |
232 | 84fb3925 | Marcelo Tosatti | dinfo->refcount++; |
233 | 84fb3925 | Marcelo Tosatti | } |
234 | 84fb3925 | Marcelo Tosatti | |
235 | aa398a5c | Stefan Hajnoczi | typedef struct { |
236 | aa398a5c | Stefan Hajnoczi | QEMUBH *bh; |
237 | fa510ebf | Fam Zheng | BlockDriverState *bs; |
238 | fa510ebf | Fam Zheng | } BDRVPutRefBH; |
239 | aa398a5c | Stefan Hajnoczi | |
240 | fa510ebf | Fam Zheng | static void bdrv_put_ref_bh(void *opaque) |
241 | aa398a5c | Stefan Hajnoczi | { |
242 | fa510ebf | Fam Zheng | BDRVPutRefBH *s = opaque; |
243 | aa398a5c | Stefan Hajnoczi | |
244 | fa510ebf | Fam Zheng | bdrv_unref(s->bs); |
245 | aa398a5c | Stefan Hajnoczi | qemu_bh_delete(s->bh); |
246 | aa398a5c | Stefan Hajnoczi | g_free(s); |
247 | aa398a5c | Stefan Hajnoczi | } |
248 | aa398a5c | Stefan Hajnoczi | |
249 | aa398a5c | Stefan Hajnoczi | /*
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250 | fa510ebf | Fam Zheng | * Release a BDS reference in a BH
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251 | aa398a5c | Stefan Hajnoczi | *
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252 | fa510ebf | Fam Zheng | * It is not safe to use bdrv_unref() from a callback function when the callers
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253 | fa510ebf | Fam Zheng | * still need the BlockDriverState. In such cases we schedule a BH to release
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254 | fa510ebf | Fam Zheng | * the reference.
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255 | aa398a5c | Stefan Hajnoczi | */
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256 | fa510ebf | Fam Zheng | static void bdrv_put_ref_bh_schedule(BlockDriverState *bs) |
257 | aa398a5c | Stefan Hajnoczi | { |
258 | fa510ebf | Fam Zheng | BDRVPutRefBH *s; |
259 | aa398a5c | Stefan Hajnoczi | |
260 | fa510ebf | Fam Zheng | s = g_new(BDRVPutRefBH, 1);
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261 | fa510ebf | Fam Zheng | s->bh = qemu_bh_new(bdrv_put_ref_bh, s); |
262 | fa510ebf | Fam Zheng | s->bs = bs; |
263 | aa398a5c | Stefan Hajnoczi | qemu_bh_schedule(s->bh); |
264 | aa398a5c | Stefan Hajnoczi | } |
265 | aa398a5c | Stefan Hajnoczi | |
266 | 1ceee0d5 | Paolo Bonzini | static int parse_block_error_action(const char *buf, bool is_read) |
267 | 666daa68 | Markus Armbruster | { |
268 | 666daa68 | Markus Armbruster | if (!strcmp(buf, "ignore")) { |
269 | 92aa5c6d | Paolo Bonzini | return BLOCKDEV_ON_ERROR_IGNORE;
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270 | 666daa68 | Markus Armbruster | } else if (!is_read && !strcmp(buf, "enospc")) { |
271 | 92aa5c6d | Paolo Bonzini | return BLOCKDEV_ON_ERROR_ENOSPC;
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272 | 666daa68 | Markus Armbruster | } else if (!strcmp(buf, "stop")) { |
273 | 92aa5c6d | Paolo Bonzini | return BLOCKDEV_ON_ERROR_STOP;
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274 | 666daa68 | Markus Armbruster | } else if (!strcmp(buf, "report")) { |
275 | 92aa5c6d | Paolo Bonzini | return BLOCKDEV_ON_ERROR_REPORT;
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276 | 666daa68 | Markus Armbruster | } else {
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277 | 807105a7 | Markus Armbruster | error_report("'%s' invalid %s error action",
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278 | 807105a7 | Markus Armbruster | buf, is_read ? "read" : "write"); |
279 | 666daa68 | Markus Armbruster | return -1; |
280 | 666daa68 | Markus Armbruster | } |
281 | 666daa68 | Markus Armbruster | } |
282 | 666daa68 | Markus Armbruster | |
283 | cc0681c4 | Benoît Canet | static bool check_throttle_config(ThrottleConfig *cfg, Error **errp) |
284 | 0563e191 | Zhi Yong Wu | { |
285 | cc0681c4 | Benoît Canet | if (throttle_conflicting(cfg)) {
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286 | cc0681c4 | Benoît Canet | error_setg(errp, "bps/iops/max total values and read/write values"
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287 | cc0681c4 | Benoît Canet | " cannot be used at the same time");
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288 | 0563e191 | Zhi Yong Wu | return false; |
289 | 0563e191 | Zhi Yong Wu | } |
290 | 0563e191 | Zhi Yong Wu | |
291 | cc0681c4 | Benoît Canet | if (!throttle_is_valid(cfg)) {
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292 | cc0681c4 | Benoît Canet | error_setg(errp, "bps/iops/maxs values must be 0 or greater");
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293 | 7d81c141 | Stefan Hajnoczi | return false; |
294 | 7d81c141 | Stefan Hajnoczi | } |
295 | 7d81c141 | Stefan Hajnoczi | |
296 | 0563e191 | Zhi Yong Wu | return true; |
297 | 0563e191 | Zhi Yong Wu | } |
298 | 0563e191 | Zhi Yong Wu | |
299 | 57975222 | Kevin Wolf | static DriveInfo *blockdev_init(QemuOpts *all_opts,
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300 | 57975222 | Kevin Wolf | BlockInterfaceType block_default_type) |
301 | 666daa68 | Markus Armbruster | { |
302 | 666daa68 | Markus Armbruster | const char *buf; |
303 | 666daa68 | Markus Armbruster | const char *file = NULL; |
304 | 666daa68 | Markus Armbruster | const char *serial; |
305 | 666daa68 | Markus Armbruster | const char *mediastr = ""; |
306 | 666daa68 | Markus Armbruster | BlockInterfaceType type; |
307 | 666daa68 | Markus Armbruster | enum { MEDIA_DISK, MEDIA_CDROM } media;
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308 | 666daa68 | Markus Armbruster | int bus_id, unit_id;
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309 | 666daa68 | Markus Armbruster | int cyls, heads, secs, translation;
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310 | 666daa68 | Markus Armbruster | int max_devs;
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311 | 666daa68 | Markus Armbruster | int index;
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312 | 666daa68 | Markus Armbruster | int ro = 0; |
313 | 666daa68 | Markus Armbruster | int bdrv_flags = 0; |
314 | 666daa68 | Markus Armbruster | int on_read_error, on_write_error;
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315 | 666daa68 | Markus Armbruster | const char *devaddr; |
316 | 666daa68 | Markus Armbruster | DriveInfo *dinfo; |
317 | cc0681c4 | Benoît Canet | ThrottleConfig cfg; |
318 | 666daa68 | Markus Armbruster | int snapshot = 0; |
319 | fb0490f6 | Stefan Hajnoczi | bool copy_on_read;
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320 | 666daa68 | Markus Armbruster | int ret;
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321 | c546194f | Stefan Hajnoczi | Error *error = NULL;
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322 | 0006383e | Kevin Wolf | QemuOpts *opts; |
323 | 0006383e | Kevin Wolf | QDict *bs_opts; |
324 | 0006383e | Kevin Wolf | const char *id; |
325 | 74fe54f2 | Kevin Wolf | bool has_driver_specific_opts;
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326 | 6db5f5d6 | Mike Qiu | BlockDriver *drv = NULL;
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327 | 666daa68 | Markus Armbruster | |
328 | 666daa68 | Markus Armbruster | translation = BIOS_ATA_TRANSLATION_AUTO; |
329 | 666daa68 | Markus Armbruster | media = MEDIA_DISK; |
330 | 666daa68 | Markus Armbruster | |
331 | 0006383e | Kevin Wolf | /* Check common options by copying from all_opts to opts, all other options
|
332 | 0006383e | Kevin Wolf | * are stored in bs_opts. */
|
333 | 0006383e | Kevin Wolf | id = qemu_opts_id(all_opts); |
334 | 0006383e | Kevin Wolf | opts = qemu_opts_create(&qemu_common_drive_opts, id, 1, &error);
|
335 | 0006383e | Kevin Wolf | if (error_is_set(&error)) {
|
336 | 0006383e | Kevin Wolf | qerror_report_err(error); |
337 | 0006383e | Kevin Wolf | error_free(error); |
338 | 0006383e | Kevin Wolf | return NULL; |
339 | 0006383e | Kevin Wolf | } |
340 | 0006383e | Kevin Wolf | |
341 | 0006383e | Kevin Wolf | bs_opts = qdict_new(); |
342 | 0006383e | Kevin Wolf | qemu_opts_to_qdict(all_opts, bs_opts); |
343 | 0006383e | Kevin Wolf | qemu_opts_absorb_qdict(opts, bs_opts, &error); |
344 | 0006383e | Kevin Wolf | if (error_is_set(&error)) {
|
345 | 0006383e | Kevin Wolf | qerror_report_err(error); |
346 | 0006383e | Kevin Wolf | error_free(error); |
347 | 0006383e | Kevin Wolf | return NULL; |
348 | 0006383e | Kevin Wolf | } |
349 | 0006383e | Kevin Wolf | |
350 | 0006383e | Kevin Wolf | if (id) {
|
351 | 0006383e | Kevin Wolf | qdict_del(bs_opts, "id");
|
352 | 0006383e | Kevin Wolf | } |
353 | 0006383e | Kevin Wolf | |
354 | 74fe54f2 | Kevin Wolf | has_driver_specific_opts = !!qdict_size(bs_opts); |
355 | 74fe54f2 | Kevin Wolf | |
356 | 666daa68 | Markus Armbruster | /* extract parameters */
|
357 | 666daa68 | Markus Armbruster | bus_id = qemu_opt_get_number(opts, "bus", 0); |
358 | 666daa68 | Markus Armbruster | unit_id = qemu_opt_get_number(opts, "unit", -1); |
359 | 666daa68 | Markus Armbruster | index = qemu_opt_get_number(opts, "index", -1); |
360 | 666daa68 | Markus Armbruster | |
361 | 666daa68 | Markus Armbruster | cyls = qemu_opt_get_number(opts, "cyls", 0); |
362 | 666daa68 | Markus Armbruster | heads = qemu_opt_get_number(opts, "heads", 0); |
363 | 666daa68 | Markus Armbruster | secs = qemu_opt_get_number(opts, "secs", 0); |
364 | 666daa68 | Markus Armbruster | |
365 | 666daa68 | Markus Armbruster | snapshot = qemu_opt_get_bool(opts, "snapshot", 0); |
366 | 0f227a94 | Kevin Wolf | ro = qemu_opt_get_bool(opts, "read-only", 0); |
367 | fb0490f6 | Stefan Hajnoczi | copy_on_read = qemu_opt_get_bool(opts, "copy-on-read", false); |
368 | 666daa68 | Markus Armbruster | |
369 | 666daa68 | Markus Armbruster | file = qemu_opt_get(opts, "file");
|
370 | 666daa68 | Markus Armbruster | serial = qemu_opt_get(opts, "serial");
|
371 | 666daa68 | Markus Armbruster | |
372 | 666daa68 | Markus Armbruster | if ((buf = qemu_opt_get(opts, "if")) != NULL) { |
373 | 1960966d | Markus Armbruster | for (type = 0; type < IF_COUNT && strcmp(buf, if_name[type]); type++) |
374 | 1960966d | Markus Armbruster | ; |
375 | 1960966d | Markus Armbruster | if (type == IF_COUNT) {
|
376 | 807105a7 | Markus Armbruster | error_report("unsupported bus type '%s'", buf);
|
377 | 666daa68 | Markus Armbruster | return NULL; |
378 | 666daa68 | Markus Armbruster | } |
379 | 2d3999fe | Luiz Capitulino | } else {
|
380 | 2d0d2837 | Christian Borntraeger | type = block_default_type; |
381 | 666daa68 | Markus Armbruster | } |
382 | 2d3999fe | Luiz Capitulino | |
383 | 1960966d | Markus Armbruster | max_devs = if_max_devs[type]; |
384 | 666daa68 | Markus Armbruster | |
385 | 666daa68 | Markus Armbruster | if (cyls || heads || secs) {
|
386 | aaea3f36 | Markus Armbruster | if (cyls < 1) { |
387 | 807105a7 | Markus Armbruster | error_report("invalid physical cyls number");
|
388 | 666daa68 | Markus Armbruster | return NULL; |
389 | 666daa68 | Markus Armbruster | } |
390 | aaea3f36 | Markus Armbruster | if (heads < 1) { |
391 | 807105a7 | Markus Armbruster | error_report("invalid physical heads number");
|
392 | 666daa68 | Markus Armbruster | return NULL; |
393 | 666daa68 | Markus Armbruster | } |
394 | aaea3f36 | Markus Armbruster | if (secs < 1) { |
395 | 807105a7 | Markus Armbruster | error_report("invalid physical secs number");
|
396 | 666daa68 | Markus Armbruster | return NULL; |
397 | 666daa68 | Markus Armbruster | } |
398 | 666daa68 | Markus Armbruster | } |
399 | 666daa68 | Markus Armbruster | |
400 | 666daa68 | Markus Armbruster | if ((buf = qemu_opt_get(opts, "trans")) != NULL) { |
401 | 666daa68 | Markus Armbruster | if (!cyls) {
|
402 | e4080f9b | Markus Armbruster | error_report("'%s' trans must be used with cyls, heads and secs",
|
403 | 807105a7 | Markus Armbruster | buf); |
404 | 666daa68 | Markus Armbruster | return NULL; |
405 | 666daa68 | Markus Armbruster | } |
406 | 666daa68 | Markus Armbruster | if (!strcmp(buf, "none")) |
407 | 666daa68 | Markus Armbruster | translation = BIOS_ATA_TRANSLATION_NONE; |
408 | 666daa68 | Markus Armbruster | else if (!strcmp(buf, "lba")) |
409 | 666daa68 | Markus Armbruster | translation = BIOS_ATA_TRANSLATION_LBA; |
410 | 666daa68 | Markus Armbruster | else if (!strcmp(buf, "auto")) |
411 | 666daa68 | Markus Armbruster | translation = BIOS_ATA_TRANSLATION_AUTO; |
412 | 666daa68 | Markus Armbruster | else {
|
413 | 807105a7 | Markus Armbruster | error_report("'%s' invalid translation type", buf);
|
414 | 666daa68 | Markus Armbruster | return NULL; |
415 | 666daa68 | Markus Armbruster | } |
416 | 666daa68 | Markus Armbruster | } |
417 | 666daa68 | Markus Armbruster | |
418 | 666daa68 | Markus Armbruster | if ((buf = qemu_opt_get(opts, "media")) != NULL) { |
419 | 666daa68 | Markus Armbruster | if (!strcmp(buf, "disk")) { |
420 | 666daa68 | Markus Armbruster | media = MEDIA_DISK; |
421 | 666daa68 | Markus Armbruster | } else if (!strcmp(buf, "cdrom")) { |
422 | 666daa68 | Markus Armbruster | if (cyls || secs || heads) {
|
423 | e7ff8f0e | Luiz Capitulino | error_report("CHS can't be set with media=%s", buf);
|
424 | 666daa68 | Markus Armbruster | return NULL; |
425 | 666daa68 | Markus Armbruster | } |
426 | 666daa68 | Markus Armbruster | media = MEDIA_CDROM; |
427 | 666daa68 | Markus Armbruster | } else {
|
428 | 807105a7 | Markus Armbruster | error_report("'%s' invalid media", buf);
|
429 | 666daa68 | Markus Armbruster | return NULL; |
430 | 666daa68 | Markus Armbruster | } |
431 | 666daa68 | Markus Armbruster | } |
432 | 666daa68 | Markus Armbruster | |
433 | a9384aff | Paolo Bonzini | if ((buf = qemu_opt_get(opts, "discard")) != NULL) { |
434 | a9384aff | Paolo Bonzini | if (bdrv_parse_discard_flags(buf, &bdrv_flags) != 0) { |
435 | a9384aff | Paolo Bonzini | error_report("invalid discard option");
|
436 | a9384aff | Paolo Bonzini | return NULL; |
437 | a9384aff | Paolo Bonzini | } |
438 | a9384aff | Paolo Bonzini | } |
439 | a9384aff | Paolo Bonzini | |
440 | 29c4e2b5 | Kevin Wolf | if (qemu_opt_get_bool(opts, "cache.writeback", true)) { |
441 | 29c4e2b5 | Kevin Wolf | bdrv_flags |= BDRV_O_CACHE_WB; |
442 | 29c4e2b5 | Kevin Wolf | } |
443 | 29c4e2b5 | Kevin Wolf | if (qemu_opt_get_bool(opts, "cache.direct", false)) { |
444 | 29c4e2b5 | Kevin Wolf | bdrv_flags |= BDRV_O_NOCACHE; |
445 | 29c4e2b5 | Kevin Wolf | } |
446 | 29c4e2b5 | Kevin Wolf | if (qemu_opt_get_bool(opts, "cache.no-flush", true)) { |
447 | 29c4e2b5 | Kevin Wolf | bdrv_flags |= BDRV_O_NO_FLUSH; |
448 | 666daa68 | Markus Armbruster | } |
449 | 666daa68 | Markus Armbruster | |
450 | 666daa68 | Markus Armbruster | #ifdef CONFIG_LINUX_AIO
|
451 | 666daa68 | Markus Armbruster | if ((buf = qemu_opt_get(opts, "aio")) != NULL) { |
452 | 666daa68 | Markus Armbruster | if (!strcmp(buf, "native")) { |
453 | 666daa68 | Markus Armbruster | bdrv_flags |= BDRV_O_NATIVE_AIO; |
454 | 666daa68 | Markus Armbruster | } else if (!strcmp(buf, "threads")) { |
455 | 666daa68 | Markus Armbruster | /* this is the default */
|
456 | 666daa68 | Markus Armbruster | } else {
|
457 | 807105a7 | Markus Armbruster | error_report("invalid aio option");
|
458 | 666daa68 | Markus Armbruster | return NULL; |
459 | 666daa68 | Markus Armbruster | } |
460 | 666daa68 | Markus Armbruster | } |
461 | 666daa68 | Markus Armbruster | #endif
|
462 | 666daa68 | Markus Armbruster | |
463 | 666daa68 | Markus Armbruster | if ((buf = qemu_opt_get(opts, "format")) != NULL) { |
464 | c8057f95 | Peter Maydell | if (is_help_option(buf)) {
|
465 | c8057f95 | Peter Maydell | error_printf("Supported formats:");
|
466 | c8057f95 | Peter Maydell | bdrv_iterate_format(bdrv_format_print, NULL);
|
467 | c8057f95 | Peter Maydell | error_printf("\n");
|
468 | c8057f95 | Peter Maydell | return NULL; |
469 | 666daa68 | Markus Armbruster | } |
470 | 74fe54f2 | Kevin Wolf | |
471 | 6db5f5d6 | Mike Qiu | drv = bdrv_find_whitelisted_format(buf, ro); |
472 | 6db5f5d6 | Mike Qiu | if (!drv) {
|
473 | 7780d472 | Fam Zheng | if (!ro && bdrv_find_whitelisted_format(buf, !ro)) {
|
474 | 7780d472 | Fam Zheng | error_report("'%s' can be only used as read-only device.", buf);
|
475 | 7780d472 | Fam Zheng | } else {
|
476 | 7780d472 | Fam Zheng | error_report("'%s' invalid format", buf);
|
477 | 7780d472 | Fam Zheng | } |
478 | 6db5f5d6 | Mike Qiu | return NULL; |
479 | 6db5f5d6 | Mike Qiu | } |
480 | 666daa68 | Markus Armbruster | } |
481 | 666daa68 | Markus Armbruster | |
482 | 0563e191 | Zhi Yong Wu | /* disk I/O throttling */
|
483 | cc0681c4 | Benoît Canet | memset(&cfg, 0, sizeof(cfg)); |
484 | cc0681c4 | Benoît Canet | cfg.buckets[THROTTLE_BPS_TOTAL].avg = |
485 | 57975222 | Kevin Wolf | qemu_opt_get_number(opts, "throttling.bps-total", 0); |
486 | cc0681c4 | Benoît Canet | cfg.buckets[THROTTLE_BPS_READ].avg = |
487 | 57975222 | Kevin Wolf | qemu_opt_get_number(opts, "throttling.bps-read", 0); |
488 | cc0681c4 | Benoît Canet | cfg.buckets[THROTTLE_BPS_WRITE].avg = |
489 | 57975222 | Kevin Wolf | qemu_opt_get_number(opts, "throttling.bps-write", 0); |
490 | cc0681c4 | Benoît Canet | cfg.buckets[THROTTLE_OPS_TOTAL].avg = |
491 | 57975222 | Kevin Wolf | qemu_opt_get_number(opts, "throttling.iops-total", 0); |
492 | cc0681c4 | Benoît Canet | cfg.buckets[THROTTLE_OPS_READ].avg = |
493 | 57975222 | Kevin Wolf | qemu_opt_get_number(opts, "throttling.iops-read", 0); |
494 | cc0681c4 | Benoît Canet | cfg.buckets[THROTTLE_OPS_WRITE].avg = |
495 | 57975222 | Kevin Wolf | qemu_opt_get_number(opts, "throttling.iops-write", 0); |
496 | 0563e191 | Zhi Yong Wu | |
497 | 3e9fab69 | Benoît Canet | cfg.buckets[THROTTLE_BPS_TOTAL].max = |
498 | 3e9fab69 | Benoît Canet | qemu_opt_get_number(opts, "throttling.bps-total-max", 0); |
499 | 3e9fab69 | Benoît Canet | cfg.buckets[THROTTLE_BPS_READ].max = |
500 | 3e9fab69 | Benoît Canet | qemu_opt_get_number(opts, "throttling.bps-read-max", 0); |
501 | 3e9fab69 | Benoît Canet | cfg.buckets[THROTTLE_BPS_WRITE].max = |
502 | 3e9fab69 | Benoît Canet | qemu_opt_get_number(opts, "throttling.bps-write-max", 0); |
503 | 3e9fab69 | Benoît Canet | cfg.buckets[THROTTLE_OPS_TOTAL].max = |
504 | 3e9fab69 | Benoît Canet | qemu_opt_get_number(opts, "throttling.iops-total-max", 0); |
505 | 3e9fab69 | Benoît Canet | cfg.buckets[THROTTLE_OPS_READ].max = |
506 | 3e9fab69 | Benoît Canet | qemu_opt_get_number(opts, "throttling.iops-read-max", 0); |
507 | 3e9fab69 | Benoît Canet | cfg.buckets[THROTTLE_OPS_WRITE].max = |
508 | 3e9fab69 | Benoît Canet | qemu_opt_get_number(opts, "throttling.iops-write-max", 0); |
509 | cc0681c4 | Benoît Canet | |
510 | 2024c1df | Benoît Canet | cfg.op_size = qemu_opt_get_number(opts, "throttling.iops-size", 0); |
511 | cc0681c4 | Benoît Canet | |
512 | cc0681c4 | Benoît Canet | if (!check_throttle_config(&cfg, &error)) {
|
513 | c546194f | Stefan Hajnoczi | error_report("%s", error_get_pretty(error));
|
514 | c546194f | Stefan Hajnoczi | error_free(error); |
515 | 0563e191 | Zhi Yong Wu | return NULL; |
516 | 0563e191 | Zhi Yong Wu | } |
517 | 0563e191 | Zhi Yong Wu | |
518 | 0d92d17a | Jan Kiszka | if (qemu_opt_get(opts, "boot") != NULL) { |
519 | 0d92d17a | Jan Kiszka | fprintf(stderr, "qemu-kvm: boot=on|off is deprecated and will be "
|
520 | 0d92d17a | Jan Kiszka | "ignored. Future versions will reject this parameter. Please "
|
521 | 0d92d17a | Jan Kiszka | "update your scripts.\n");
|
522 | 0d92d17a | Jan Kiszka | } |
523 | 0d92d17a | Jan Kiszka | |
524 | 92aa5c6d | Paolo Bonzini | on_write_error = BLOCKDEV_ON_ERROR_ENOSPC; |
525 | 666daa68 | Markus Armbruster | if ((buf = qemu_opt_get(opts, "werror")) != NULL) { |
526 | 666daa68 | Markus Armbruster | if (type != IF_IDE && type != IF_SCSI && type != IF_VIRTIO && type != IF_NONE) {
|
527 | 807105a7 | Markus Armbruster | error_report("werror is not supported by this bus type");
|
528 | 666daa68 | Markus Armbruster | return NULL; |
529 | 666daa68 | Markus Armbruster | } |
530 | 666daa68 | Markus Armbruster | |
531 | 666daa68 | Markus Armbruster | on_write_error = parse_block_error_action(buf, 0);
|
532 | 666daa68 | Markus Armbruster | if (on_write_error < 0) { |
533 | 666daa68 | Markus Armbruster | return NULL; |
534 | 666daa68 | Markus Armbruster | } |
535 | 666daa68 | Markus Armbruster | } |
536 | 666daa68 | Markus Armbruster | |
537 | 92aa5c6d | Paolo Bonzini | on_read_error = BLOCKDEV_ON_ERROR_REPORT; |
538 | 666daa68 | Markus Armbruster | if ((buf = qemu_opt_get(opts, "rerror")) != NULL) { |
539 | 5dba48a8 | Kevin Wolf | if (type != IF_IDE && type != IF_VIRTIO && type != IF_SCSI && type != IF_NONE) {
|
540 | 807105a7 | Markus Armbruster | error_report("rerror is not supported by this bus type");
|
541 | 666daa68 | Markus Armbruster | return NULL; |
542 | 666daa68 | Markus Armbruster | } |
543 | 666daa68 | Markus Armbruster | |
544 | 666daa68 | Markus Armbruster | on_read_error = parse_block_error_action(buf, 1);
|
545 | 666daa68 | Markus Armbruster | if (on_read_error < 0) { |
546 | 666daa68 | Markus Armbruster | return NULL; |
547 | 666daa68 | Markus Armbruster | } |
548 | 666daa68 | Markus Armbruster | } |
549 | 666daa68 | Markus Armbruster | |
550 | 666daa68 | Markus Armbruster | if ((devaddr = qemu_opt_get(opts, "addr")) != NULL) { |
551 | 666daa68 | Markus Armbruster | if (type != IF_VIRTIO) {
|
552 | 807105a7 | Markus Armbruster | error_report("addr is not supported by this bus type");
|
553 | 666daa68 | Markus Armbruster | return NULL; |
554 | 666daa68 | Markus Armbruster | } |
555 | 666daa68 | Markus Armbruster | } |
556 | 666daa68 | Markus Armbruster | |
557 | 666daa68 | Markus Armbruster | /* compute bus and unit according index */
|
558 | 666daa68 | Markus Armbruster | |
559 | 666daa68 | Markus Armbruster | if (index != -1) { |
560 | 666daa68 | Markus Armbruster | if (bus_id != 0 || unit_id != -1) { |
561 | 807105a7 | Markus Armbruster | error_report("index cannot be used with bus and unit");
|
562 | 666daa68 | Markus Armbruster | return NULL; |
563 | 666daa68 | Markus Armbruster | } |
564 | 505a7fb1 | Markus Armbruster | bus_id = drive_index_to_bus_id(type, index); |
565 | 505a7fb1 | Markus Armbruster | unit_id = drive_index_to_unit_id(type, index); |
566 | 666daa68 | Markus Armbruster | } |
567 | 666daa68 | Markus Armbruster | |
568 | 666daa68 | Markus Armbruster | /* if user doesn't specify a unit_id,
|
569 | 666daa68 | Markus Armbruster | * try to find the first free
|
570 | 666daa68 | Markus Armbruster | */
|
571 | 666daa68 | Markus Armbruster | |
572 | 666daa68 | Markus Armbruster | if (unit_id == -1) { |
573 | 666daa68 | Markus Armbruster | unit_id = 0;
|
574 | 666daa68 | Markus Armbruster | while (drive_get(type, bus_id, unit_id) != NULL) { |
575 | 666daa68 | Markus Armbruster | unit_id++; |
576 | 666daa68 | Markus Armbruster | if (max_devs && unit_id >= max_devs) {
|
577 | 666daa68 | Markus Armbruster | unit_id -= max_devs; |
578 | 666daa68 | Markus Armbruster | bus_id++; |
579 | 666daa68 | Markus Armbruster | } |
580 | 666daa68 | Markus Armbruster | } |
581 | 666daa68 | Markus Armbruster | } |
582 | 666daa68 | Markus Armbruster | |
583 | 666daa68 | Markus Armbruster | /* check unit id */
|
584 | 666daa68 | Markus Armbruster | |
585 | 666daa68 | Markus Armbruster | if (max_devs && unit_id >= max_devs) {
|
586 | 807105a7 | Markus Armbruster | error_report("unit %d too big (max is %d)",
|
587 | 807105a7 | Markus Armbruster | unit_id, max_devs - 1);
|
588 | 666daa68 | Markus Armbruster | return NULL; |
589 | 666daa68 | Markus Armbruster | } |
590 | 666daa68 | Markus Armbruster | |
591 | 666daa68 | Markus Armbruster | /*
|
592 | 4e5d9b57 | Markus Armbruster | * catch multiple definitions
|
593 | 666daa68 | Markus Armbruster | */
|
594 | 666daa68 | Markus Armbruster | |
595 | 666daa68 | Markus Armbruster | if (drive_get(type, bus_id, unit_id) != NULL) { |
596 | 4e5d9b57 | Markus Armbruster | error_report("drive with bus=%d, unit=%d (index=%d) exists",
|
597 | 4e5d9b57 | Markus Armbruster | bus_id, unit_id, index); |
598 | 666daa68 | Markus Armbruster | return NULL; |
599 | 666daa68 | Markus Armbruster | } |
600 | 666daa68 | Markus Armbruster | |
601 | 666daa68 | Markus Armbruster | /* init */
|
602 | 666daa68 | Markus Armbruster | |
603 | 7267c094 | Anthony Liguori | dinfo = g_malloc0(sizeof(*dinfo));
|
604 | 666daa68 | Markus Armbruster | if ((buf = qemu_opts_id(opts)) != NULL) { |
605 | 7267c094 | Anthony Liguori | dinfo->id = g_strdup(buf); |
606 | 666daa68 | Markus Armbruster | } else {
|
607 | 666daa68 | Markus Armbruster | /* no id supplied -> create one */
|
608 | 7267c094 | Anthony Liguori | dinfo->id = g_malloc0(32);
|
609 | 666daa68 | Markus Armbruster | if (type == IF_IDE || type == IF_SCSI)
|
610 | 666daa68 | Markus Armbruster | mediastr = (media == MEDIA_CDROM) ? "-cd" : "-hd"; |
611 | 666daa68 | Markus Armbruster | if (max_devs)
|
612 | 666daa68 | Markus Armbruster | snprintf(dinfo->id, 32, "%s%i%s%i", |
613 | 79d21d5b | Markus Armbruster | if_name[type], bus_id, mediastr, unit_id); |
614 | 666daa68 | Markus Armbruster | else
|
615 | 666daa68 | Markus Armbruster | snprintf(dinfo->id, 32, "%s%s%i", |
616 | 79d21d5b | Markus Armbruster | if_name[type], mediastr, unit_id); |
617 | 666daa68 | Markus Armbruster | } |
618 | 666daa68 | Markus Armbruster | dinfo->bdrv = bdrv_new(dinfo->id); |
619 | 80dd1aae | Kevin Shanahan | dinfo->bdrv->open_flags = snapshot ? BDRV_O_SNAPSHOT : 0;
|
620 | 80dd1aae | Kevin Shanahan | dinfo->bdrv->read_only = ro; |
621 | 666daa68 | Markus Armbruster | dinfo->devaddr = devaddr; |
622 | 666daa68 | Markus Armbruster | dinfo->type = type; |
623 | 666daa68 | Markus Armbruster | dinfo->bus = bus_id; |
624 | 666daa68 | Markus Armbruster | dinfo->unit = unit_id; |
625 | 317bb412 | Markus Armbruster | dinfo->cyls = cyls; |
626 | 317bb412 | Markus Armbruster | dinfo->heads = heads; |
627 | 317bb412 | Markus Armbruster | dinfo->secs = secs; |
628 | 317bb412 | Markus Armbruster | dinfo->trans = translation; |
629 | 0006383e | Kevin Wolf | dinfo->opts = all_opts; |
630 | 84fb3925 | Marcelo Tosatti | dinfo->refcount = 1;
|
631 | bb44619b | Kevin Wolf | if (serial != NULL) { |
632 | bb44619b | Kevin Wolf | dinfo->serial = g_strdup(serial); |
633 | bb44619b | Kevin Wolf | } |
634 | 666daa68 | Markus Armbruster | QTAILQ_INSERT_TAIL(&drives, dinfo, next); |
635 | 666daa68 | Markus Armbruster | |
636 | abd7f68d | Markus Armbruster | bdrv_set_on_error(dinfo->bdrv, on_read_error, on_write_error); |
637 | abd7f68d | Markus Armbruster | |
638 | 0563e191 | Zhi Yong Wu | /* disk I/O throttling */
|
639 | cc0681c4 | Benoît Canet | if (throttle_enabled(&cfg)) {
|
640 | cc0681c4 | Benoît Canet | bdrv_io_limits_enable(dinfo->bdrv); |
641 | cc0681c4 | Benoît Canet | bdrv_set_io_limits(dinfo->bdrv, &cfg); |
642 | cc0681c4 | Benoît Canet | } |
643 | 0563e191 | Zhi Yong Wu | |
644 | 666daa68 | Markus Armbruster | switch(type) {
|
645 | 666daa68 | Markus Armbruster | case IF_IDE:
|
646 | 666daa68 | Markus Armbruster | case IF_SCSI:
|
647 | 666daa68 | Markus Armbruster | case IF_XEN:
|
648 | 666daa68 | Markus Armbruster | case IF_NONE:
|
649 | 2b584959 | Markus Armbruster | dinfo->media_cd = media == MEDIA_CDROM; |
650 | 666daa68 | Markus Armbruster | break;
|
651 | 666daa68 | Markus Armbruster | case IF_SD:
|
652 | 666daa68 | Markus Armbruster | case IF_FLOPPY:
|
653 | 666daa68 | Markus Armbruster | case IF_PFLASH:
|
654 | 666daa68 | Markus Armbruster | case IF_MTD:
|
655 | 666daa68 | Markus Armbruster | break;
|
656 | 666daa68 | Markus Armbruster | case IF_VIRTIO:
|
657 | 0006383e | Kevin Wolf | { |
658 | 666daa68 | Markus Armbruster | /* add virtio block device */
|
659 | 0006383e | Kevin Wolf | QemuOpts *devopts; |
660 | 0006383e | Kevin Wolf | devopts = qemu_opts_create_nofail(qemu_find_opts("device"));
|
661 | eeb9c1b5 | Anthony Liguori | if (arch_type == QEMU_ARCH_S390X) {
|
662 | 0006383e | Kevin Wolf | qemu_opt_set(devopts, "driver", "virtio-blk-s390"); |
663 | eeb9c1b5 | Anthony Liguori | } else {
|
664 | 0006383e | Kevin Wolf | qemu_opt_set(devopts, "driver", "virtio-blk-pci"); |
665 | eeb9c1b5 | Anthony Liguori | } |
666 | 0006383e | Kevin Wolf | qemu_opt_set(devopts, "drive", dinfo->id);
|
667 | 666daa68 | Markus Armbruster | if (devaddr)
|
668 | 0006383e | Kevin Wolf | qemu_opt_set(devopts, "addr", devaddr);
|
669 | 666daa68 | Markus Armbruster | break;
|
670 | 0006383e | Kevin Wolf | } |
671 | 2292ddae | Markus Armbruster | default:
|
672 | 666daa68 | Markus Armbruster | abort(); |
673 | 666daa68 | Markus Armbruster | } |
674 | dd5b0d71 | Markus Armbruster | if (!file || !*file) {
|
675 | 74fe54f2 | Kevin Wolf | if (has_driver_specific_opts) {
|
676 | c2ad1b0c | Kevin Wolf | file = NULL;
|
677 | c2ad1b0c | Kevin Wolf | } else {
|
678 | c2ad1b0c | Kevin Wolf | return dinfo;
|
679 | c2ad1b0c | Kevin Wolf | } |
680 | 666daa68 | Markus Armbruster | } |
681 | 666daa68 | Markus Armbruster | if (snapshot) {
|
682 | 666daa68 | Markus Armbruster | /* always use cache=unsafe with snapshot */
|
683 | 666daa68 | Markus Armbruster | bdrv_flags &= ~BDRV_O_CACHE_MASK; |
684 | 666daa68 | Markus Armbruster | bdrv_flags |= (BDRV_O_SNAPSHOT|BDRV_O_CACHE_WB|BDRV_O_NO_FLUSH); |
685 | 666daa68 | Markus Armbruster | } |
686 | 666daa68 | Markus Armbruster | |
687 | fb0490f6 | Stefan Hajnoczi | if (copy_on_read) {
|
688 | fb0490f6 | Stefan Hajnoczi | bdrv_flags |= BDRV_O_COPY_ON_READ; |
689 | fb0490f6 | Stefan Hajnoczi | } |
690 | fb0490f6 | Stefan Hajnoczi | |
691 | ed9d4205 | Benoît Canet | if (runstate_check(RUN_STATE_INMIGRATE)) {
|
692 | ed9d4205 | Benoît Canet | bdrv_flags |= BDRV_O_INCOMING; |
693 | ed9d4205 | Benoît Canet | } |
694 | ed9d4205 | Benoît Canet | |
695 | 666daa68 | Markus Armbruster | if (media == MEDIA_CDROM) {
|
696 | 666daa68 | Markus Armbruster | /* CDROM is fine for any interface, don't check. */
|
697 | 666daa68 | Markus Armbruster | ro = 1;
|
698 | 666daa68 | Markus Armbruster | } else if (ro == 1) { |
699 | 1e9eb78a | Jordan Justen | if (type != IF_SCSI && type != IF_VIRTIO && type != IF_FLOPPY &&
|
700 | 1e9eb78a | Jordan Justen | type != IF_NONE && type != IF_PFLASH) { |
701 | 0f227a94 | Kevin Wolf | error_report("read-only not supported by this bus type");
|
702 | a9ae2bff | Markus Armbruster | goto err;
|
703 | 666daa68 | Markus Armbruster | } |
704 | 666daa68 | Markus Armbruster | } |
705 | 666daa68 | Markus Armbruster | |
706 | 666daa68 | Markus Armbruster | bdrv_flags |= ro ? 0 : BDRV_O_RDWR;
|
707 | 666daa68 | Markus Armbruster | |
708 | 04d4abe9 | Stefan Hajnoczi | if (ro && copy_on_read) {
|
709 | 0f227a94 | Kevin Wolf | error_report("warning: disabling copy_on_read on read-only drive");
|
710 | 04d4abe9 | Stefan Hajnoczi | } |
711 | 04d4abe9 | Stefan Hajnoczi | |
712 | 74fe54f2 | Kevin Wolf | QINCREF(bs_opts); |
713 | 34b5d2c6 | Max Reitz | ret = bdrv_open(dinfo->bdrv, file, bs_opts, bdrv_flags, drv, &error); |
714 | 0006383e | Kevin Wolf | |
715 | 666daa68 | Markus Armbruster | if (ret < 0) { |
716 | 34b5d2c6 | Max Reitz | error_report("could not open disk image %s: %s",
|
717 | 34b5d2c6 | Max Reitz | file ?: dinfo->id, error_get_pretty(error)); |
718 | a9ae2bff | Markus Armbruster | goto err;
|
719 | 666daa68 | Markus Armbruster | } |
720 | 666daa68 | Markus Armbruster | |
721 | 666daa68 | Markus Armbruster | if (bdrv_key_required(dinfo->bdrv))
|
722 | 666daa68 | Markus Armbruster | autostart = 0;
|
723 | 0006383e | Kevin Wolf | |
724 | 74fe54f2 | Kevin Wolf | QDECREF(bs_opts); |
725 | 0006383e | Kevin Wolf | qemu_opts_del(opts); |
726 | 0006383e | Kevin Wolf | |
727 | 666daa68 | Markus Armbruster | return dinfo;
|
728 | a9ae2bff | Markus Armbruster | |
729 | a9ae2bff | Markus Armbruster | err:
|
730 | 0006383e | Kevin Wolf | qemu_opts_del(opts); |
731 | 0006383e | Kevin Wolf | QDECREF(bs_opts); |
732 | 4f6fd349 | Fam Zheng | bdrv_unref(dinfo->bdrv); |
733 | 7267c094 | Anthony Liguori | g_free(dinfo->id); |
734 | a9ae2bff | Markus Armbruster | QTAILQ_REMOVE(&drives, dinfo, next); |
735 | 7267c094 | Anthony Liguori | g_free(dinfo); |
736 | a9ae2bff | Markus Armbruster | return NULL; |
737 | 666daa68 | Markus Armbruster | } |
738 | 666daa68 | Markus Armbruster | |
739 | 57975222 | Kevin Wolf | static void qemu_opt_rename(QemuOpts *opts, const char *from, const char *to) |
740 | 57975222 | Kevin Wolf | { |
741 | 57975222 | Kevin Wolf | const char *value; |
742 | 57975222 | Kevin Wolf | |
743 | 57975222 | Kevin Wolf | value = qemu_opt_get(opts, from); |
744 | 57975222 | Kevin Wolf | if (value) {
|
745 | 57975222 | Kevin Wolf | qemu_opt_set(opts, to, value); |
746 | 57975222 | Kevin Wolf | qemu_opt_unset(opts, from); |
747 | 57975222 | Kevin Wolf | } |
748 | 57975222 | Kevin Wolf | } |
749 | 57975222 | Kevin Wolf | |
750 | 57975222 | Kevin Wolf | DriveInfo *drive_init(QemuOpts *all_opts, BlockInterfaceType block_default_type) |
751 | 57975222 | Kevin Wolf | { |
752 | 29c4e2b5 | Kevin Wolf | const char *value; |
753 | 29c4e2b5 | Kevin Wolf | |
754 | 57975222 | Kevin Wolf | /* Change legacy command line options into QMP ones */
|
755 | 57975222 | Kevin Wolf | qemu_opt_rename(all_opts, "iops", "throttling.iops-total"); |
756 | 57975222 | Kevin Wolf | qemu_opt_rename(all_opts, "iops_rd", "throttling.iops-read"); |
757 | 57975222 | Kevin Wolf | qemu_opt_rename(all_opts, "iops_wr", "throttling.iops-write"); |
758 | 57975222 | Kevin Wolf | |
759 | 57975222 | Kevin Wolf | qemu_opt_rename(all_opts, "bps", "throttling.bps-total"); |
760 | 57975222 | Kevin Wolf | qemu_opt_rename(all_opts, "bps_rd", "throttling.bps-read"); |
761 | 57975222 | Kevin Wolf | qemu_opt_rename(all_opts, "bps_wr", "throttling.bps-write"); |
762 | 57975222 | Kevin Wolf | |
763 | 3e9fab69 | Benoît Canet | qemu_opt_rename(all_opts, "iops_max", "throttling.iops-total-max"); |
764 | 3e9fab69 | Benoît Canet | qemu_opt_rename(all_opts, "iops_rd_max", "throttling.iops-read-max"); |
765 | 3e9fab69 | Benoît Canet | qemu_opt_rename(all_opts, "iops_wr_max", "throttling.iops-write-max"); |
766 | 3e9fab69 | Benoît Canet | |
767 | 3e9fab69 | Benoît Canet | qemu_opt_rename(all_opts, "bps_max", "throttling.bps-total-max"); |
768 | 3e9fab69 | Benoît Canet | qemu_opt_rename(all_opts, "bps_rd_max", "throttling.bps-read-max"); |
769 | 3e9fab69 | Benoît Canet | qemu_opt_rename(all_opts, "bps_wr_max", "throttling.bps-write-max"); |
770 | 3e9fab69 | Benoît Canet | |
771 | 2024c1df | Benoît Canet | qemu_opt_rename(all_opts, |
772 | 2024c1df | Benoît Canet | "iops_size", "throttling.iops-size"); |
773 | 2024c1df | Benoît Canet | |
774 | 0f227a94 | Kevin Wolf | qemu_opt_rename(all_opts, "readonly", "read-only"); |
775 | 0f227a94 | Kevin Wolf | |
776 | 29c4e2b5 | Kevin Wolf | value = qemu_opt_get(all_opts, "cache");
|
777 | 29c4e2b5 | Kevin Wolf | if (value) {
|
778 | 29c4e2b5 | Kevin Wolf | int flags = 0; |
779 | 29c4e2b5 | Kevin Wolf | |
780 | 29c4e2b5 | Kevin Wolf | if (bdrv_parse_cache_flags(value, &flags) != 0) { |
781 | 29c4e2b5 | Kevin Wolf | error_report("invalid cache option");
|
782 | 29c4e2b5 | Kevin Wolf | return NULL; |
783 | 29c4e2b5 | Kevin Wolf | } |
784 | 29c4e2b5 | Kevin Wolf | |
785 | 29c4e2b5 | Kevin Wolf | /* Specific options take precedence */
|
786 | 29c4e2b5 | Kevin Wolf | if (!qemu_opt_get(all_opts, "cache.writeback")) { |
787 | 29c4e2b5 | Kevin Wolf | qemu_opt_set_bool(all_opts, "cache.writeback",
|
788 | 29c4e2b5 | Kevin Wolf | !!(flags & BDRV_O_CACHE_WB)); |
789 | 29c4e2b5 | Kevin Wolf | } |
790 | 29c4e2b5 | Kevin Wolf | if (!qemu_opt_get(all_opts, "cache.direct")) { |
791 | 29c4e2b5 | Kevin Wolf | qemu_opt_set_bool(all_opts, "cache.direct",
|
792 | 29c4e2b5 | Kevin Wolf | !!(flags & BDRV_O_NOCACHE)); |
793 | 29c4e2b5 | Kevin Wolf | } |
794 | 29c4e2b5 | Kevin Wolf | if (!qemu_opt_get(all_opts, "cache.no-flush")) { |
795 | 29c4e2b5 | Kevin Wolf | qemu_opt_set_bool(all_opts, "cache.no-flush",
|
796 | 29c4e2b5 | Kevin Wolf | !!(flags & BDRV_O_NO_FLUSH)); |
797 | 29c4e2b5 | Kevin Wolf | } |
798 | 29c4e2b5 | Kevin Wolf | qemu_opt_unset(all_opts, "cache");
|
799 | 29c4e2b5 | Kevin Wolf | } |
800 | 29c4e2b5 | Kevin Wolf | |
801 | 57975222 | Kevin Wolf | return blockdev_init(all_opts, block_default_type);
|
802 | 57975222 | Kevin Wolf | } |
803 | 57975222 | Kevin Wolf | |
804 | 666daa68 | Markus Armbruster | void do_commit(Monitor *mon, const QDict *qdict) |
805 | 666daa68 | Markus Armbruster | { |
806 | 666daa68 | Markus Armbruster | const char *device = qdict_get_str(qdict, "device"); |
807 | 6ab4b5ab | Markus Armbruster | BlockDriverState *bs; |
808 | e8877497 | Stefan Hajnoczi | int ret;
|
809 | 666daa68 | Markus Armbruster | |
810 | 6ab4b5ab | Markus Armbruster | if (!strcmp(device, "all")) { |
811 | e8877497 | Stefan Hajnoczi | ret = bdrv_commit_all(); |
812 | 6ab4b5ab | Markus Armbruster | } else {
|
813 | 6ab4b5ab | Markus Armbruster | bs = bdrv_find(device); |
814 | ac59eb95 | Markus Armbruster | if (!bs) {
|
815 | 58513bde | Jeff Cody | monitor_printf(mon, "Device '%s' not found\n", device);
|
816 | ac59eb95 | Markus Armbruster | return;
|
817 | 6ab4b5ab | Markus Armbruster | } |
818 | 2d3735d3 | Stefan Hajnoczi | ret = bdrv_commit(bs); |
819 | 58513bde | Jeff Cody | } |
820 | 58513bde | Jeff Cody | if (ret < 0) { |
821 | 58513bde | Jeff Cody | monitor_printf(mon, "'commit' error for '%s': %s\n", device,
|
822 | 58513bde | Jeff Cody | strerror(-ret)); |
823 | 666daa68 | Markus Armbruster | } |
824 | 666daa68 | Markus Armbruster | } |
825 | 666daa68 | Markus Armbruster | |
826 | 6cc2a415 | Paolo Bonzini | static void blockdev_do_action(int kind, void *data, Error **errp) |
827 | 6cc2a415 | Paolo Bonzini | { |
828 | c8a83e85 | Kevin Wolf | TransactionAction action; |
829 | c8a83e85 | Kevin Wolf | TransactionActionList list; |
830 | 6cc2a415 | Paolo Bonzini | |
831 | 6cc2a415 | Paolo Bonzini | action.kind = kind; |
832 | 6cc2a415 | Paolo Bonzini | action.data = data; |
833 | 6cc2a415 | Paolo Bonzini | list.value = &action; |
834 | 6cc2a415 | Paolo Bonzini | list.next = NULL;
|
835 | 6cc2a415 | Paolo Bonzini | qmp_transaction(&list, errp); |
836 | 6cc2a415 | Paolo Bonzini | } |
837 | 6cc2a415 | Paolo Bonzini | |
838 | 6106e249 | Luiz Capitulino | void qmp_blockdev_snapshot_sync(const char *device, const char *snapshot_file, |
839 | 6106e249 | Luiz Capitulino | bool has_format, const char *format, |
840 | 6cc2a415 | Paolo Bonzini | bool has_mode, enum NewImageMode mode, |
841 | 6106e249 | Luiz Capitulino | Error **errp) |
842 | f8882568 | Jes Sorensen | { |
843 | 6cc2a415 | Paolo Bonzini | BlockdevSnapshot snapshot = { |
844 | 6cc2a415 | Paolo Bonzini | .device = (char *) device,
|
845 | 6cc2a415 | Paolo Bonzini | .snapshot_file = (char *) snapshot_file,
|
846 | 6cc2a415 | Paolo Bonzini | .has_format = has_format, |
847 | 6cc2a415 | Paolo Bonzini | .format = (char *) format,
|
848 | 6cc2a415 | Paolo Bonzini | .has_mode = has_mode, |
849 | 6cc2a415 | Paolo Bonzini | .mode = mode, |
850 | 6cc2a415 | Paolo Bonzini | }; |
851 | c8a83e85 | Kevin Wolf | blockdev_do_action(TRANSACTION_ACTION_KIND_BLOCKDEV_SNAPSHOT_SYNC, |
852 | c8a83e85 | Kevin Wolf | &snapshot, errp); |
853 | f8882568 | Jes Sorensen | } |
854 | f8882568 | Jes Sorensen | |
855 | f323bc9e | Wenchao Xia | void qmp_blockdev_snapshot_internal_sync(const char *device, |
856 | f323bc9e | Wenchao Xia | const char *name, |
857 | f323bc9e | Wenchao Xia | Error **errp) |
858 | f323bc9e | Wenchao Xia | { |
859 | f323bc9e | Wenchao Xia | BlockdevSnapshotInternal snapshot = { |
860 | f323bc9e | Wenchao Xia | .device = (char *) device,
|
861 | f323bc9e | Wenchao Xia | .name = (char *) name
|
862 | f323bc9e | Wenchao Xia | }; |
863 | f323bc9e | Wenchao Xia | |
864 | f323bc9e | Wenchao Xia | blockdev_do_action(TRANSACTION_ACTION_KIND_BLOCKDEV_SNAPSHOT_INTERNAL_SYNC, |
865 | f323bc9e | Wenchao Xia | &snapshot, errp); |
866 | f323bc9e | Wenchao Xia | } |
867 | f323bc9e | Wenchao Xia | |
868 | 44e3e053 | Wenchao Xia | SnapshotInfo *qmp_blockdev_snapshot_delete_internal_sync(const char *device, |
869 | 44e3e053 | Wenchao Xia | bool has_id,
|
870 | 44e3e053 | Wenchao Xia | const char *id, |
871 | 44e3e053 | Wenchao Xia | bool has_name,
|
872 | 44e3e053 | Wenchao Xia | const char *name, |
873 | 44e3e053 | Wenchao Xia | Error **errp) |
874 | 44e3e053 | Wenchao Xia | { |
875 | 44e3e053 | Wenchao Xia | BlockDriverState *bs = bdrv_find(device); |
876 | 44e3e053 | Wenchao Xia | QEMUSnapshotInfo sn; |
877 | 44e3e053 | Wenchao Xia | Error *local_err = NULL;
|
878 | 44e3e053 | Wenchao Xia | SnapshotInfo *info = NULL;
|
879 | 44e3e053 | Wenchao Xia | int ret;
|
880 | 44e3e053 | Wenchao Xia | |
881 | 44e3e053 | Wenchao Xia | if (!bs) {
|
882 | 44e3e053 | Wenchao Xia | error_set(errp, QERR_DEVICE_NOT_FOUND, device); |
883 | 44e3e053 | Wenchao Xia | return NULL; |
884 | 44e3e053 | Wenchao Xia | } |
885 | 44e3e053 | Wenchao Xia | |
886 | 44e3e053 | Wenchao Xia | if (!has_id) {
|
887 | 44e3e053 | Wenchao Xia | id = NULL;
|
888 | 44e3e053 | Wenchao Xia | } |
889 | 44e3e053 | Wenchao Xia | |
890 | 44e3e053 | Wenchao Xia | if (!has_name) {
|
891 | 44e3e053 | Wenchao Xia | name = NULL;
|
892 | 44e3e053 | Wenchao Xia | } |
893 | 44e3e053 | Wenchao Xia | |
894 | 44e3e053 | Wenchao Xia | if (!id && !name) {
|
895 | 44e3e053 | Wenchao Xia | error_setg(errp, "Name or id must be provided");
|
896 | 44e3e053 | Wenchao Xia | return NULL; |
897 | 44e3e053 | Wenchao Xia | } |
898 | 44e3e053 | Wenchao Xia | |
899 | 44e3e053 | Wenchao Xia | ret = bdrv_snapshot_find_by_id_and_name(bs, id, name, &sn, &local_err); |
900 | 44e3e053 | Wenchao Xia | if (error_is_set(&local_err)) {
|
901 | 44e3e053 | Wenchao Xia | error_propagate(errp, local_err); |
902 | 44e3e053 | Wenchao Xia | return NULL; |
903 | 44e3e053 | Wenchao Xia | } |
904 | 44e3e053 | Wenchao Xia | if (!ret) {
|
905 | 44e3e053 | Wenchao Xia | error_setg(errp, |
906 | 44e3e053 | Wenchao Xia | "Snapshot with id '%s' and name '%s' does not exist on "
|
907 | 44e3e053 | Wenchao Xia | "device '%s'",
|
908 | 44e3e053 | Wenchao Xia | STR_OR_NULL(id), STR_OR_NULL(name), device); |
909 | 44e3e053 | Wenchao Xia | return NULL; |
910 | 44e3e053 | Wenchao Xia | } |
911 | 44e3e053 | Wenchao Xia | |
912 | 44e3e053 | Wenchao Xia | bdrv_snapshot_delete(bs, id, name, &local_err); |
913 | 44e3e053 | Wenchao Xia | if (error_is_set(&local_err)) {
|
914 | 44e3e053 | Wenchao Xia | error_propagate(errp, local_err); |
915 | 44e3e053 | Wenchao Xia | return NULL; |
916 | 44e3e053 | Wenchao Xia | } |
917 | 44e3e053 | Wenchao Xia | |
918 | 44e3e053 | Wenchao Xia | info = g_malloc0(sizeof(SnapshotInfo));
|
919 | 44e3e053 | Wenchao Xia | info->id = g_strdup(sn.id_str); |
920 | 44e3e053 | Wenchao Xia | info->name = g_strdup(sn.name); |
921 | 44e3e053 | Wenchao Xia | info->date_nsec = sn.date_nsec; |
922 | 44e3e053 | Wenchao Xia | info->date_sec = sn.date_sec; |
923 | 44e3e053 | Wenchao Xia | info->vm_state_size = sn.vm_state_size; |
924 | 44e3e053 | Wenchao Xia | info->vm_clock_nsec = sn.vm_clock_nsec % 1000000000;
|
925 | 44e3e053 | Wenchao Xia | info->vm_clock_sec = sn.vm_clock_nsec / 1000000000;
|
926 | 44e3e053 | Wenchao Xia | |
927 | 44e3e053 | Wenchao Xia | return info;
|
928 | 44e3e053 | Wenchao Xia | } |
929 | 8802d1fd | Jeff Cody | |
930 | 8802d1fd | Jeff Cody | /* New and old BlockDriverState structs for group snapshots */
|
931 | ba0c86a3 | Wenchao Xia | |
932 | ba5d6ab6 | Stefan Hajnoczi | typedef struct BlkTransactionState BlkTransactionState; |
933 | ba0c86a3 | Wenchao Xia | |
934 | ba0c86a3 | Wenchao Xia | /* Only prepare() may fail. In a single transaction, only one of commit() or
|
935 | ba0c86a3 | Wenchao Xia | abort() will be called, clean() will always be called if it present. */
|
936 | ba0c86a3 | Wenchao Xia | typedef struct BdrvActionOps { |
937 | ba0c86a3 | Wenchao Xia | /* Size of state struct, in bytes. */
|
938 | ba0c86a3 | Wenchao Xia | size_t instance_size; |
939 | ba0c86a3 | Wenchao Xia | /* Prepare the work, must NOT be NULL. */
|
940 | ba5d6ab6 | Stefan Hajnoczi | void (*prepare)(BlkTransactionState *common, Error **errp);
|
941 | f9ea81e8 | Stefan Hajnoczi | /* Commit the changes, can be NULL. */
|
942 | ba5d6ab6 | Stefan Hajnoczi | void (*commit)(BlkTransactionState *common);
|
943 | ba0c86a3 | Wenchao Xia | /* Abort the changes on fail, can be NULL. */
|
944 | ba5d6ab6 | Stefan Hajnoczi | void (*abort)(BlkTransactionState *common);
|
945 | ba0c86a3 | Wenchao Xia | /* Clean up resource in the end, can be NULL. */
|
946 | ba5d6ab6 | Stefan Hajnoczi | void (*clean)(BlkTransactionState *common);
|
947 | ba0c86a3 | Wenchao Xia | } BdrvActionOps; |
948 | ba0c86a3 | Wenchao Xia | |
949 | ba0c86a3 | Wenchao Xia | /*
|
950 | ba0c86a3 | Wenchao Xia | * This structure must be arranged as first member in child type, assuming
|
951 | ba0c86a3 | Wenchao Xia | * that compiler will also arrange it to the same address with parent instance.
|
952 | ba0c86a3 | Wenchao Xia | * Later it will be used in free().
|
953 | ba0c86a3 | Wenchao Xia | */
|
954 | ba5d6ab6 | Stefan Hajnoczi | struct BlkTransactionState {
|
955 | c8a83e85 | Kevin Wolf | TransactionAction *action; |
956 | ba0c86a3 | Wenchao Xia | const BdrvActionOps *ops;
|
957 | ba5d6ab6 | Stefan Hajnoczi | QSIMPLEQ_ENTRY(BlkTransactionState) entry; |
958 | ba0c86a3 | Wenchao Xia | }; |
959 | ba0c86a3 | Wenchao Xia | |
960 | bbe86010 | Wenchao Xia | /* internal snapshot private data */
|
961 | bbe86010 | Wenchao Xia | typedef struct InternalSnapshotState { |
962 | bbe86010 | Wenchao Xia | BlkTransactionState common; |
963 | bbe86010 | Wenchao Xia | BlockDriverState *bs; |
964 | bbe86010 | Wenchao Xia | QEMUSnapshotInfo sn; |
965 | bbe86010 | Wenchao Xia | } InternalSnapshotState; |
966 | bbe86010 | Wenchao Xia | |
967 | bbe86010 | Wenchao Xia | static void internal_snapshot_prepare(BlkTransactionState *common, |
968 | bbe86010 | Wenchao Xia | Error **errp) |
969 | bbe86010 | Wenchao Xia | { |
970 | bbe86010 | Wenchao Xia | const char *device; |
971 | bbe86010 | Wenchao Xia | const char *name; |
972 | bbe86010 | Wenchao Xia | BlockDriverState *bs; |
973 | bbe86010 | Wenchao Xia | QEMUSnapshotInfo old_sn, *sn; |
974 | bbe86010 | Wenchao Xia | bool ret;
|
975 | bbe86010 | Wenchao Xia | qemu_timeval tv; |
976 | bbe86010 | Wenchao Xia | BlockdevSnapshotInternal *internal; |
977 | bbe86010 | Wenchao Xia | InternalSnapshotState *state; |
978 | bbe86010 | Wenchao Xia | int ret1;
|
979 | bbe86010 | Wenchao Xia | |
980 | bbe86010 | Wenchao Xia | g_assert(common->action->kind == |
981 | bbe86010 | Wenchao Xia | TRANSACTION_ACTION_KIND_BLOCKDEV_SNAPSHOT_INTERNAL_SYNC); |
982 | bbe86010 | Wenchao Xia | internal = common->action->blockdev_snapshot_internal_sync; |
983 | bbe86010 | Wenchao Xia | state = DO_UPCAST(InternalSnapshotState, common, common); |
984 | bbe86010 | Wenchao Xia | |
985 | bbe86010 | Wenchao Xia | /* 1. parse input */
|
986 | bbe86010 | Wenchao Xia | device = internal->device; |
987 | bbe86010 | Wenchao Xia | name = internal->name; |
988 | bbe86010 | Wenchao Xia | |
989 | bbe86010 | Wenchao Xia | /* 2. check for validation */
|
990 | bbe86010 | Wenchao Xia | bs = bdrv_find(device); |
991 | bbe86010 | Wenchao Xia | if (!bs) {
|
992 | bbe86010 | Wenchao Xia | error_set(errp, QERR_DEVICE_NOT_FOUND, device); |
993 | bbe86010 | Wenchao Xia | return;
|
994 | bbe86010 | Wenchao Xia | } |
995 | bbe86010 | Wenchao Xia | |
996 | bbe86010 | Wenchao Xia | if (!bdrv_is_inserted(bs)) {
|
997 | bbe86010 | Wenchao Xia | error_set(errp, QERR_DEVICE_HAS_NO_MEDIUM, device); |
998 | bbe86010 | Wenchao Xia | return;
|
999 | bbe86010 | Wenchao Xia | } |
1000 | bbe86010 | Wenchao Xia | |
1001 | bbe86010 | Wenchao Xia | if (bdrv_is_read_only(bs)) {
|
1002 | bbe86010 | Wenchao Xia | error_set(errp, QERR_DEVICE_IS_READ_ONLY, device); |
1003 | bbe86010 | Wenchao Xia | return;
|
1004 | bbe86010 | Wenchao Xia | } |
1005 | bbe86010 | Wenchao Xia | |
1006 | bbe86010 | Wenchao Xia | if (!bdrv_can_snapshot(bs)) {
|
1007 | bbe86010 | Wenchao Xia | error_set(errp, QERR_BLOCK_FORMAT_FEATURE_NOT_SUPPORTED, |
1008 | bbe86010 | Wenchao Xia | bs->drv->format_name, device, "internal snapshot");
|
1009 | bbe86010 | Wenchao Xia | return;
|
1010 | bbe86010 | Wenchao Xia | } |
1011 | bbe86010 | Wenchao Xia | |
1012 | bbe86010 | Wenchao Xia | if (!strlen(name)) {
|
1013 | bbe86010 | Wenchao Xia | error_setg(errp, "Name is empty");
|
1014 | bbe86010 | Wenchao Xia | return;
|
1015 | bbe86010 | Wenchao Xia | } |
1016 | bbe86010 | Wenchao Xia | |
1017 | bbe86010 | Wenchao Xia | /* check whether a snapshot with name exist */
|
1018 | bbe86010 | Wenchao Xia | ret = bdrv_snapshot_find_by_id_and_name(bs, NULL, name, &old_sn, errp);
|
1019 | bbe86010 | Wenchao Xia | if (error_is_set(errp)) {
|
1020 | bbe86010 | Wenchao Xia | return;
|
1021 | bbe86010 | Wenchao Xia | } else if (ret) { |
1022 | bbe86010 | Wenchao Xia | error_setg(errp, |
1023 | bbe86010 | Wenchao Xia | "Snapshot with name '%s' already exists on device '%s'",
|
1024 | bbe86010 | Wenchao Xia | name, device); |
1025 | bbe86010 | Wenchao Xia | return;
|
1026 | bbe86010 | Wenchao Xia | } |
1027 | bbe86010 | Wenchao Xia | |
1028 | bbe86010 | Wenchao Xia | /* 3. take the snapshot */
|
1029 | bbe86010 | Wenchao Xia | sn = &state->sn; |
1030 | bbe86010 | Wenchao Xia | pstrcpy(sn->name, sizeof(sn->name), name);
|
1031 | bbe86010 | Wenchao Xia | qemu_gettimeofday(&tv); |
1032 | bbe86010 | Wenchao Xia | sn->date_sec = tv.tv_sec; |
1033 | bbe86010 | Wenchao Xia | sn->date_nsec = tv.tv_usec * 1000;
|
1034 | bbe86010 | Wenchao Xia | sn->vm_clock_nsec = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL); |
1035 | bbe86010 | Wenchao Xia | |
1036 | bbe86010 | Wenchao Xia | ret1 = bdrv_snapshot_create(bs, sn); |
1037 | bbe86010 | Wenchao Xia | if (ret1 < 0) { |
1038 | bbe86010 | Wenchao Xia | error_setg_errno(errp, -ret1, |
1039 | bbe86010 | Wenchao Xia | "Failed to create snapshot '%s' on device '%s'",
|
1040 | bbe86010 | Wenchao Xia | name, device); |
1041 | bbe86010 | Wenchao Xia | return;
|
1042 | bbe86010 | Wenchao Xia | } |
1043 | bbe86010 | Wenchao Xia | |
1044 | bbe86010 | Wenchao Xia | /* 4. succeed, mark a snapshot is created */
|
1045 | bbe86010 | Wenchao Xia | state->bs = bs; |
1046 | bbe86010 | Wenchao Xia | } |
1047 | bbe86010 | Wenchao Xia | |
1048 | bbe86010 | Wenchao Xia | static void internal_snapshot_abort(BlkTransactionState *common) |
1049 | bbe86010 | Wenchao Xia | { |
1050 | bbe86010 | Wenchao Xia | InternalSnapshotState *state = |
1051 | bbe86010 | Wenchao Xia | DO_UPCAST(InternalSnapshotState, common, common); |
1052 | bbe86010 | Wenchao Xia | BlockDriverState *bs = state->bs; |
1053 | bbe86010 | Wenchao Xia | QEMUSnapshotInfo *sn = &state->sn; |
1054 | bbe86010 | Wenchao Xia | Error *local_error = NULL;
|
1055 | bbe86010 | Wenchao Xia | |
1056 | bbe86010 | Wenchao Xia | if (!bs) {
|
1057 | bbe86010 | Wenchao Xia | return;
|
1058 | bbe86010 | Wenchao Xia | } |
1059 | bbe86010 | Wenchao Xia | |
1060 | bbe86010 | Wenchao Xia | if (bdrv_snapshot_delete(bs, sn->id_str, sn->name, &local_error) < 0) { |
1061 | bbe86010 | Wenchao Xia | error_report("Failed to delete snapshot with id '%s' and name '%s' on "
|
1062 | bbe86010 | Wenchao Xia | "device '%s' in abort: %s",
|
1063 | bbe86010 | Wenchao Xia | sn->id_str, |
1064 | bbe86010 | Wenchao Xia | sn->name, |
1065 | bbe86010 | Wenchao Xia | bdrv_get_device_name(bs), |
1066 | bbe86010 | Wenchao Xia | error_get_pretty(local_error)); |
1067 | bbe86010 | Wenchao Xia | error_free(local_error); |
1068 | bbe86010 | Wenchao Xia | } |
1069 | bbe86010 | Wenchao Xia | } |
1070 | bbe86010 | Wenchao Xia | |
1071 | ba0c86a3 | Wenchao Xia | /* external snapshot private data */
|
1072 | ba5d6ab6 | Stefan Hajnoczi | typedef struct ExternalSnapshotState { |
1073 | ba5d6ab6 | Stefan Hajnoczi | BlkTransactionState common; |
1074 | 8802d1fd | Jeff Cody | BlockDriverState *old_bs; |
1075 | 8802d1fd | Jeff Cody | BlockDriverState *new_bs; |
1076 | ba5d6ab6 | Stefan Hajnoczi | } ExternalSnapshotState; |
1077 | 8802d1fd | Jeff Cody | |
1078 | ba5d6ab6 | Stefan Hajnoczi | static void external_snapshot_prepare(BlkTransactionState *common, |
1079 | 9b9877ee | Wenchao Xia | Error **errp) |
1080 | 9b9877ee | Wenchao Xia | { |
1081 | 9b9877ee | Wenchao Xia | BlockDriver *drv; |
1082 | 9b9877ee | Wenchao Xia | int flags, ret;
|
1083 | 9b9877ee | Wenchao Xia | Error *local_err = NULL;
|
1084 | e2a31e87 | Wenchao Xia | const char *device; |
1085 | e2a31e87 | Wenchao Xia | const char *new_image_file; |
1086 | e2a31e87 | Wenchao Xia | const char *format = "qcow2"; |
1087 | e2a31e87 | Wenchao Xia | enum NewImageMode mode = NEW_IMAGE_MODE_ABSOLUTE_PATHS;
|
1088 | ba5d6ab6 | Stefan Hajnoczi | ExternalSnapshotState *state = |
1089 | ba5d6ab6 | Stefan Hajnoczi | DO_UPCAST(ExternalSnapshotState, common, common); |
1090 | c8a83e85 | Kevin Wolf | TransactionAction *action = common->action; |
1091 | 9b9877ee | Wenchao Xia | |
1092 | e2a31e87 | Wenchao Xia | /* get parameters */
|
1093 | c8a83e85 | Kevin Wolf | g_assert(action->kind == TRANSACTION_ACTION_KIND_BLOCKDEV_SNAPSHOT_SYNC); |
1094 | e2a31e87 | Wenchao Xia | |
1095 | e2a31e87 | Wenchao Xia | device = action->blockdev_snapshot_sync->device; |
1096 | e2a31e87 | Wenchao Xia | new_image_file = action->blockdev_snapshot_sync->snapshot_file; |
1097 | e2a31e87 | Wenchao Xia | if (action->blockdev_snapshot_sync->has_format) {
|
1098 | e2a31e87 | Wenchao Xia | format = action->blockdev_snapshot_sync->format; |
1099 | e2a31e87 | Wenchao Xia | } |
1100 | e2a31e87 | Wenchao Xia | if (action->blockdev_snapshot_sync->has_mode) {
|
1101 | e2a31e87 | Wenchao Xia | mode = action->blockdev_snapshot_sync->mode; |
1102 | e2a31e87 | Wenchao Xia | } |
1103 | e2a31e87 | Wenchao Xia | |
1104 | e2a31e87 | Wenchao Xia | /* start processing */
|
1105 | 9b9877ee | Wenchao Xia | drv = bdrv_find_format(format); |
1106 | 9b9877ee | Wenchao Xia | if (!drv) {
|
1107 | 9b9877ee | Wenchao Xia | error_set(errp, QERR_INVALID_BLOCK_FORMAT, format); |
1108 | 9b9877ee | Wenchao Xia | return;
|
1109 | 9b9877ee | Wenchao Xia | } |
1110 | 9b9877ee | Wenchao Xia | |
1111 | ba5d6ab6 | Stefan Hajnoczi | state->old_bs = bdrv_find(device); |
1112 | ba5d6ab6 | Stefan Hajnoczi | if (!state->old_bs) {
|
1113 | 9b9877ee | Wenchao Xia | error_set(errp, QERR_DEVICE_NOT_FOUND, device); |
1114 | 9b9877ee | Wenchao Xia | return;
|
1115 | 9b9877ee | Wenchao Xia | } |
1116 | 9b9877ee | Wenchao Xia | |
1117 | ba5d6ab6 | Stefan Hajnoczi | if (!bdrv_is_inserted(state->old_bs)) {
|
1118 | 9b9877ee | Wenchao Xia | error_set(errp, QERR_DEVICE_HAS_NO_MEDIUM, device); |
1119 | 9b9877ee | Wenchao Xia | return;
|
1120 | 9b9877ee | Wenchao Xia | } |
1121 | 9b9877ee | Wenchao Xia | |
1122 | ba5d6ab6 | Stefan Hajnoczi | if (bdrv_in_use(state->old_bs)) {
|
1123 | 9b9877ee | Wenchao Xia | error_set(errp, QERR_DEVICE_IN_USE, device); |
1124 | 9b9877ee | Wenchao Xia | return;
|
1125 | 9b9877ee | Wenchao Xia | } |
1126 | 9b9877ee | Wenchao Xia | |
1127 | ba5d6ab6 | Stefan Hajnoczi | if (!bdrv_is_read_only(state->old_bs)) {
|
1128 | ba5d6ab6 | Stefan Hajnoczi | if (bdrv_flush(state->old_bs)) {
|
1129 | 9b9877ee | Wenchao Xia | error_set(errp, QERR_IO_ERROR); |
1130 | 9b9877ee | Wenchao Xia | return;
|
1131 | 9b9877ee | Wenchao Xia | } |
1132 | 9b9877ee | Wenchao Xia | } |
1133 | 9b9877ee | Wenchao Xia | |
1134 | ba5d6ab6 | Stefan Hajnoczi | flags = state->old_bs->open_flags; |
1135 | 9b9877ee | Wenchao Xia | |
1136 | 9b9877ee | Wenchao Xia | /* create new image w/backing file */
|
1137 | 9b9877ee | Wenchao Xia | if (mode != NEW_IMAGE_MODE_EXISTING) {
|
1138 | 9b9877ee | Wenchao Xia | bdrv_img_create(new_image_file, format, |
1139 | ba5d6ab6 | Stefan Hajnoczi | state->old_bs->filename, |
1140 | ba5d6ab6 | Stefan Hajnoczi | state->old_bs->drv->format_name, |
1141 | 9b9877ee | Wenchao Xia | NULL, -1, flags, &local_err, false); |
1142 | 9b9877ee | Wenchao Xia | if (error_is_set(&local_err)) {
|
1143 | 9b9877ee | Wenchao Xia | error_propagate(errp, local_err); |
1144 | 9b9877ee | Wenchao Xia | return;
|
1145 | 9b9877ee | Wenchao Xia | } |
1146 | 9b9877ee | Wenchao Xia | } |
1147 | 9b9877ee | Wenchao Xia | |
1148 | 9b9877ee | Wenchao Xia | /* We will manually add the backing_hd field to the bs later */
|
1149 | ba5d6ab6 | Stefan Hajnoczi | state->new_bs = bdrv_new("");
|
1150 | 9b9877ee | Wenchao Xia | /* TODO Inherit bs->options or only take explicit options with an
|
1151 | 9b9877ee | Wenchao Xia | * extended QMP command? */
|
1152 | ba5d6ab6 | Stefan Hajnoczi | ret = bdrv_open(state->new_bs, new_image_file, NULL,
|
1153 | 34b5d2c6 | Max Reitz | flags | BDRV_O_NO_BACKING, drv, &local_err); |
1154 | 9b9877ee | Wenchao Xia | if (ret != 0) { |
1155 | 34b5d2c6 | Max Reitz | error_propagate(errp, local_err); |
1156 | 9b9877ee | Wenchao Xia | } |
1157 | 9b9877ee | Wenchao Xia | } |
1158 | 9b9877ee | Wenchao Xia | |
1159 | ba5d6ab6 | Stefan Hajnoczi | static void external_snapshot_commit(BlkTransactionState *common) |
1160 | 3b0047e8 | Wenchao Xia | { |
1161 | ba5d6ab6 | Stefan Hajnoczi | ExternalSnapshotState *state = |
1162 | ba5d6ab6 | Stefan Hajnoczi | DO_UPCAST(ExternalSnapshotState, common, common); |
1163 | ba0c86a3 | Wenchao Xia | |
1164 | ba5d6ab6 | Stefan Hajnoczi | /* This removes our old bs and adds the new bs */
|
1165 | ba5d6ab6 | Stefan Hajnoczi | bdrv_append(state->new_bs, state->old_bs); |
1166 | 3b0047e8 | Wenchao Xia | /* We don't need (or want) to use the transactional
|
1167 | 3b0047e8 | Wenchao Xia | * bdrv_reopen_multiple() across all the entries at once, because we
|
1168 | 3b0047e8 | Wenchao Xia | * don't want to abort all of them if one of them fails the reopen */
|
1169 | ba5d6ab6 | Stefan Hajnoczi | bdrv_reopen(state->new_bs, state->new_bs->open_flags & ~BDRV_O_RDWR, |
1170 | 3b0047e8 | Wenchao Xia | NULL);
|
1171 | 3b0047e8 | Wenchao Xia | } |
1172 | 3b0047e8 | Wenchao Xia | |
1173 | ba5d6ab6 | Stefan Hajnoczi | static void external_snapshot_abort(BlkTransactionState *common) |
1174 | 96b86bf7 | Wenchao Xia | { |
1175 | ba5d6ab6 | Stefan Hajnoczi | ExternalSnapshotState *state = |
1176 | ba5d6ab6 | Stefan Hajnoczi | DO_UPCAST(ExternalSnapshotState, common, common); |
1177 | ba5d6ab6 | Stefan Hajnoczi | if (state->new_bs) {
|
1178 | 4f6fd349 | Fam Zheng | bdrv_unref(state->new_bs); |
1179 | 96b86bf7 | Wenchao Xia | } |
1180 | 96b86bf7 | Wenchao Xia | } |
1181 | 96b86bf7 | Wenchao Xia | |
1182 | 3037f364 | Stefan Hajnoczi | typedef struct DriveBackupState { |
1183 | 3037f364 | Stefan Hajnoczi | BlkTransactionState common; |
1184 | 3037f364 | Stefan Hajnoczi | BlockDriverState *bs; |
1185 | 3037f364 | Stefan Hajnoczi | BlockJob *job; |
1186 | 3037f364 | Stefan Hajnoczi | } DriveBackupState; |
1187 | 3037f364 | Stefan Hajnoczi | |
1188 | 3037f364 | Stefan Hajnoczi | static void drive_backup_prepare(BlkTransactionState *common, Error **errp) |
1189 | 3037f364 | Stefan Hajnoczi | { |
1190 | 3037f364 | Stefan Hajnoczi | DriveBackupState *state = DO_UPCAST(DriveBackupState, common, common); |
1191 | 3037f364 | Stefan Hajnoczi | DriveBackup *backup; |
1192 | 3037f364 | Stefan Hajnoczi | Error *local_err = NULL;
|
1193 | 3037f364 | Stefan Hajnoczi | |
1194 | 3037f364 | Stefan Hajnoczi | assert(common->action->kind == TRANSACTION_ACTION_KIND_DRIVE_BACKUP); |
1195 | 3037f364 | Stefan Hajnoczi | backup = common->action->drive_backup; |
1196 | 3037f364 | Stefan Hajnoczi | |
1197 | 3037f364 | Stefan Hajnoczi | qmp_drive_backup(backup->device, backup->target, |
1198 | 3037f364 | Stefan Hajnoczi | backup->has_format, backup->format, |
1199 | b53169ea | Stefan Hajnoczi | backup->sync, |
1200 | 3037f364 | Stefan Hajnoczi | backup->has_mode, backup->mode, |
1201 | 3037f364 | Stefan Hajnoczi | backup->has_speed, backup->speed, |
1202 | 3037f364 | Stefan Hajnoczi | backup->has_on_source_error, backup->on_source_error, |
1203 | 3037f364 | Stefan Hajnoczi | backup->has_on_target_error, backup->on_target_error, |
1204 | 3037f364 | Stefan Hajnoczi | &local_err); |
1205 | 3037f364 | Stefan Hajnoczi | if (error_is_set(&local_err)) {
|
1206 | 3037f364 | Stefan Hajnoczi | error_propagate(errp, local_err); |
1207 | 3037f364 | Stefan Hajnoczi | state->bs = NULL;
|
1208 | 3037f364 | Stefan Hajnoczi | state->job = NULL;
|
1209 | 3037f364 | Stefan Hajnoczi | return;
|
1210 | 3037f364 | Stefan Hajnoczi | } |
1211 | 3037f364 | Stefan Hajnoczi | |
1212 | 3037f364 | Stefan Hajnoczi | state->bs = bdrv_find(backup->device); |
1213 | 3037f364 | Stefan Hajnoczi | state->job = state->bs->job; |
1214 | 3037f364 | Stefan Hajnoczi | } |
1215 | 3037f364 | Stefan Hajnoczi | |
1216 | 3037f364 | Stefan Hajnoczi | static void drive_backup_abort(BlkTransactionState *common) |
1217 | 3037f364 | Stefan Hajnoczi | { |
1218 | 3037f364 | Stefan Hajnoczi | DriveBackupState *state = DO_UPCAST(DriveBackupState, common, common); |
1219 | 3037f364 | Stefan Hajnoczi | BlockDriverState *bs = state->bs; |
1220 | 3037f364 | Stefan Hajnoczi | |
1221 | 3037f364 | Stefan Hajnoczi | /* Only cancel if it's the job we started */
|
1222 | 3037f364 | Stefan Hajnoczi | if (bs && bs->job && bs->job == state->job) {
|
1223 | 3037f364 | Stefan Hajnoczi | block_job_cancel_sync(bs->job); |
1224 | 3037f364 | Stefan Hajnoczi | } |
1225 | 3037f364 | Stefan Hajnoczi | } |
1226 | 3037f364 | Stefan Hajnoczi | |
1227 | 78b18b78 | Stefan Hajnoczi | static void abort_prepare(BlkTransactionState *common, Error **errp) |
1228 | 78b18b78 | Stefan Hajnoczi | { |
1229 | 78b18b78 | Stefan Hajnoczi | error_setg(errp, "Transaction aborted using Abort action");
|
1230 | 78b18b78 | Stefan Hajnoczi | } |
1231 | 78b18b78 | Stefan Hajnoczi | |
1232 | 78b18b78 | Stefan Hajnoczi | static void abort_commit(BlkTransactionState *common) |
1233 | 78b18b78 | Stefan Hajnoczi | { |
1234 | dfc6f865 | Stefan Weil | g_assert_not_reached(); /* this action never succeeds */
|
1235 | 78b18b78 | Stefan Hajnoczi | } |
1236 | 78b18b78 | Stefan Hajnoczi | |
1237 | ba0c86a3 | Wenchao Xia | static const BdrvActionOps actions[] = { |
1238 | c8a83e85 | Kevin Wolf | [TRANSACTION_ACTION_KIND_BLOCKDEV_SNAPSHOT_SYNC] = { |
1239 | ba5d6ab6 | Stefan Hajnoczi | .instance_size = sizeof(ExternalSnapshotState),
|
1240 | ba0c86a3 | Wenchao Xia | .prepare = external_snapshot_prepare, |
1241 | ba0c86a3 | Wenchao Xia | .commit = external_snapshot_commit, |
1242 | ba0c86a3 | Wenchao Xia | .abort = external_snapshot_abort, |
1243 | ba0c86a3 | Wenchao Xia | }, |
1244 | 3037f364 | Stefan Hajnoczi | [TRANSACTION_ACTION_KIND_DRIVE_BACKUP] = { |
1245 | 3037f364 | Stefan Hajnoczi | .instance_size = sizeof(DriveBackupState),
|
1246 | 3037f364 | Stefan Hajnoczi | .prepare = drive_backup_prepare, |
1247 | 3037f364 | Stefan Hajnoczi | .abort = drive_backup_abort, |
1248 | 3037f364 | Stefan Hajnoczi | }, |
1249 | 78b18b78 | Stefan Hajnoczi | [TRANSACTION_ACTION_KIND_ABORT] = { |
1250 | 78b18b78 | Stefan Hajnoczi | .instance_size = sizeof(BlkTransactionState),
|
1251 | 78b18b78 | Stefan Hajnoczi | .prepare = abort_prepare, |
1252 | 78b18b78 | Stefan Hajnoczi | .commit = abort_commit, |
1253 | 78b18b78 | Stefan Hajnoczi | }, |
1254 | bbe86010 | Wenchao Xia | [TRANSACTION_ACTION_KIND_BLOCKDEV_SNAPSHOT_INTERNAL_SYNC] = { |
1255 | bbe86010 | Wenchao Xia | .instance_size = sizeof(InternalSnapshotState),
|
1256 | bbe86010 | Wenchao Xia | .prepare = internal_snapshot_prepare, |
1257 | bbe86010 | Wenchao Xia | .abort = internal_snapshot_abort, |
1258 | bbe86010 | Wenchao Xia | }, |
1259 | ba0c86a3 | Wenchao Xia | }; |
1260 | ba0c86a3 | Wenchao Xia | |
1261 | 8802d1fd | Jeff Cody | /*
|
1262 | 8802d1fd | Jeff Cody | * 'Atomic' group snapshots. The snapshots are taken as a set, and if any fail
|
1263 | 8802d1fd | Jeff Cody | * then we do not pivot any of the devices in the group, and abandon the
|
1264 | 8802d1fd | Jeff Cody | * snapshots
|
1265 | 8802d1fd | Jeff Cody | */
|
1266 | c8a83e85 | Kevin Wolf | void qmp_transaction(TransactionActionList *dev_list, Error **errp)
|
1267 | 8802d1fd | Jeff Cody | { |
1268 | c8a83e85 | Kevin Wolf | TransactionActionList *dev_entry = dev_list; |
1269 | ba5d6ab6 | Stefan Hajnoczi | BlkTransactionState *state, *next; |
1270 | 43e17041 | Luiz Capitulino | Error *local_err = NULL;
|
1271 | 8802d1fd | Jeff Cody | |
1272 | ba5d6ab6 | Stefan Hajnoczi | QSIMPLEQ_HEAD(snap_bdrv_states, BlkTransactionState) snap_bdrv_states; |
1273 | 8802d1fd | Jeff Cody | QSIMPLEQ_INIT(&snap_bdrv_states); |
1274 | 8802d1fd | Jeff Cody | |
1275 | 8802d1fd | Jeff Cody | /* drain all i/o before any snapshots */
|
1276 | 8802d1fd | Jeff Cody | bdrv_drain_all(); |
1277 | 8802d1fd | Jeff Cody | |
1278 | 8802d1fd | Jeff Cody | /* We don't do anything in this loop that commits us to the snapshot */
|
1279 | 8802d1fd | Jeff Cody | while (NULL != dev_entry) { |
1280 | c8a83e85 | Kevin Wolf | TransactionAction *dev_info = NULL;
|
1281 | ba0c86a3 | Wenchao Xia | const BdrvActionOps *ops;
|
1282 | 52e7c241 | Paolo Bonzini | |
1283 | 8802d1fd | Jeff Cody | dev_info = dev_entry->value; |
1284 | 8802d1fd | Jeff Cody | dev_entry = dev_entry->next; |
1285 | 8802d1fd | Jeff Cody | |
1286 | ba0c86a3 | Wenchao Xia | assert(dev_info->kind < ARRAY_SIZE(actions)); |
1287 | ba0c86a3 | Wenchao Xia | |
1288 | ba0c86a3 | Wenchao Xia | ops = &actions[dev_info->kind]; |
1289 | ba5d6ab6 | Stefan Hajnoczi | state = g_malloc0(ops->instance_size); |
1290 | ba5d6ab6 | Stefan Hajnoczi | state->ops = ops; |
1291 | ba5d6ab6 | Stefan Hajnoczi | state->action = dev_info; |
1292 | ba5d6ab6 | Stefan Hajnoczi | QSIMPLEQ_INSERT_TAIL(&snap_bdrv_states, state, entry); |
1293 | 8802d1fd | Jeff Cody | |
1294 | ba5d6ab6 | Stefan Hajnoczi | state->ops->prepare(state, &local_err); |
1295 | ba0c86a3 | Wenchao Xia | if (error_is_set(&local_err)) {
|
1296 | ba0c86a3 | Wenchao Xia | error_propagate(errp, local_err); |
1297 | ba0c86a3 | Wenchao Xia | goto delete_and_fail;
|
1298 | 8802d1fd | Jeff Cody | } |
1299 | 8802d1fd | Jeff Cody | } |
1300 | 8802d1fd | Jeff Cody | |
1301 | ba5d6ab6 | Stefan Hajnoczi | QSIMPLEQ_FOREACH(state, &snap_bdrv_states, entry) { |
1302 | f9ea81e8 | Stefan Hajnoczi | if (state->ops->commit) {
|
1303 | f9ea81e8 | Stefan Hajnoczi | state->ops->commit(state); |
1304 | f9ea81e8 | Stefan Hajnoczi | } |
1305 | 8802d1fd | Jeff Cody | } |
1306 | 8802d1fd | Jeff Cody | |
1307 | 8802d1fd | Jeff Cody | /* success */
|
1308 | 8802d1fd | Jeff Cody | goto exit;
|
1309 | 8802d1fd | Jeff Cody | |
1310 | 8802d1fd | Jeff Cody | delete_and_fail:
|
1311 | 8802d1fd | Jeff Cody | /*
|
1312 | 8802d1fd | Jeff Cody | * failure, and it is all-or-none; abandon each new bs, and keep using
|
1313 | 8802d1fd | Jeff Cody | * the original bs for all images
|
1314 | 8802d1fd | Jeff Cody | */
|
1315 | ba5d6ab6 | Stefan Hajnoczi | QSIMPLEQ_FOREACH(state, &snap_bdrv_states, entry) { |
1316 | ba5d6ab6 | Stefan Hajnoczi | if (state->ops->abort) {
|
1317 | ba5d6ab6 | Stefan Hajnoczi | state->ops->abort(state); |
1318 | ba0c86a3 | Wenchao Xia | } |
1319 | 8802d1fd | Jeff Cody | } |
1320 | 8802d1fd | Jeff Cody | exit:
|
1321 | ba5d6ab6 | Stefan Hajnoczi | QSIMPLEQ_FOREACH_SAFE(state, &snap_bdrv_states, entry, next) { |
1322 | ba5d6ab6 | Stefan Hajnoczi | if (state->ops->clean) {
|
1323 | ba5d6ab6 | Stefan Hajnoczi | state->ops->clean(state); |
1324 | ba0c86a3 | Wenchao Xia | } |
1325 | ba5d6ab6 | Stefan Hajnoczi | g_free(state); |
1326 | 8802d1fd | Jeff Cody | } |
1327 | 8802d1fd | Jeff Cody | } |
1328 | 8802d1fd | Jeff Cody | |
1329 | 8802d1fd | Jeff Cody | |
1330 | 92d48558 | Luiz Capitulino | static void eject_device(BlockDriverState *bs, int force, Error **errp) |
1331 | 666daa68 | Markus Armbruster | { |
1332 | 2d3735d3 | Stefan Hajnoczi | if (bdrv_in_use(bs)) {
|
1333 | 2d3735d3 | Stefan Hajnoczi | error_set(errp, QERR_DEVICE_IN_USE, bdrv_get_device_name(bs)); |
1334 | 2d3735d3 | Stefan Hajnoczi | return;
|
1335 | 2d3735d3 | Stefan Hajnoczi | } |
1336 | 2c6942fa | Markus Armbruster | if (!bdrv_dev_has_removable_media(bs)) {
|
1337 | 92d48558 | Luiz Capitulino | error_set(errp, QERR_DEVICE_NOT_REMOVABLE, bdrv_get_device_name(bs)); |
1338 | 92d48558 | Luiz Capitulino | return;
|
1339 | ea8f942f | Markus Armbruster | } |
1340 | 92d48558 | Luiz Capitulino | |
1341 | 025ccaa7 | Paolo Bonzini | if (bdrv_dev_is_medium_locked(bs) && !bdrv_dev_is_tray_open(bs)) {
|
1342 | 025ccaa7 | Paolo Bonzini | bdrv_dev_eject_request(bs, force); |
1343 | 025ccaa7 | Paolo Bonzini | if (!force) {
|
1344 | 92d48558 | Luiz Capitulino | error_set(errp, QERR_DEVICE_LOCKED, bdrv_get_device_name(bs)); |
1345 | 92d48558 | Luiz Capitulino | return;
|
1346 | 025ccaa7 | Paolo Bonzini | } |
1347 | 666daa68 | Markus Armbruster | } |
1348 | 92d48558 | Luiz Capitulino | |
1349 | 3b5276b5 | Eduardo Habkost | bdrv_close(bs); |
1350 | 666daa68 | Markus Armbruster | } |
1351 | 666daa68 | Markus Armbruster | |
1352 | c245b6a3 | Luiz Capitulino | void qmp_eject(const char *device, bool has_force, bool force, Error **errp) |
1353 | 666daa68 | Markus Armbruster | { |
1354 | 666daa68 | Markus Armbruster | BlockDriverState *bs; |
1355 | 666daa68 | Markus Armbruster | |
1356 | c245b6a3 | Luiz Capitulino | bs = bdrv_find(device); |
1357 | 666daa68 | Markus Armbruster | if (!bs) {
|
1358 | c245b6a3 | Luiz Capitulino | error_set(errp, QERR_DEVICE_NOT_FOUND, device); |
1359 | c245b6a3 | Luiz Capitulino | return;
|
1360 | 92d48558 | Luiz Capitulino | } |
1361 | 92d48558 | Luiz Capitulino | |
1362 | c245b6a3 | Luiz Capitulino | eject_device(bs, force, errp); |
1363 | 666daa68 | Markus Armbruster | } |
1364 | 666daa68 | Markus Armbruster | |
1365 | a4dea8a9 | Luiz Capitulino | void qmp_block_passwd(const char *device, const char *password, Error **errp) |
1366 | 666daa68 | Markus Armbruster | { |
1367 | 666daa68 | Markus Armbruster | BlockDriverState *bs; |
1368 | 666daa68 | Markus Armbruster | int err;
|
1369 | 666daa68 | Markus Armbruster | |
1370 | a4dea8a9 | Luiz Capitulino | bs = bdrv_find(device); |
1371 | 666daa68 | Markus Armbruster | if (!bs) {
|
1372 | a4dea8a9 | Luiz Capitulino | error_set(errp, QERR_DEVICE_NOT_FOUND, device); |
1373 | a4dea8a9 | Luiz Capitulino | return;
|
1374 | 666daa68 | Markus Armbruster | } |
1375 | 666daa68 | Markus Armbruster | |
1376 | a4dea8a9 | Luiz Capitulino | err = bdrv_set_key(bs, password); |
1377 | 666daa68 | Markus Armbruster | if (err == -EINVAL) {
|
1378 | a4dea8a9 | Luiz Capitulino | error_set(errp, QERR_DEVICE_NOT_ENCRYPTED, bdrv_get_device_name(bs)); |
1379 | a4dea8a9 | Luiz Capitulino | return;
|
1380 | 666daa68 | Markus Armbruster | } else if (err < 0) { |
1381 | a4dea8a9 | Luiz Capitulino | error_set(errp, QERR_INVALID_PASSWORD); |
1382 | a4dea8a9 | Luiz Capitulino | return;
|
1383 | 666daa68 | Markus Armbruster | } |
1384 | 666daa68 | Markus Armbruster | } |
1385 | 666daa68 | Markus Armbruster | |
1386 | 333a96ec | Luiz Capitulino | static void qmp_bdrv_open_encrypted(BlockDriverState *bs, const char *filename, |
1387 | 333a96ec | Luiz Capitulino | int bdrv_flags, BlockDriver *drv,
|
1388 | 333a96ec | Luiz Capitulino | const char *password, Error **errp) |
1389 | 333a96ec | Luiz Capitulino | { |
1390 | 34b5d2c6 | Max Reitz | Error *local_err = NULL;
|
1391 | 0eef407c | Luiz Capitulino | int ret;
|
1392 | 0eef407c | Luiz Capitulino | |
1393 | 34b5d2c6 | Max Reitz | ret = bdrv_open(bs, filename, NULL, bdrv_flags, drv, &local_err);
|
1394 | 0eef407c | Luiz Capitulino | if (ret < 0) { |
1395 | 34b5d2c6 | Max Reitz | error_propagate(errp, local_err); |
1396 | 333a96ec | Luiz Capitulino | return;
|
1397 | 333a96ec | Luiz Capitulino | } |
1398 | 333a96ec | Luiz Capitulino | |
1399 | 333a96ec | Luiz Capitulino | if (bdrv_key_required(bs)) {
|
1400 | 333a96ec | Luiz Capitulino | if (password) {
|
1401 | 333a96ec | Luiz Capitulino | if (bdrv_set_key(bs, password) < 0) { |
1402 | 333a96ec | Luiz Capitulino | error_set(errp, QERR_INVALID_PASSWORD); |
1403 | 333a96ec | Luiz Capitulino | } |
1404 | 333a96ec | Luiz Capitulino | } else {
|
1405 | 333a96ec | Luiz Capitulino | error_set(errp, QERR_DEVICE_ENCRYPTED, bdrv_get_device_name(bs), |
1406 | 333a96ec | Luiz Capitulino | bdrv_get_encrypted_filename(bs)); |
1407 | 333a96ec | Luiz Capitulino | } |
1408 | 333a96ec | Luiz Capitulino | } else if (password) { |
1409 | 333a96ec | Luiz Capitulino | error_set(errp, QERR_DEVICE_NOT_ENCRYPTED, bdrv_get_device_name(bs)); |
1410 | 333a96ec | Luiz Capitulino | } |
1411 | 333a96ec | Luiz Capitulino | } |
1412 | 333a96ec | Luiz Capitulino | |
1413 | 333a96ec | Luiz Capitulino | void qmp_change_blockdev(const char *device, const char *filename, |
1414 | 333a96ec | Luiz Capitulino | bool has_format, const char *format, Error **errp) |
1415 | 666daa68 | Markus Armbruster | { |
1416 | 666daa68 | Markus Armbruster | BlockDriverState *bs; |
1417 | 666daa68 | Markus Armbruster | BlockDriver *drv = NULL;
|
1418 | 666daa68 | Markus Armbruster | int bdrv_flags;
|
1419 | 92d48558 | Luiz Capitulino | Error *err = NULL;
|
1420 | 666daa68 | Markus Armbruster | |
1421 | 666daa68 | Markus Armbruster | bs = bdrv_find(device); |
1422 | 666daa68 | Markus Armbruster | if (!bs) {
|
1423 | 333a96ec | Luiz Capitulino | error_set(errp, QERR_DEVICE_NOT_FOUND, device); |
1424 | 333a96ec | Luiz Capitulino | return;
|
1425 | 666daa68 | Markus Armbruster | } |
1426 | 333a96ec | Luiz Capitulino | |
1427 | 333a96ec | Luiz Capitulino | if (format) {
|
1428 | b64ec4e4 | Fam Zheng | drv = bdrv_find_whitelisted_format(format, bs->read_only); |
1429 | 666daa68 | Markus Armbruster | if (!drv) {
|
1430 | 333a96ec | Luiz Capitulino | error_set(errp, QERR_INVALID_BLOCK_FORMAT, format); |
1431 | 333a96ec | Luiz Capitulino | return;
|
1432 | 666daa68 | Markus Armbruster | } |
1433 | 666daa68 | Markus Armbruster | } |
1434 | 333a96ec | Luiz Capitulino | |
1435 | 92d48558 | Luiz Capitulino | eject_device(bs, 0, &err);
|
1436 | 92d48558 | Luiz Capitulino | if (error_is_set(&err)) {
|
1437 | 333a96ec | Luiz Capitulino | error_propagate(errp, err); |
1438 | 333a96ec | Luiz Capitulino | return;
|
1439 | 666daa68 | Markus Armbruster | } |
1440 | 333a96ec | Luiz Capitulino | |
1441 | 528f7663 | Markus Armbruster | bdrv_flags = bdrv_is_read_only(bs) ? 0 : BDRV_O_RDWR;
|
1442 | 199630b6 | Blue Swirl | bdrv_flags |= bdrv_is_snapshot(bs) ? BDRV_O_SNAPSHOT : 0;
|
1443 | 333a96ec | Luiz Capitulino | |
1444 | 333a96ec | Luiz Capitulino | qmp_bdrv_open_encrypted(bs, filename, bdrv_flags, drv, NULL, errp);
|
1445 | 666daa68 | Markus Armbruster | } |
1446 | 9063f814 | Ryan Harper | |
1447 | 727f005e | Zhi Yong Wu | /* throttling disk I/O limits */
|
1448 | 80047da5 | Luiz Capitulino | void qmp_block_set_io_throttle(const char *device, int64_t bps, int64_t bps_rd, |
1449 | 3e9fab69 | Benoît Canet | int64_t bps_wr, |
1450 | 3e9fab69 | Benoît Canet | int64_t iops, |
1451 | 3e9fab69 | Benoît Canet | int64_t iops_rd, |
1452 | 3e9fab69 | Benoît Canet | int64_t iops_wr, |
1453 | 3e9fab69 | Benoît Canet | bool has_bps_max,
|
1454 | 3e9fab69 | Benoît Canet | int64_t bps_max, |
1455 | 3e9fab69 | Benoît Canet | bool has_bps_rd_max,
|
1456 | 3e9fab69 | Benoît Canet | int64_t bps_rd_max, |
1457 | 3e9fab69 | Benoît Canet | bool has_bps_wr_max,
|
1458 | 3e9fab69 | Benoît Canet | int64_t bps_wr_max, |
1459 | 3e9fab69 | Benoît Canet | bool has_iops_max,
|
1460 | 3e9fab69 | Benoît Canet | int64_t iops_max, |
1461 | 3e9fab69 | Benoît Canet | bool has_iops_rd_max,
|
1462 | 3e9fab69 | Benoît Canet | int64_t iops_rd_max, |
1463 | 3e9fab69 | Benoît Canet | bool has_iops_wr_max,
|
1464 | 2024c1df | Benoît Canet | int64_t iops_wr_max, |
1465 | 2024c1df | Benoît Canet | bool has_iops_size,
|
1466 | 2024c1df | Benoît Canet | int64_t iops_size, Error **errp) |
1467 | 727f005e | Zhi Yong Wu | { |
1468 | cc0681c4 | Benoît Canet | ThrottleConfig cfg; |
1469 | 727f005e | Zhi Yong Wu | BlockDriverState *bs; |
1470 | 727f005e | Zhi Yong Wu | |
1471 | 80047da5 | Luiz Capitulino | bs = bdrv_find(device); |
1472 | 727f005e | Zhi Yong Wu | if (!bs) {
|
1473 | 80047da5 | Luiz Capitulino | error_set(errp, QERR_DEVICE_NOT_FOUND, device); |
1474 | 80047da5 | Luiz Capitulino | return;
|
1475 | 727f005e | Zhi Yong Wu | } |
1476 | 727f005e | Zhi Yong Wu | |
1477 | cc0681c4 | Benoît Canet | memset(&cfg, 0, sizeof(cfg)); |
1478 | cc0681c4 | Benoît Canet | cfg.buckets[THROTTLE_BPS_TOTAL].avg = bps; |
1479 | cc0681c4 | Benoît Canet | cfg.buckets[THROTTLE_BPS_READ].avg = bps_rd; |
1480 | cc0681c4 | Benoît Canet | cfg.buckets[THROTTLE_BPS_WRITE].avg = bps_wr; |
1481 | cc0681c4 | Benoît Canet | |
1482 | cc0681c4 | Benoît Canet | cfg.buckets[THROTTLE_OPS_TOTAL].avg = iops; |
1483 | cc0681c4 | Benoît Canet | cfg.buckets[THROTTLE_OPS_READ].avg = iops_rd; |
1484 | cc0681c4 | Benoît Canet | cfg.buckets[THROTTLE_OPS_WRITE].avg = iops_wr; |
1485 | cc0681c4 | Benoît Canet | |
1486 | 3e9fab69 | Benoît Canet | if (has_bps_max) {
|
1487 | 3e9fab69 | Benoît Canet | cfg.buckets[THROTTLE_BPS_TOTAL].max = bps_max; |
1488 | 3e9fab69 | Benoît Canet | } |
1489 | 3e9fab69 | Benoît Canet | if (has_bps_rd_max) {
|
1490 | 3e9fab69 | Benoît Canet | cfg.buckets[THROTTLE_BPS_READ].max = bps_rd_max; |
1491 | 3e9fab69 | Benoît Canet | } |
1492 | 3e9fab69 | Benoît Canet | if (has_bps_wr_max) {
|
1493 | 3e9fab69 | Benoît Canet | cfg.buckets[THROTTLE_BPS_WRITE].max = bps_wr_max; |
1494 | 3e9fab69 | Benoît Canet | } |
1495 | 3e9fab69 | Benoît Canet | if (has_iops_max) {
|
1496 | 3e9fab69 | Benoît Canet | cfg.buckets[THROTTLE_OPS_TOTAL].max = iops_max; |
1497 | 3e9fab69 | Benoît Canet | } |
1498 | 3e9fab69 | Benoît Canet | if (has_iops_rd_max) {
|
1499 | 3e9fab69 | Benoît Canet | cfg.buckets[THROTTLE_OPS_READ].max = iops_rd_max; |
1500 | 3e9fab69 | Benoît Canet | } |
1501 | 3e9fab69 | Benoît Canet | if (has_iops_wr_max) {
|
1502 | 3e9fab69 | Benoît Canet | cfg.buckets[THROTTLE_OPS_WRITE].max = iops_wr_max; |
1503 | 3e9fab69 | Benoît Canet | } |
1504 | 727f005e | Zhi Yong Wu | |
1505 | 2024c1df | Benoît Canet | if (has_iops_size) {
|
1506 | 2024c1df | Benoît Canet | cfg.op_size = iops_size; |
1507 | 2024c1df | Benoît Canet | } |
1508 | cc0681c4 | Benoît Canet | |
1509 | cc0681c4 | Benoît Canet | if (!check_throttle_config(&cfg, errp)) {
|
1510 | 80047da5 | Luiz Capitulino | return;
|
1511 | 727f005e | Zhi Yong Wu | } |
1512 | 727f005e | Zhi Yong Wu | |
1513 | cc0681c4 | Benoît Canet | if (!bs->io_limits_enabled && throttle_enabled(&cfg)) {
|
1514 | 727f005e | Zhi Yong Wu | bdrv_io_limits_enable(bs); |
1515 | cc0681c4 | Benoît Canet | } else if (bs->io_limits_enabled && !throttle_enabled(&cfg)) { |
1516 | 727f005e | Zhi Yong Wu | bdrv_io_limits_disable(bs); |
1517 | cc0681c4 | Benoît Canet | } |
1518 | cc0681c4 | Benoît Canet | |
1519 | cc0681c4 | Benoît Canet | if (bs->io_limits_enabled) {
|
1520 | cc0681c4 | Benoît Canet | bdrv_set_io_limits(bs, &cfg); |
1521 | 727f005e | Zhi Yong Wu | } |
1522 | 727f005e | Zhi Yong Wu | } |
1523 | 727f005e | Zhi Yong Wu | |
1524 | 9063f814 | Ryan Harper | int do_drive_del(Monitor *mon, const QDict *qdict, QObject **ret_data) |
1525 | 9063f814 | Ryan Harper | { |
1526 | 9063f814 | Ryan Harper | const char *id = qdict_get_str(qdict, "id"); |
1527 | 9063f814 | Ryan Harper | BlockDriverState *bs; |
1528 | 9063f814 | Ryan Harper | |
1529 | 9063f814 | Ryan Harper | bs = bdrv_find(id); |
1530 | 9063f814 | Ryan Harper | if (!bs) {
|
1531 | 9063f814 | Ryan Harper | qerror_report(QERR_DEVICE_NOT_FOUND, id); |
1532 | 9063f814 | Ryan Harper | return -1; |
1533 | 9063f814 | Ryan Harper | } |
1534 | 8591675f | Marcelo Tosatti | if (bdrv_in_use(bs)) {
|
1535 | 8591675f | Marcelo Tosatti | qerror_report(QERR_DEVICE_IN_USE, id); |
1536 | 8591675f | Marcelo Tosatti | return -1; |
1537 | 8591675f | Marcelo Tosatti | } |
1538 | 9063f814 | Ryan Harper | |
1539 | 9063f814 | Ryan Harper | /* quiesce block driver; prevent further io */
|
1540 | 922453bc | Stefan Hajnoczi | bdrv_drain_all(); |
1541 | 9063f814 | Ryan Harper | bdrv_flush(bs); |
1542 | 9063f814 | Ryan Harper | bdrv_close(bs); |
1543 | 9063f814 | Ryan Harper | |
1544 | fa879d62 | Markus Armbruster | /* if we have a device attached to this BlockDriverState
|
1545 | d22b2f41 | Ryan Harper | * then we need to make the drive anonymous until the device
|
1546 | d22b2f41 | Ryan Harper | * can be removed. If this is a drive with no device backing
|
1547 | d22b2f41 | Ryan Harper | * then we can just get rid of the block driver state right here.
|
1548 | d22b2f41 | Ryan Harper | */
|
1549 | fa879d62 | Markus Armbruster | if (bdrv_get_attached_dev(bs)) {
|
1550 | d22b2f41 | Ryan Harper | bdrv_make_anon(bs); |
1551 | 293c51a6 | Stefan Hajnoczi | |
1552 | 293c51a6 | Stefan Hajnoczi | /* Further I/O must not pause the guest */
|
1553 | 293c51a6 | Stefan Hajnoczi | bdrv_set_on_error(bs, BLOCKDEV_ON_ERROR_REPORT, |
1554 | 293c51a6 | Stefan Hajnoczi | BLOCKDEV_ON_ERROR_REPORT); |
1555 | d22b2f41 | Ryan Harper | } else {
|
1556 | d22b2f41 | Ryan Harper | drive_uninit(drive_get_by_blockdev(bs)); |
1557 | 9063f814 | Ryan Harper | } |
1558 | 9063f814 | Ryan Harper | |
1559 | 9063f814 | Ryan Harper | return 0; |
1560 | 9063f814 | Ryan Harper | } |
1561 | 6d4a2b3a | Christoph Hellwig | |
1562 | 5e7caacb | Luiz Capitulino | void qmp_block_resize(const char *device, int64_t size, Error **errp) |
1563 | 6d4a2b3a | Christoph Hellwig | { |
1564 | 6d4a2b3a | Christoph Hellwig | BlockDriverState *bs; |
1565 | 8732901e | Kevin Wolf | int ret;
|
1566 | 6d4a2b3a | Christoph Hellwig | |
1567 | 6d4a2b3a | Christoph Hellwig | bs = bdrv_find(device); |
1568 | 6d4a2b3a | Christoph Hellwig | if (!bs) {
|
1569 | 5e7caacb | Luiz Capitulino | error_set(errp, QERR_DEVICE_NOT_FOUND, device); |
1570 | 5e7caacb | Luiz Capitulino | return;
|
1571 | 6d4a2b3a | Christoph Hellwig | } |
1572 | 6d4a2b3a | Christoph Hellwig | |
1573 | 6d4a2b3a | Christoph Hellwig | if (size < 0) { |
1574 | 939a1cc3 | Stefan Hajnoczi | error_set(errp, QERR_INVALID_PARAMETER_VALUE, "size", "a >0 size"); |
1575 | 5e7caacb | Luiz Capitulino | return;
|
1576 | 6d4a2b3a | Christoph Hellwig | } |
1577 | 6d4a2b3a | Christoph Hellwig | |
1578 | 92b7a08d | Peter Lieven | /* complete all in-flight operations before resizing the device */
|
1579 | 92b7a08d | Peter Lieven | bdrv_drain_all(); |
1580 | 92b7a08d | Peter Lieven | |
1581 | 8732901e | Kevin Wolf | ret = bdrv_truncate(bs, size); |
1582 | 8732901e | Kevin Wolf | switch (ret) {
|
1583 | 939a1cc3 | Stefan Hajnoczi | case 0: |
1584 | 939a1cc3 | Stefan Hajnoczi | break;
|
1585 | 939a1cc3 | Stefan Hajnoczi | case -ENOMEDIUM:
|
1586 | 939a1cc3 | Stefan Hajnoczi | error_set(errp, QERR_DEVICE_HAS_NO_MEDIUM, device); |
1587 | 939a1cc3 | Stefan Hajnoczi | break;
|
1588 | 939a1cc3 | Stefan Hajnoczi | case -ENOTSUP:
|
1589 | 939a1cc3 | Stefan Hajnoczi | error_set(errp, QERR_UNSUPPORTED); |
1590 | 939a1cc3 | Stefan Hajnoczi | break;
|
1591 | 939a1cc3 | Stefan Hajnoczi | case -EACCES:
|
1592 | 939a1cc3 | Stefan Hajnoczi | error_set(errp, QERR_DEVICE_IS_READ_ONLY, device); |
1593 | 939a1cc3 | Stefan Hajnoczi | break;
|
1594 | 939a1cc3 | Stefan Hajnoczi | case -EBUSY:
|
1595 | 939a1cc3 | Stefan Hajnoczi | error_set(errp, QERR_DEVICE_IN_USE, device); |
1596 | 939a1cc3 | Stefan Hajnoczi | break;
|
1597 | 939a1cc3 | Stefan Hajnoczi | default:
|
1598 | 8732901e | Kevin Wolf | error_setg_errno(errp, -ret, "Could not resize");
|
1599 | 939a1cc3 | Stefan Hajnoczi | break;
|
1600 | 6d4a2b3a | Christoph Hellwig | } |
1601 | 6d4a2b3a | Christoph Hellwig | } |
1602 | 12bd451f | Stefan Hajnoczi | |
1603 | 9abf2dba | Jeff Cody | static void block_job_cb(void *opaque, int ret) |
1604 | 12bd451f | Stefan Hajnoczi | { |
1605 | 12bd451f | Stefan Hajnoczi | BlockDriverState *bs = opaque; |
1606 | 12bd451f | Stefan Hajnoczi | QObject *obj; |
1607 | 12bd451f | Stefan Hajnoczi | |
1608 | 9abf2dba | Jeff Cody | trace_block_job_cb(bs, bs->job, ret); |
1609 | 12bd451f | Stefan Hajnoczi | |
1610 | 12bd451f | Stefan Hajnoczi | assert(bs->job); |
1611 | 12bd451f | Stefan Hajnoczi | obj = qobject_from_block_job(bs->job); |
1612 | 12bd451f | Stefan Hajnoczi | if (ret < 0) { |
1613 | 12bd451f | Stefan Hajnoczi | QDict *dict = qobject_to_qdict(obj); |
1614 | 12bd451f | Stefan Hajnoczi | qdict_put(dict, "error", qstring_from_str(strerror(-ret)));
|
1615 | 12bd451f | Stefan Hajnoczi | } |
1616 | 12bd451f | Stefan Hajnoczi | |
1617 | 370521a1 | Stefan Hajnoczi | if (block_job_is_cancelled(bs->job)) {
|
1618 | 370521a1 | Stefan Hajnoczi | monitor_protocol_event(QEVENT_BLOCK_JOB_CANCELLED, obj); |
1619 | 370521a1 | Stefan Hajnoczi | } else {
|
1620 | 370521a1 | Stefan Hajnoczi | monitor_protocol_event(QEVENT_BLOCK_JOB_COMPLETED, obj); |
1621 | 370521a1 | Stefan Hajnoczi | } |
1622 | 12bd451f | Stefan Hajnoczi | qobject_decref(obj); |
1623 | aa398a5c | Stefan Hajnoczi | |
1624 | fa510ebf | Fam Zheng | bdrv_put_ref_bh_schedule(bs); |
1625 | 12bd451f | Stefan Hajnoczi | } |
1626 | 12bd451f | Stefan Hajnoczi | |
1627 | 12bd451f | Stefan Hajnoczi | void qmp_block_stream(const char *device, bool has_base, |
1628 | 1d809098 | Paolo Bonzini | const char *base, bool has_speed, int64_t speed, |
1629 | 1d809098 | Paolo Bonzini | bool has_on_error, BlockdevOnError on_error,
|
1630 | 1d809098 | Paolo Bonzini | Error **errp) |
1631 | 12bd451f | Stefan Hajnoczi | { |
1632 | 12bd451f | Stefan Hajnoczi | BlockDriverState *bs; |
1633 | c8c3080f | Marcelo Tosatti | BlockDriverState *base_bs = NULL;
|
1634 | fd7f8c65 | Stefan Hajnoczi | Error *local_err = NULL;
|
1635 | 12bd451f | Stefan Hajnoczi | |
1636 | 1d809098 | Paolo Bonzini | if (!has_on_error) {
|
1637 | 1d809098 | Paolo Bonzini | on_error = BLOCKDEV_ON_ERROR_REPORT; |
1638 | 1d809098 | Paolo Bonzini | } |
1639 | 1d809098 | Paolo Bonzini | |
1640 | 12bd451f | Stefan Hajnoczi | bs = bdrv_find(device); |
1641 | 12bd451f | Stefan Hajnoczi | if (!bs) {
|
1642 | 12bd451f | Stefan Hajnoczi | error_set(errp, QERR_DEVICE_NOT_FOUND, device); |
1643 | 12bd451f | Stefan Hajnoczi | return;
|
1644 | 12bd451f | Stefan Hajnoczi | } |
1645 | 12bd451f | Stefan Hajnoczi | |
1646 | 12bd451f | Stefan Hajnoczi | if (base) {
|
1647 | c8c3080f | Marcelo Tosatti | base_bs = bdrv_find_backing_image(bs, base); |
1648 | c8c3080f | Marcelo Tosatti | if (base_bs == NULL) { |
1649 | c8c3080f | Marcelo Tosatti | error_set(errp, QERR_BASE_NOT_FOUND, base); |
1650 | c8c3080f | Marcelo Tosatti | return;
|
1651 | c8c3080f | Marcelo Tosatti | } |
1652 | 12bd451f | Stefan Hajnoczi | } |
1653 | 12bd451f | Stefan Hajnoczi | |
1654 | c83c66c3 | Stefan Hajnoczi | stream_start(bs, base_bs, base, has_speed ? speed : 0,
|
1655 | 1d809098 | Paolo Bonzini | on_error, block_job_cb, bs, &local_err); |
1656 | fd7f8c65 | Stefan Hajnoczi | if (error_is_set(&local_err)) {
|
1657 | fd7f8c65 | Stefan Hajnoczi | error_propagate(errp, local_err); |
1658 | fd7f8c65 | Stefan Hajnoczi | return;
|
1659 | 12bd451f | Stefan Hajnoczi | } |
1660 | 12bd451f | Stefan Hajnoczi | |
1661 | 12bd451f | Stefan Hajnoczi | trace_qmp_block_stream(bs, bs->job); |
1662 | 12bd451f | Stefan Hajnoczi | } |
1663 | 2d47c6e9 | Stefan Hajnoczi | |
1664 | ed61fc10 | Jeff Cody | void qmp_block_commit(const char *device, |
1665 | ed61fc10 | Jeff Cody | bool has_base, const char *base, const char *top, |
1666 | ed61fc10 | Jeff Cody | bool has_speed, int64_t speed,
|
1667 | ed61fc10 | Jeff Cody | Error **errp) |
1668 | ed61fc10 | Jeff Cody | { |
1669 | ed61fc10 | Jeff Cody | BlockDriverState *bs; |
1670 | ed61fc10 | Jeff Cody | BlockDriverState *base_bs, *top_bs; |
1671 | ed61fc10 | Jeff Cody | Error *local_err = NULL;
|
1672 | ed61fc10 | Jeff Cody | /* This will be part of the QMP command, if/when the
|
1673 | ed61fc10 | Jeff Cody | * BlockdevOnError change for blkmirror makes it in
|
1674 | ed61fc10 | Jeff Cody | */
|
1675 | 92aa5c6d | Paolo Bonzini | BlockdevOnError on_error = BLOCKDEV_ON_ERROR_REPORT; |
1676 | ed61fc10 | Jeff Cody | |
1677 | ed61fc10 | Jeff Cody | /* drain all i/o before commits */
|
1678 | ed61fc10 | Jeff Cody | bdrv_drain_all(); |
1679 | ed61fc10 | Jeff Cody | |
1680 | ed61fc10 | Jeff Cody | bs = bdrv_find(device); |
1681 | ed61fc10 | Jeff Cody | if (!bs) {
|
1682 | ed61fc10 | Jeff Cody | error_set(errp, QERR_DEVICE_NOT_FOUND, device); |
1683 | ed61fc10 | Jeff Cody | return;
|
1684 | ed61fc10 | Jeff Cody | } |
1685 | ed61fc10 | Jeff Cody | |
1686 | ed61fc10 | Jeff Cody | /* default top_bs is the active layer */
|
1687 | ed61fc10 | Jeff Cody | top_bs = bs; |
1688 | ed61fc10 | Jeff Cody | |
1689 | ed61fc10 | Jeff Cody | if (top) {
|
1690 | ed61fc10 | Jeff Cody | if (strcmp(bs->filename, top) != 0) { |
1691 | ed61fc10 | Jeff Cody | top_bs = bdrv_find_backing_image(bs, top); |
1692 | ed61fc10 | Jeff Cody | } |
1693 | ed61fc10 | Jeff Cody | } |
1694 | ed61fc10 | Jeff Cody | |
1695 | ed61fc10 | Jeff Cody | if (top_bs == NULL) { |
1696 | ed61fc10 | Jeff Cody | error_setg(errp, "Top image file %s not found", top ? top : "NULL"); |
1697 | ed61fc10 | Jeff Cody | return;
|
1698 | ed61fc10 | Jeff Cody | } |
1699 | ed61fc10 | Jeff Cody | |
1700 | d5208c45 | Jeff Cody | if (has_base && base) {
|
1701 | d5208c45 | Jeff Cody | base_bs = bdrv_find_backing_image(top_bs, base); |
1702 | d5208c45 | Jeff Cody | } else {
|
1703 | d5208c45 | Jeff Cody | base_bs = bdrv_find_base(top_bs); |
1704 | d5208c45 | Jeff Cody | } |
1705 | d5208c45 | Jeff Cody | |
1706 | d5208c45 | Jeff Cody | if (base_bs == NULL) { |
1707 | d5208c45 | Jeff Cody | error_set(errp, QERR_BASE_NOT_FOUND, base ? base : "NULL");
|
1708 | d5208c45 | Jeff Cody | return;
|
1709 | d5208c45 | Jeff Cody | } |
1710 | d5208c45 | Jeff Cody | |
1711 | ed61fc10 | Jeff Cody | commit_start(bs, base_bs, top_bs, speed, on_error, block_job_cb, bs, |
1712 | ed61fc10 | Jeff Cody | &local_err); |
1713 | ed61fc10 | Jeff Cody | if (local_err != NULL) { |
1714 | ed61fc10 | Jeff Cody | error_propagate(errp, local_err); |
1715 | ed61fc10 | Jeff Cody | return;
|
1716 | ed61fc10 | Jeff Cody | } |
1717 | ed61fc10 | Jeff Cody | } |
1718 | ed61fc10 | Jeff Cody | |
1719 | 99a9addf | Stefan Hajnoczi | void qmp_drive_backup(const char *device, const char *target, |
1720 | 99a9addf | Stefan Hajnoczi | bool has_format, const char *format, |
1721 | b53169ea | Stefan Hajnoczi | enum MirrorSyncMode sync,
|
1722 | 99a9addf | Stefan Hajnoczi | bool has_mode, enum NewImageMode mode, |
1723 | 99a9addf | Stefan Hajnoczi | bool has_speed, int64_t speed,
|
1724 | 99a9addf | Stefan Hajnoczi | bool has_on_source_error, BlockdevOnError on_source_error,
|
1725 | 99a9addf | Stefan Hajnoczi | bool has_on_target_error, BlockdevOnError on_target_error,
|
1726 | 99a9addf | Stefan Hajnoczi | Error **errp) |
1727 | 99a9addf | Stefan Hajnoczi | { |
1728 | 99a9addf | Stefan Hajnoczi | BlockDriverState *bs; |
1729 | 99a9addf | Stefan Hajnoczi | BlockDriverState *target_bs; |
1730 | fc5d3f84 | Ian Main | BlockDriverState *source = NULL;
|
1731 | 99a9addf | Stefan Hajnoczi | BlockDriver *drv = NULL;
|
1732 | 99a9addf | Stefan Hajnoczi | Error *local_err = NULL;
|
1733 | 99a9addf | Stefan Hajnoczi | int flags;
|
1734 | 99a9addf | Stefan Hajnoczi | int64_t size; |
1735 | 99a9addf | Stefan Hajnoczi | int ret;
|
1736 | 99a9addf | Stefan Hajnoczi | |
1737 | 99a9addf | Stefan Hajnoczi | if (!has_speed) {
|
1738 | 99a9addf | Stefan Hajnoczi | speed = 0;
|
1739 | 99a9addf | Stefan Hajnoczi | } |
1740 | 99a9addf | Stefan Hajnoczi | if (!has_on_source_error) {
|
1741 | 99a9addf | Stefan Hajnoczi | on_source_error = BLOCKDEV_ON_ERROR_REPORT; |
1742 | 99a9addf | Stefan Hajnoczi | } |
1743 | 99a9addf | Stefan Hajnoczi | if (!has_on_target_error) {
|
1744 | 99a9addf | Stefan Hajnoczi | on_target_error = BLOCKDEV_ON_ERROR_REPORT; |
1745 | 99a9addf | Stefan Hajnoczi | } |
1746 | 99a9addf | Stefan Hajnoczi | if (!has_mode) {
|
1747 | 99a9addf | Stefan Hajnoczi | mode = NEW_IMAGE_MODE_ABSOLUTE_PATHS; |
1748 | 99a9addf | Stefan Hajnoczi | } |
1749 | 99a9addf | Stefan Hajnoczi | |
1750 | 99a9addf | Stefan Hajnoczi | bs = bdrv_find(device); |
1751 | 99a9addf | Stefan Hajnoczi | if (!bs) {
|
1752 | 99a9addf | Stefan Hajnoczi | error_set(errp, QERR_DEVICE_NOT_FOUND, device); |
1753 | 99a9addf | Stefan Hajnoczi | return;
|
1754 | 99a9addf | Stefan Hajnoczi | } |
1755 | 99a9addf | Stefan Hajnoczi | |
1756 | 99a9addf | Stefan Hajnoczi | if (!bdrv_is_inserted(bs)) {
|
1757 | 99a9addf | Stefan Hajnoczi | error_set(errp, QERR_DEVICE_HAS_NO_MEDIUM, device); |
1758 | 99a9addf | Stefan Hajnoczi | return;
|
1759 | 99a9addf | Stefan Hajnoczi | } |
1760 | 99a9addf | Stefan Hajnoczi | |
1761 | 99a9addf | Stefan Hajnoczi | if (!has_format) {
|
1762 | 99a9addf | Stefan Hajnoczi | format = mode == NEW_IMAGE_MODE_EXISTING ? NULL : bs->drv->format_name;
|
1763 | 99a9addf | Stefan Hajnoczi | } |
1764 | 99a9addf | Stefan Hajnoczi | if (format) {
|
1765 | 99a9addf | Stefan Hajnoczi | drv = bdrv_find_format(format); |
1766 | 99a9addf | Stefan Hajnoczi | if (!drv) {
|
1767 | 99a9addf | Stefan Hajnoczi | error_set(errp, QERR_INVALID_BLOCK_FORMAT, format); |
1768 | 99a9addf | Stefan Hajnoczi | return;
|
1769 | 99a9addf | Stefan Hajnoczi | } |
1770 | 99a9addf | Stefan Hajnoczi | } |
1771 | 99a9addf | Stefan Hajnoczi | |
1772 | 99a9addf | Stefan Hajnoczi | if (bdrv_in_use(bs)) {
|
1773 | 99a9addf | Stefan Hajnoczi | error_set(errp, QERR_DEVICE_IN_USE, device); |
1774 | 99a9addf | Stefan Hajnoczi | return;
|
1775 | 99a9addf | Stefan Hajnoczi | } |
1776 | 99a9addf | Stefan Hajnoczi | |
1777 | 99a9addf | Stefan Hajnoczi | flags = bs->open_flags | BDRV_O_RDWR; |
1778 | 99a9addf | Stefan Hajnoczi | |
1779 | fc5d3f84 | Ian Main | /* See if we have a backing HD we can use to create our new image
|
1780 | fc5d3f84 | Ian Main | * on top of. */
|
1781 | fc5d3f84 | Ian Main | if (sync == MIRROR_SYNC_MODE_TOP) {
|
1782 | fc5d3f84 | Ian Main | source = bs->backing_hd; |
1783 | fc5d3f84 | Ian Main | if (!source) {
|
1784 | fc5d3f84 | Ian Main | sync = MIRROR_SYNC_MODE_FULL; |
1785 | fc5d3f84 | Ian Main | } |
1786 | fc5d3f84 | Ian Main | } |
1787 | fc5d3f84 | Ian Main | if (sync == MIRROR_SYNC_MODE_NONE) {
|
1788 | fc5d3f84 | Ian Main | source = bs; |
1789 | fc5d3f84 | Ian Main | } |
1790 | fc5d3f84 | Ian Main | |
1791 | 99a9addf | Stefan Hajnoczi | size = bdrv_getlength(bs); |
1792 | 99a9addf | Stefan Hajnoczi | if (size < 0) { |
1793 | 99a9addf | Stefan Hajnoczi | error_setg_errno(errp, -size, "bdrv_getlength failed");
|
1794 | 99a9addf | Stefan Hajnoczi | return;
|
1795 | 99a9addf | Stefan Hajnoczi | } |
1796 | 99a9addf | Stefan Hajnoczi | |
1797 | 99a9addf | Stefan Hajnoczi | if (mode != NEW_IMAGE_MODE_EXISTING) {
|
1798 | 99a9addf | Stefan Hajnoczi | assert(format && drv); |
1799 | fc5d3f84 | Ian Main | if (source) {
|
1800 | fc5d3f84 | Ian Main | bdrv_img_create(target, format, source->filename, |
1801 | fc5d3f84 | Ian Main | source->drv->format_name, NULL,
|
1802 | fc5d3f84 | Ian Main | size, flags, &local_err, false);
|
1803 | fc5d3f84 | Ian Main | } else {
|
1804 | fc5d3f84 | Ian Main | bdrv_img_create(target, format, NULL, NULL, NULL, |
1805 | fc5d3f84 | Ian Main | size, flags, &local_err, false);
|
1806 | fc5d3f84 | Ian Main | } |
1807 | 99a9addf | Stefan Hajnoczi | } |
1808 | 99a9addf | Stefan Hajnoczi | |
1809 | 99a9addf | Stefan Hajnoczi | if (error_is_set(&local_err)) {
|
1810 | 99a9addf | Stefan Hajnoczi | error_propagate(errp, local_err); |
1811 | 99a9addf | Stefan Hajnoczi | return;
|
1812 | 99a9addf | Stefan Hajnoczi | } |
1813 | 99a9addf | Stefan Hajnoczi | |
1814 | 99a9addf | Stefan Hajnoczi | target_bs = bdrv_new("");
|
1815 | 34b5d2c6 | Max Reitz | ret = bdrv_open(target_bs, target, NULL, flags, drv, &local_err);
|
1816 | 99a9addf | Stefan Hajnoczi | if (ret < 0) { |
1817 | 4f6fd349 | Fam Zheng | bdrv_unref(target_bs); |
1818 | 34b5d2c6 | Max Reitz | error_propagate(errp, local_err); |
1819 | 99a9addf | Stefan Hajnoczi | return;
|
1820 | 99a9addf | Stefan Hajnoczi | } |
1821 | 99a9addf | Stefan Hajnoczi | |
1822 | fc5d3f84 | Ian Main | backup_start(bs, target_bs, speed, sync, on_source_error, on_target_error, |
1823 | 99a9addf | Stefan Hajnoczi | block_job_cb, bs, &local_err); |
1824 | 99a9addf | Stefan Hajnoczi | if (local_err != NULL) { |
1825 | 4f6fd349 | Fam Zheng | bdrv_unref(target_bs); |
1826 | 99a9addf | Stefan Hajnoczi | error_propagate(errp, local_err); |
1827 | 99a9addf | Stefan Hajnoczi | return;
|
1828 | 99a9addf | Stefan Hajnoczi | } |
1829 | 99a9addf | Stefan Hajnoczi | } |
1830 | 99a9addf | Stefan Hajnoczi | |
1831 | 08e4ed6c | Paolo Bonzini | #define DEFAULT_MIRROR_BUF_SIZE (10 << 20) |
1832 | 08e4ed6c | Paolo Bonzini | |
1833 | d9b902db | Paolo Bonzini | void qmp_drive_mirror(const char *device, const char *target, |
1834 | d9b902db | Paolo Bonzini | bool has_format, const char *format, |
1835 | d9b902db | Paolo Bonzini | enum MirrorSyncMode sync,
|
1836 | d9b902db | Paolo Bonzini | bool has_mode, enum NewImageMode mode, |
1837 | b952b558 | Paolo Bonzini | bool has_speed, int64_t speed,
|
1838 | eee13dfe | Paolo Bonzini | bool has_granularity, uint32_t granularity,
|
1839 | 08e4ed6c | Paolo Bonzini | bool has_buf_size, int64_t buf_size,
|
1840 | b952b558 | Paolo Bonzini | bool has_on_source_error, BlockdevOnError on_source_error,
|
1841 | b952b558 | Paolo Bonzini | bool has_on_target_error, BlockdevOnError on_target_error,
|
1842 | b952b558 | Paolo Bonzini | Error **errp) |
1843 | d9b902db | Paolo Bonzini | { |
1844 | d9b902db | Paolo Bonzini | BlockDriverState *bs; |
1845 | d9b902db | Paolo Bonzini | BlockDriverState *source, *target_bs; |
1846 | d9b902db | Paolo Bonzini | BlockDriver *drv = NULL;
|
1847 | d9b902db | Paolo Bonzini | Error *local_err = NULL;
|
1848 | d9b902db | Paolo Bonzini | int flags;
|
1849 | ac3c5d83 | Stefan Hajnoczi | int64_t size; |
1850 | d9b902db | Paolo Bonzini | int ret;
|
1851 | d9b902db | Paolo Bonzini | |
1852 | d9b902db | Paolo Bonzini | if (!has_speed) {
|
1853 | d9b902db | Paolo Bonzini | speed = 0;
|
1854 | d9b902db | Paolo Bonzini | } |
1855 | b952b558 | Paolo Bonzini | if (!has_on_source_error) {
|
1856 | b952b558 | Paolo Bonzini | on_source_error = BLOCKDEV_ON_ERROR_REPORT; |
1857 | b952b558 | Paolo Bonzini | } |
1858 | b952b558 | Paolo Bonzini | if (!has_on_target_error) {
|
1859 | b952b558 | Paolo Bonzini | on_target_error = BLOCKDEV_ON_ERROR_REPORT; |
1860 | b952b558 | Paolo Bonzini | } |
1861 | d9b902db | Paolo Bonzini | if (!has_mode) {
|
1862 | d9b902db | Paolo Bonzini | mode = NEW_IMAGE_MODE_ABSOLUTE_PATHS; |
1863 | d9b902db | Paolo Bonzini | } |
1864 | eee13dfe | Paolo Bonzini | if (!has_granularity) {
|
1865 | eee13dfe | Paolo Bonzini | granularity = 0;
|
1866 | eee13dfe | Paolo Bonzini | } |
1867 | 08e4ed6c | Paolo Bonzini | if (!has_buf_size) {
|
1868 | 08e4ed6c | Paolo Bonzini | buf_size = DEFAULT_MIRROR_BUF_SIZE; |
1869 | 08e4ed6c | Paolo Bonzini | } |
1870 | 08e4ed6c | Paolo Bonzini | |
1871 | eee13dfe | Paolo Bonzini | if (granularity != 0 && (granularity < 512 || granularity > 1048576 * 64)) { |
1872 | eee13dfe | Paolo Bonzini | error_set(errp, QERR_INVALID_PARAMETER, device); |
1873 | eee13dfe | Paolo Bonzini | return;
|
1874 | eee13dfe | Paolo Bonzini | } |
1875 | eee13dfe | Paolo Bonzini | if (granularity & (granularity - 1)) { |
1876 | eee13dfe | Paolo Bonzini | error_set(errp, QERR_INVALID_PARAMETER, device); |
1877 | eee13dfe | Paolo Bonzini | return;
|
1878 | eee13dfe | Paolo Bonzini | } |
1879 | d9b902db | Paolo Bonzini | |
1880 | d9b902db | Paolo Bonzini | bs = bdrv_find(device); |
1881 | d9b902db | Paolo Bonzini | if (!bs) {
|
1882 | d9b902db | Paolo Bonzini | error_set(errp, QERR_DEVICE_NOT_FOUND, device); |
1883 | d9b902db | Paolo Bonzini | return;
|
1884 | d9b902db | Paolo Bonzini | } |
1885 | d9b902db | Paolo Bonzini | |
1886 | d9b902db | Paolo Bonzini | if (!bdrv_is_inserted(bs)) {
|
1887 | d9b902db | Paolo Bonzini | error_set(errp, QERR_DEVICE_HAS_NO_MEDIUM, device); |
1888 | d9b902db | Paolo Bonzini | return;
|
1889 | d9b902db | Paolo Bonzini | } |
1890 | d9b902db | Paolo Bonzini | |
1891 | d9b902db | Paolo Bonzini | if (!has_format) {
|
1892 | d9b902db | Paolo Bonzini | format = mode == NEW_IMAGE_MODE_EXISTING ? NULL : bs->drv->format_name;
|
1893 | d9b902db | Paolo Bonzini | } |
1894 | d9b902db | Paolo Bonzini | if (format) {
|
1895 | d9b902db | Paolo Bonzini | drv = bdrv_find_format(format); |
1896 | d9b902db | Paolo Bonzini | if (!drv) {
|
1897 | d9b902db | Paolo Bonzini | error_set(errp, QERR_INVALID_BLOCK_FORMAT, format); |
1898 | d9b902db | Paolo Bonzini | return;
|
1899 | d9b902db | Paolo Bonzini | } |
1900 | d9b902db | Paolo Bonzini | } |
1901 | d9b902db | Paolo Bonzini | |
1902 | d9b902db | Paolo Bonzini | if (bdrv_in_use(bs)) {
|
1903 | d9b902db | Paolo Bonzini | error_set(errp, QERR_DEVICE_IN_USE, device); |
1904 | d9b902db | Paolo Bonzini | return;
|
1905 | d9b902db | Paolo Bonzini | } |
1906 | d9b902db | Paolo Bonzini | |
1907 | d9b902db | Paolo Bonzini | flags = bs->open_flags | BDRV_O_RDWR; |
1908 | d9b902db | Paolo Bonzini | source = bs->backing_hd; |
1909 | d9b902db | Paolo Bonzini | if (!source && sync == MIRROR_SYNC_MODE_TOP) {
|
1910 | d9b902db | Paolo Bonzini | sync = MIRROR_SYNC_MODE_FULL; |
1911 | d9b902db | Paolo Bonzini | } |
1912 | d9b902db | Paolo Bonzini | |
1913 | ac3c5d83 | Stefan Hajnoczi | size = bdrv_getlength(bs); |
1914 | ac3c5d83 | Stefan Hajnoczi | if (size < 0) { |
1915 | ac3c5d83 | Stefan Hajnoczi | error_setg_errno(errp, -size, "bdrv_getlength failed");
|
1916 | ac3c5d83 | Stefan Hajnoczi | return;
|
1917 | ac3c5d83 | Stefan Hajnoczi | } |
1918 | ac3c5d83 | Stefan Hajnoczi | |
1919 | d9b902db | Paolo Bonzini | if (sync == MIRROR_SYNC_MODE_FULL && mode != NEW_IMAGE_MODE_EXISTING) {
|
1920 | d9b902db | Paolo Bonzini | /* create new image w/o backing file */
|
1921 | d9b902db | Paolo Bonzini | assert(format && drv); |
1922 | cf8f2426 | Luiz Capitulino | bdrv_img_create(target, format, |
1923 | f382d43a | Miroslav Rezanina | NULL, NULL, NULL, size, flags, &local_err, false); |
1924 | d9b902db | Paolo Bonzini | } else {
|
1925 | d9b902db | Paolo Bonzini | switch (mode) {
|
1926 | d9b902db | Paolo Bonzini | case NEW_IMAGE_MODE_EXISTING:
|
1927 | d9b902db | Paolo Bonzini | ret = 0;
|
1928 | d9b902db | Paolo Bonzini | break;
|
1929 | d9b902db | Paolo Bonzini | case NEW_IMAGE_MODE_ABSOLUTE_PATHS:
|
1930 | d9b902db | Paolo Bonzini | /* create new image with backing file */
|
1931 | cf8f2426 | Luiz Capitulino | bdrv_img_create(target, format, |
1932 | cf8f2426 | Luiz Capitulino | source->filename, |
1933 | cf8f2426 | Luiz Capitulino | source->drv->format_name, |
1934 | f382d43a | Miroslav Rezanina | NULL, size, flags, &local_err, false); |
1935 | d9b902db | Paolo Bonzini | break;
|
1936 | d9b902db | Paolo Bonzini | default:
|
1937 | d9b902db | Paolo Bonzini | abort(); |
1938 | d9b902db | Paolo Bonzini | } |
1939 | d9b902db | Paolo Bonzini | } |
1940 | d9b902db | Paolo Bonzini | |
1941 | cf8f2426 | Luiz Capitulino | if (error_is_set(&local_err)) {
|
1942 | cf8f2426 | Luiz Capitulino | error_propagate(errp, local_err); |
1943 | d9b902db | Paolo Bonzini | return;
|
1944 | d9b902db | Paolo Bonzini | } |
1945 | d9b902db | Paolo Bonzini | |
1946 | b812f671 | Paolo Bonzini | /* Mirroring takes care of copy-on-write using the source's backing
|
1947 | b812f671 | Paolo Bonzini | * file.
|
1948 | b812f671 | Paolo Bonzini | */
|
1949 | d9b902db | Paolo Bonzini | target_bs = bdrv_new("");
|
1950 | 34b5d2c6 | Max Reitz | ret = bdrv_open(target_bs, target, NULL, flags | BDRV_O_NO_BACKING, drv,
|
1951 | 34b5d2c6 | Max Reitz | &local_err); |
1952 | d9b902db | Paolo Bonzini | if (ret < 0) { |
1953 | 4f6fd349 | Fam Zheng | bdrv_unref(target_bs); |
1954 | 34b5d2c6 | Max Reitz | error_propagate(errp, local_err); |
1955 | d9b902db | Paolo Bonzini | return;
|
1956 | d9b902db | Paolo Bonzini | } |
1957 | d9b902db | Paolo Bonzini | |
1958 | 08e4ed6c | Paolo Bonzini | mirror_start(bs, target_bs, speed, granularity, buf_size, sync, |
1959 | eee13dfe | Paolo Bonzini | on_source_error, on_target_error, |
1960 | b952b558 | Paolo Bonzini | block_job_cb, bs, &local_err); |
1961 | d9b902db | Paolo Bonzini | if (local_err != NULL) { |
1962 | 4f6fd349 | Fam Zheng | bdrv_unref(target_bs); |
1963 | d9b902db | Paolo Bonzini | error_propagate(errp, local_err); |
1964 | d9b902db | Paolo Bonzini | return;
|
1965 | d9b902db | Paolo Bonzini | } |
1966 | d9b902db | Paolo Bonzini | } |
1967 | d9b902db | Paolo Bonzini | |
1968 | 2d47c6e9 | Stefan Hajnoczi | static BlockJob *find_block_job(const char *device) |
1969 | 2d47c6e9 | Stefan Hajnoczi | { |
1970 | 2d47c6e9 | Stefan Hajnoczi | BlockDriverState *bs; |
1971 | 2d47c6e9 | Stefan Hajnoczi | |
1972 | 2d47c6e9 | Stefan Hajnoczi | bs = bdrv_find(device); |
1973 | 2d47c6e9 | Stefan Hajnoczi | if (!bs || !bs->job) {
|
1974 | 2d47c6e9 | Stefan Hajnoczi | return NULL; |
1975 | 2d47c6e9 | Stefan Hajnoczi | } |
1976 | 2d47c6e9 | Stefan Hajnoczi | return bs->job;
|
1977 | 2d47c6e9 | Stefan Hajnoczi | } |
1978 | 2d47c6e9 | Stefan Hajnoczi | |
1979 | 882ec7ce | Stefan Hajnoczi | void qmp_block_job_set_speed(const char *device, int64_t speed, Error **errp) |
1980 | 2d47c6e9 | Stefan Hajnoczi | { |
1981 | 2d47c6e9 | Stefan Hajnoczi | BlockJob *job = find_block_job(device); |
1982 | 2d47c6e9 | Stefan Hajnoczi | |
1983 | 2d47c6e9 | Stefan Hajnoczi | if (!job) {
|
1984 | 7ef15070 | Paolo Bonzini | error_set(errp, QERR_BLOCK_JOB_NOT_ACTIVE, device); |
1985 | 2d47c6e9 | Stefan Hajnoczi | return;
|
1986 | 2d47c6e9 | Stefan Hajnoczi | } |
1987 | 2d47c6e9 | Stefan Hajnoczi | |
1988 | 882ec7ce | Stefan Hajnoczi | block_job_set_speed(job, speed, errp); |
1989 | 2d47c6e9 | Stefan Hajnoczi | } |
1990 | 370521a1 | Stefan Hajnoczi | |
1991 | 6e37fb81 | Paolo Bonzini | void qmp_block_job_cancel(const char *device, |
1992 | 6e37fb81 | Paolo Bonzini | bool has_force, bool force, Error **errp) |
1993 | 370521a1 | Stefan Hajnoczi | { |
1994 | 370521a1 | Stefan Hajnoczi | BlockJob *job = find_block_job(device); |
1995 | 370521a1 | Stefan Hajnoczi | |
1996 | 6e37fb81 | Paolo Bonzini | if (!has_force) {
|
1997 | 6e37fb81 | Paolo Bonzini | force = false;
|
1998 | 6e37fb81 | Paolo Bonzini | } |
1999 | 6e37fb81 | Paolo Bonzini | |
2000 | 370521a1 | Stefan Hajnoczi | if (!job) {
|
2001 | 7ef15070 | Paolo Bonzini | error_set(errp, QERR_BLOCK_JOB_NOT_ACTIVE, device); |
2002 | 370521a1 | Stefan Hajnoczi | return;
|
2003 | 370521a1 | Stefan Hajnoczi | } |
2004 | 6e37fb81 | Paolo Bonzini | if (job->paused && !force) {
|
2005 | 8acc72a4 | Paolo Bonzini | error_set(errp, QERR_BLOCK_JOB_PAUSED, device); |
2006 | 8acc72a4 | Paolo Bonzini | return;
|
2007 | 8acc72a4 | Paolo Bonzini | } |
2008 | 370521a1 | Stefan Hajnoczi | |
2009 | 370521a1 | Stefan Hajnoczi | trace_qmp_block_job_cancel(job); |
2010 | 370521a1 | Stefan Hajnoczi | block_job_cancel(job); |
2011 | 370521a1 | Stefan Hajnoczi | } |
2012 | fb5458cd | Stefan Hajnoczi | |
2013 | 6e37fb81 | Paolo Bonzini | void qmp_block_job_pause(const char *device, Error **errp) |
2014 | 6e37fb81 | Paolo Bonzini | { |
2015 | 6e37fb81 | Paolo Bonzini | BlockJob *job = find_block_job(device); |
2016 | 6e37fb81 | Paolo Bonzini | |
2017 | 6e37fb81 | Paolo Bonzini | if (!job) {
|
2018 | 6e37fb81 | Paolo Bonzini | error_set(errp, QERR_BLOCK_JOB_NOT_ACTIVE, device); |
2019 | 6e37fb81 | Paolo Bonzini | return;
|
2020 | 6e37fb81 | Paolo Bonzini | } |
2021 | 6e37fb81 | Paolo Bonzini | |
2022 | 6e37fb81 | Paolo Bonzini | trace_qmp_block_job_pause(job); |
2023 | 6e37fb81 | Paolo Bonzini | block_job_pause(job); |
2024 | 6e37fb81 | Paolo Bonzini | } |
2025 | 6e37fb81 | Paolo Bonzini | |
2026 | 6e37fb81 | Paolo Bonzini | void qmp_block_job_resume(const char *device, Error **errp) |
2027 | 6e37fb81 | Paolo Bonzini | { |
2028 | 6e37fb81 | Paolo Bonzini | BlockJob *job = find_block_job(device); |
2029 | 6e37fb81 | Paolo Bonzini | |
2030 | 6e37fb81 | Paolo Bonzini | if (!job) {
|
2031 | 6e37fb81 | Paolo Bonzini | error_set(errp, QERR_BLOCK_JOB_NOT_ACTIVE, device); |
2032 | 6e37fb81 | Paolo Bonzini | return;
|
2033 | 6e37fb81 | Paolo Bonzini | } |
2034 | 6e37fb81 | Paolo Bonzini | |
2035 | 6e37fb81 | Paolo Bonzini | trace_qmp_block_job_resume(job); |
2036 | 6e37fb81 | Paolo Bonzini | block_job_resume(job); |
2037 | 6e37fb81 | Paolo Bonzini | } |
2038 | 6e37fb81 | Paolo Bonzini | |
2039 | aeae883b | Paolo Bonzini | void qmp_block_job_complete(const char *device, Error **errp) |
2040 | aeae883b | Paolo Bonzini | { |
2041 | aeae883b | Paolo Bonzini | BlockJob *job = find_block_job(device); |
2042 | aeae883b | Paolo Bonzini | |
2043 | aeae883b | Paolo Bonzini | if (!job) {
|
2044 | aeae883b | Paolo Bonzini | error_set(errp, QERR_BLOCK_JOB_NOT_ACTIVE, device); |
2045 | aeae883b | Paolo Bonzini | return;
|
2046 | aeae883b | Paolo Bonzini | } |
2047 | aeae883b | Paolo Bonzini | |
2048 | aeae883b | Paolo Bonzini | trace_qmp_block_job_complete(job); |
2049 | aeae883b | Paolo Bonzini | block_job_complete(job, errp); |
2050 | aeae883b | Paolo Bonzini | } |
2051 | aeae883b | Paolo Bonzini | |
2052 | fb5458cd | Stefan Hajnoczi | static void do_qmp_query_block_jobs_one(void *opaque, BlockDriverState *bs) |
2053 | fb5458cd | Stefan Hajnoczi | { |
2054 | fb5458cd | Stefan Hajnoczi | BlockJobInfoList **prev = opaque; |
2055 | fb5458cd | Stefan Hajnoczi | BlockJob *job = bs->job; |
2056 | fb5458cd | Stefan Hajnoczi | |
2057 | fb5458cd | Stefan Hajnoczi | if (job) {
|
2058 | 30e628b7 | Paolo Bonzini | BlockJobInfoList *elem = g_new0(BlockJobInfoList, 1);
|
2059 | 30e628b7 | Paolo Bonzini | elem->value = block_job_query(bs->job); |
2060 | fb5458cd | Stefan Hajnoczi | (*prev)->next = elem; |
2061 | fb5458cd | Stefan Hajnoczi | *prev = elem; |
2062 | fb5458cd | Stefan Hajnoczi | } |
2063 | fb5458cd | Stefan Hajnoczi | } |
2064 | fb5458cd | Stefan Hajnoczi | |
2065 | fb5458cd | Stefan Hajnoczi | BlockJobInfoList *qmp_query_block_jobs(Error **errp) |
2066 | fb5458cd | Stefan Hajnoczi | { |
2067 | fb5458cd | Stefan Hajnoczi | /* Dummy is a fake list element for holding the head pointer */
|
2068 | fb5458cd | Stefan Hajnoczi | BlockJobInfoList dummy = {}; |
2069 | fb5458cd | Stefan Hajnoczi | BlockJobInfoList *prev = &dummy; |
2070 | fb5458cd | Stefan Hajnoczi | bdrv_iterate(do_qmp_query_block_jobs_one, &prev); |
2071 | fb5458cd | Stefan Hajnoczi | return dummy.next;
|
2072 | fb5458cd | Stefan Hajnoczi | } |
2073 | 4d454574 | Paolo Bonzini | |
2074 | 0006383e | Kevin Wolf | QemuOptsList qemu_common_drive_opts = { |
2075 | 4d454574 | Paolo Bonzini | .name = "drive",
|
2076 | 0006383e | Kevin Wolf | .head = QTAILQ_HEAD_INITIALIZER(qemu_common_drive_opts.head), |
2077 | 4d454574 | Paolo Bonzini | .desc = { |
2078 | 4d454574 | Paolo Bonzini | { |
2079 | 4d454574 | Paolo Bonzini | .name = "bus",
|
2080 | 4d454574 | Paolo Bonzini | .type = QEMU_OPT_NUMBER, |
2081 | 4d454574 | Paolo Bonzini | .help = "bus number",
|
2082 | 4d454574 | Paolo Bonzini | },{ |
2083 | 4d454574 | Paolo Bonzini | .name = "unit",
|
2084 | 4d454574 | Paolo Bonzini | .type = QEMU_OPT_NUMBER, |
2085 | 4d454574 | Paolo Bonzini | .help = "unit number (i.e. lun for scsi)",
|
2086 | 4d454574 | Paolo Bonzini | },{ |
2087 | 4d454574 | Paolo Bonzini | .name = "if",
|
2088 | 4d454574 | Paolo Bonzini | .type = QEMU_OPT_STRING, |
2089 | 4d454574 | Paolo Bonzini | .help = "interface (ide, scsi, sd, mtd, floppy, pflash, virtio)",
|
2090 | 4d454574 | Paolo Bonzini | },{ |
2091 | 4d454574 | Paolo Bonzini | .name = "index",
|
2092 | 4d454574 | Paolo Bonzini | .type = QEMU_OPT_NUMBER, |
2093 | 4d454574 | Paolo Bonzini | .help = "index number",
|
2094 | 4d454574 | Paolo Bonzini | },{ |
2095 | 4d454574 | Paolo Bonzini | .name = "cyls",
|
2096 | 4d454574 | Paolo Bonzini | .type = QEMU_OPT_NUMBER, |
2097 | 4d454574 | Paolo Bonzini | .help = "number of cylinders (ide disk geometry)",
|
2098 | 4d454574 | Paolo Bonzini | },{ |
2099 | 4d454574 | Paolo Bonzini | .name = "heads",
|
2100 | 4d454574 | Paolo Bonzini | .type = QEMU_OPT_NUMBER, |
2101 | 4d454574 | Paolo Bonzini | .help = "number of heads (ide disk geometry)",
|
2102 | 4d454574 | Paolo Bonzini | },{ |
2103 | 4d454574 | Paolo Bonzini | .name = "secs",
|
2104 | 4d454574 | Paolo Bonzini | .type = QEMU_OPT_NUMBER, |
2105 | 4d454574 | Paolo Bonzini | .help = "number of sectors (ide disk geometry)",
|
2106 | 4d454574 | Paolo Bonzini | },{ |
2107 | 4d454574 | Paolo Bonzini | .name = "trans",
|
2108 | 4d454574 | Paolo Bonzini | .type = QEMU_OPT_STRING, |
2109 | 4d454574 | Paolo Bonzini | .help = "chs translation (auto, lba. none)",
|
2110 | 4d454574 | Paolo Bonzini | },{ |
2111 | 4d454574 | Paolo Bonzini | .name = "media",
|
2112 | 4d454574 | Paolo Bonzini | .type = QEMU_OPT_STRING, |
2113 | 4d454574 | Paolo Bonzini | .help = "media type (disk, cdrom)",
|
2114 | 4d454574 | Paolo Bonzini | },{ |
2115 | 4d454574 | Paolo Bonzini | .name = "snapshot",
|
2116 | 4d454574 | Paolo Bonzini | .type = QEMU_OPT_BOOL, |
2117 | 4d454574 | Paolo Bonzini | .help = "enable/disable snapshot mode",
|
2118 | 4d454574 | Paolo Bonzini | },{ |
2119 | 4d454574 | Paolo Bonzini | .name = "file",
|
2120 | 4d454574 | Paolo Bonzini | .type = QEMU_OPT_STRING, |
2121 | 4d454574 | Paolo Bonzini | .help = "disk image",
|
2122 | 4d454574 | Paolo Bonzini | },{ |
2123 | a9384aff | Paolo Bonzini | .name = "discard",
|
2124 | a9384aff | Paolo Bonzini | .type = QEMU_OPT_STRING, |
2125 | a9384aff | Paolo Bonzini | .help = "discard operation (ignore/off, unmap/on)",
|
2126 | a9384aff | Paolo Bonzini | },{ |
2127 | 29c4e2b5 | Kevin Wolf | .name = "cache.writeback",
|
2128 | 29c4e2b5 | Kevin Wolf | .type = QEMU_OPT_BOOL, |
2129 | 29c4e2b5 | Kevin Wolf | .help = "enables writeback mode for any caches",
|
2130 | 29c4e2b5 | Kevin Wolf | },{ |
2131 | 29c4e2b5 | Kevin Wolf | .name = "cache.direct",
|
2132 | 29c4e2b5 | Kevin Wolf | .type = QEMU_OPT_BOOL, |
2133 | 29c4e2b5 | Kevin Wolf | .help = "enables use of O_DIRECT (bypass the host page cache)",
|
2134 | 29c4e2b5 | Kevin Wolf | },{ |
2135 | 29c4e2b5 | Kevin Wolf | .name = "cache.no-flush",
|
2136 | 29c4e2b5 | Kevin Wolf | .type = QEMU_OPT_BOOL, |
2137 | 29c4e2b5 | Kevin Wolf | .help = "ignore any flush requests for the device",
|
2138 | 4d454574 | Paolo Bonzini | },{ |
2139 | 4d454574 | Paolo Bonzini | .name = "aio",
|
2140 | 4d454574 | Paolo Bonzini | .type = QEMU_OPT_STRING, |
2141 | 4d454574 | Paolo Bonzini | .help = "host AIO implementation (threads, native)",
|
2142 | 4d454574 | Paolo Bonzini | },{ |
2143 | 4d454574 | Paolo Bonzini | .name = "format",
|
2144 | 4d454574 | Paolo Bonzini | .type = QEMU_OPT_STRING, |
2145 | 4d454574 | Paolo Bonzini | .help = "disk format (raw, qcow2, ...)",
|
2146 | 4d454574 | Paolo Bonzini | },{ |
2147 | 4d454574 | Paolo Bonzini | .name = "serial",
|
2148 | 4d454574 | Paolo Bonzini | .type = QEMU_OPT_STRING, |
2149 | 4d454574 | Paolo Bonzini | .help = "disk serial number",
|
2150 | 4d454574 | Paolo Bonzini | },{ |
2151 | 4d454574 | Paolo Bonzini | .name = "rerror",
|
2152 | 4d454574 | Paolo Bonzini | .type = QEMU_OPT_STRING, |
2153 | 4d454574 | Paolo Bonzini | .help = "read error action",
|
2154 | 4d454574 | Paolo Bonzini | },{ |
2155 | 4d454574 | Paolo Bonzini | .name = "werror",
|
2156 | 4d454574 | Paolo Bonzini | .type = QEMU_OPT_STRING, |
2157 | 4d454574 | Paolo Bonzini | .help = "write error action",
|
2158 | 4d454574 | Paolo Bonzini | },{ |
2159 | 4d454574 | Paolo Bonzini | .name = "addr",
|
2160 | 4d454574 | Paolo Bonzini | .type = QEMU_OPT_STRING, |
2161 | 4d454574 | Paolo Bonzini | .help = "pci address (virtio only)",
|
2162 | 4d454574 | Paolo Bonzini | },{ |
2163 | 0f227a94 | Kevin Wolf | .name = "read-only",
|
2164 | 4d454574 | Paolo Bonzini | .type = QEMU_OPT_BOOL, |
2165 | 4d454574 | Paolo Bonzini | .help = "open drive file as read-only",
|
2166 | 4d454574 | Paolo Bonzini | },{ |
2167 | 57975222 | Kevin Wolf | .name = "throttling.iops-total",
|
2168 | 4d454574 | Paolo Bonzini | .type = QEMU_OPT_NUMBER, |
2169 | 4d454574 | Paolo Bonzini | .help = "limit total I/O operations per second",
|
2170 | 4d454574 | Paolo Bonzini | },{ |
2171 | 57975222 | Kevin Wolf | .name = "throttling.iops-read",
|
2172 | 4d454574 | Paolo Bonzini | .type = QEMU_OPT_NUMBER, |
2173 | 4d454574 | Paolo Bonzini | .help = "limit read operations per second",
|
2174 | 4d454574 | Paolo Bonzini | },{ |
2175 | 57975222 | Kevin Wolf | .name = "throttling.iops-write",
|
2176 | 4d454574 | Paolo Bonzini | .type = QEMU_OPT_NUMBER, |
2177 | 4d454574 | Paolo Bonzini | .help = "limit write operations per second",
|
2178 | 4d454574 | Paolo Bonzini | },{ |
2179 | 57975222 | Kevin Wolf | .name = "throttling.bps-total",
|
2180 | 4d454574 | Paolo Bonzini | .type = QEMU_OPT_NUMBER, |
2181 | 4d454574 | Paolo Bonzini | .help = "limit total bytes per second",
|
2182 | 4d454574 | Paolo Bonzini | },{ |
2183 | 57975222 | Kevin Wolf | .name = "throttling.bps-read",
|
2184 | 4d454574 | Paolo Bonzini | .type = QEMU_OPT_NUMBER, |
2185 | 4d454574 | Paolo Bonzini | .help = "limit read bytes per second",
|
2186 | 4d454574 | Paolo Bonzini | },{ |
2187 | 57975222 | Kevin Wolf | .name = "throttling.bps-write",
|
2188 | 4d454574 | Paolo Bonzini | .type = QEMU_OPT_NUMBER, |
2189 | 4d454574 | Paolo Bonzini | .help = "limit write bytes per second",
|
2190 | 4d454574 | Paolo Bonzini | },{ |
2191 | 3e9fab69 | Benoît Canet | .name = "throttling.iops-total-max",
|
2192 | 3e9fab69 | Benoît Canet | .type = QEMU_OPT_NUMBER, |
2193 | 3e9fab69 | Benoît Canet | .help = "I/O operations burst",
|
2194 | 3e9fab69 | Benoît Canet | },{ |
2195 | 3e9fab69 | Benoît Canet | .name = "throttling.iops-read-max",
|
2196 | 3e9fab69 | Benoît Canet | .type = QEMU_OPT_NUMBER, |
2197 | 3e9fab69 | Benoît Canet | .help = "I/O operations read burst",
|
2198 | 3e9fab69 | Benoît Canet | },{ |
2199 | 3e9fab69 | Benoît Canet | .name = "throttling.iops-write-max",
|
2200 | 3e9fab69 | Benoît Canet | .type = QEMU_OPT_NUMBER, |
2201 | 3e9fab69 | Benoît Canet | .help = "I/O operations write burst",
|
2202 | 3e9fab69 | Benoît Canet | },{ |
2203 | 3e9fab69 | Benoît Canet | .name = "throttling.bps-total-max",
|
2204 | 3e9fab69 | Benoît Canet | .type = QEMU_OPT_NUMBER, |
2205 | 3e9fab69 | Benoît Canet | .help = "total bytes burst",
|
2206 | 3e9fab69 | Benoît Canet | },{ |
2207 | 3e9fab69 | Benoît Canet | .name = "throttling.bps-read-max",
|
2208 | 3e9fab69 | Benoît Canet | .type = QEMU_OPT_NUMBER, |
2209 | 3e9fab69 | Benoît Canet | .help = "total bytes read burst",
|
2210 | 3e9fab69 | Benoît Canet | },{ |
2211 | 3e9fab69 | Benoît Canet | .name = "throttling.bps-write-max",
|
2212 | 3e9fab69 | Benoît Canet | .type = QEMU_OPT_NUMBER, |
2213 | 3e9fab69 | Benoît Canet | .help = "total bytes write burst",
|
2214 | 3e9fab69 | Benoît Canet | },{ |
2215 | 2024c1df | Benoît Canet | .name = "throttling.iops-size",
|
2216 | 2024c1df | Benoît Canet | .type = QEMU_OPT_NUMBER, |
2217 | 2024c1df | Benoît Canet | .help = "when limiting by iops max size of an I/O in bytes",
|
2218 | 2024c1df | Benoît Canet | },{ |
2219 | 4d454574 | Paolo Bonzini | .name = "copy-on-read",
|
2220 | 4d454574 | Paolo Bonzini | .type = QEMU_OPT_BOOL, |
2221 | 4d454574 | Paolo Bonzini | .help = "copy read data from backing file into image file",
|
2222 | 4d454574 | Paolo Bonzini | },{ |
2223 | 4d454574 | Paolo Bonzini | .name = "boot",
|
2224 | 4d454574 | Paolo Bonzini | .type = QEMU_OPT_BOOL, |
2225 | 4d454574 | Paolo Bonzini | .help = "(deprecated, ignored)",
|
2226 | 4d454574 | Paolo Bonzini | }, |
2227 | 4d454574 | Paolo Bonzini | { /* end of list */ }
|
2228 | 4d454574 | Paolo Bonzini | }, |
2229 | 4d454574 | Paolo Bonzini | }; |
2230 | 0006383e | Kevin Wolf | |
2231 | 0006383e | Kevin Wolf | QemuOptsList qemu_drive_opts = { |
2232 | 0006383e | Kevin Wolf | .name = "drive",
|
2233 | 0006383e | Kevin Wolf | .head = QTAILQ_HEAD_INITIALIZER(qemu_drive_opts.head), |
2234 | 0006383e | Kevin Wolf | .desc = { |
2235 | 492fdc6f | Kevin Wolf | /*
|
2236 | 492fdc6f | Kevin Wolf | * no elements => accept any params
|
2237 | 492fdc6f | Kevin Wolf | * validation will happen later
|
2238 | 492fdc6f | Kevin Wolf | */
|
2239 | 0006383e | Kevin Wolf | { /* end of list */ }
|
2240 | 0006383e | Kevin Wolf | }, |
2241 | 0006383e | Kevin Wolf | }; |