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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 | 8afaefb8 | Kevin Wolf | extern QemuOptsList qemu_old_drive_opts;
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50 | 666daa68 | Markus Armbruster | |
51 | 1960966d | Markus Armbruster | static const char *const if_name[IF_COUNT] = { |
52 | 1960966d | Markus Armbruster | [IF_NONE] = "none",
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53 | 1960966d | Markus Armbruster | [IF_IDE] = "ide",
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54 | 1960966d | Markus Armbruster | [IF_SCSI] = "scsi",
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55 | 1960966d | Markus Armbruster | [IF_FLOPPY] = "floppy",
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56 | 1960966d | Markus Armbruster | [IF_PFLASH] = "pflash",
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57 | 1960966d | Markus Armbruster | [IF_MTD] = "mtd",
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58 | 1960966d | Markus Armbruster | [IF_SD] = "sd",
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59 | 1960966d | Markus Armbruster | [IF_VIRTIO] = "virtio",
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60 | 1960966d | Markus Armbruster | [IF_XEN] = "xen",
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61 | 1960966d | Markus Armbruster | }; |
62 | 1960966d | Markus Armbruster | |
63 | 1960966d | Markus Armbruster | static const int if_max_devs[IF_COUNT] = { |
64 | 27d6bf40 | Markus Armbruster | /*
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65 | 27d6bf40 | Markus Armbruster | * Do not change these numbers! They govern how drive option
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66 | 27d6bf40 | Markus Armbruster | * index maps to unit and bus. That mapping is ABI.
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67 | 27d6bf40 | Markus Armbruster | *
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68 | 27d6bf40 | Markus Armbruster | * All controllers used to imlement if=T drives need to support
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69 | 27d6bf40 | Markus Armbruster | * if_max_devs[T] units, for any T with if_max_devs[T] != 0.
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70 | 27d6bf40 | Markus Armbruster | * Otherwise, some index values map to "impossible" bus, unit
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71 | 27d6bf40 | Markus Armbruster | * values.
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72 | 27d6bf40 | Markus Armbruster | *
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73 | 27d6bf40 | Markus Armbruster | * For instance, if you change [IF_SCSI] to 255, -drive
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74 | 27d6bf40 | Markus Armbruster | * if=scsi,index=12 no longer means bus=1,unit=5, but
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75 | 27d6bf40 | Markus Armbruster | * bus=0,unit=12. With an lsi53c895a controller (7 units max),
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76 | 27d6bf40 | Markus Armbruster | * the drive can't be set up. Regression.
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77 | 27d6bf40 | Markus Armbruster | */
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78 | 27d6bf40 | Markus Armbruster | [IF_IDE] = 2,
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79 | 27d6bf40 | Markus Armbruster | [IF_SCSI] = 7,
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80 | 1960966d | Markus Armbruster | }; |
81 | 1960966d | Markus Armbruster | |
82 | 14bafc54 | Markus Armbruster | /*
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83 | 14bafc54 | Markus Armbruster | * We automatically delete the drive when a device using it gets
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84 | 14bafc54 | Markus Armbruster | * unplugged. Questionable feature, but we can't just drop it.
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85 | 14bafc54 | Markus Armbruster | * Device models call blockdev_mark_auto_del() to schedule the
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86 | 14bafc54 | Markus Armbruster | * automatic deletion, and generic qdev code calls blockdev_auto_del()
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87 | 14bafc54 | Markus Armbruster | * when deletion is actually safe.
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88 | 14bafc54 | Markus Armbruster | */
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89 | 14bafc54 | Markus Armbruster | void blockdev_mark_auto_del(BlockDriverState *bs)
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90 | 14bafc54 | Markus Armbruster | { |
91 | 14bafc54 | Markus Armbruster | DriveInfo *dinfo = drive_get_by_blockdev(bs); |
92 | 14bafc54 | Markus Armbruster | |
93 | 12bde0ee | Paolo Bonzini | if (bs->job) {
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94 | 12bde0ee | Paolo Bonzini | block_job_cancel(bs->job); |
95 | 12bde0ee | Paolo Bonzini | } |
96 | 0fc0f1fa | Ryan Harper | if (dinfo) {
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97 | 0fc0f1fa | Ryan Harper | dinfo->auto_del = 1;
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98 | 0fc0f1fa | Ryan Harper | } |
99 | 14bafc54 | Markus Armbruster | } |
100 | 14bafc54 | Markus Armbruster | |
101 | 14bafc54 | Markus Armbruster | void blockdev_auto_del(BlockDriverState *bs)
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102 | 14bafc54 | Markus Armbruster | { |
103 | 14bafc54 | Markus Armbruster | DriveInfo *dinfo = drive_get_by_blockdev(bs); |
104 | 14bafc54 | Markus Armbruster | |
105 | 0fc0f1fa | Ryan Harper | if (dinfo && dinfo->auto_del) {
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106 | 84fb3925 | Marcelo Tosatti | drive_put_ref(dinfo); |
107 | 14bafc54 | Markus Armbruster | } |
108 | 14bafc54 | Markus Armbruster | } |
109 | 14bafc54 | Markus Armbruster | |
110 | 505a7fb1 | Markus Armbruster | static int drive_index_to_bus_id(BlockInterfaceType type, int index) |
111 | 505a7fb1 | Markus Armbruster | { |
112 | 505a7fb1 | Markus Armbruster | int max_devs = if_max_devs[type];
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113 | 505a7fb1 | Markus Armbruster | return max_devs ? index / max_devs : 0; |
114 | 505a7fb1 | Markus Armbruster | } |
115 | 505a7fb1 | Markus Armbruster | |
116 | 505a7fb1 | Markus Armbruster | static int drive_index_to_unit_id(BlockInterfaceType type, int index) |
117 | 505a7fb1 | Markus Armbruster | { |
118 | 505a7fb1 | Markus Armbruster | int max_devs = if_max_devs[type];
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119 | 505a7fb1 | Markus Armbruster | return max_devs ? index % max_devs : index;
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120 | 505a7fb1 | Markus Armbruster | } |
121 | 505a7fb1 | Markus Armbruster | |
122 | 2292ddae | Markus Armbruster | QemuOpts *drive_def(const char *optstr) |
123 | 2292ddae | Markus Armbruster | { |
124 | 2292ddae | Markus Armbruster | return qemu_opts_parse(qemu_find_opts("drive"), optstr, 0); |
125 | 2292ddae | Markus Armbruster | } |
126 | 2292ddae | Markus Armbruster | |
127 | 2292ddae | Markus Armbruster | QemuOpts *drive_add(BlockInterfaceType type, int index, const char *file, |
128 | 5645b0f4 | Markus Armbruster | const char *optstr) |
129 | 666daa68 | Markus Armbruster | { |
130 | 666daa68 | Markus Armbruster | QemuOpts *opts; |
131 | 2292ddae | Markus Armbruster | char buf[32]; |
132 | 666daa68 | Markus Armbruster | |
133 | 2292ddae | Markus Armbruster | opts = drive_def(optstr); |
134 | 666daa68 | Markus Armbruster | if (!opts) {
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135 | 666daa68 | Markus Armbruster | return NULL; |
136 | 666daa68 | Markus Armbruster | } |
137 | 2292ddae | Markus Armbruster | if (type != IF_DEFAULT) {
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138 | 2292ddae | Markus Armbruster | qemu_opt_set(opts, "if", if_name[type]);
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139 | 2292ddae | Markus Armbruster | } |
140 | 2292ddae | Markus Armbruster | if (index >= 0) { |
141 | 2292ddae | Markus Armbruster | snprintf(buf, sizeof(buf), "%d", index); |
142 | 2292ddae | Markus Armbruster | qemu_opt_set(opts, "index", buf);
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143 | 2292ddae | Markus Armbruster | } |
144 | 666daa68 | Markus Armbruster | if (file)
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145 | 666daa68 | Markus Armbruster | qemu_opt_set(opts, "file", file);
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146 | 666daa68 | Markus Armbruster | return opts;
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147 | 666daa68 | Markus Armbruster | } |
148 | 666daa68 | Markus Armbruster | |
149 | 666daa68 | Markus Armbruster | DriveInfo *drive_get(BlockInterfaceType type, int bus, int unit) |
150 | 666daa68 | Markus Armbruster | { |
151 | 666daa68 | Markus Armbruster | DriveInfo *dinfo; |
152 | 666daa68 | Markus Armbruster | |
153 | 666daa68 | Markus Armbruster | /* seek interface, bus and unit */
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154 | 666daa68 | Markus Armbruster | |
155 | 666daa68 | Markus Armbruster | QTAILQ_FOREACH(dinfo, &drives, next) { |
156 | 666daa68 | Markus Armbruster | if (dinfo->type == type &&
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157 | 666daa68 | Markus Armbruster | dinfo->bus == bus && |
158 | 666daa68 | Markus Armbruster | dinfo->unit == unit) |
159 | 666daa68 | Markus Armbruster | return dinfo;
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160 | 666daa68 | Markus Armbruster | } |
161 | 666daa68 | Markus Armbruster | |
162 | 666daa68 | Markus Armbruster | return NULL; |
163 | 666daa68 | Markus Armbruster | } |
164 | 666daa68 | Markus Armbruster | |
165 | f1bd51ac | Markus Armbruster | DriveInfo *drive_get_by_index(BlockInterfaceType type, int index)
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166 | f1bd51ac | Markus Armbruster | { |
167 | f1bd51ac | Markus Armbruster | return drive_get(type,
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168 | f1bd51ac | Markus Armbruster | drive_index_to_bus_id(type, index), |
169 | f1bd51ac | Markus Armbruster | drive_index_to_unit_id(type, index)); |
170 | f1bd51ac | Markus Armbruster | } |
171 | f1bd51ac | Markus Armbruster | |
172 | 666daa68 | Markus Armbruster | int drive_get_max_bus(BlockInterfaceType type)
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173 | 666daa68 | Markus Armbruster | { |
174 | 666daa68 | Markus Armbruster | int max_bus;
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175 | 666daa68 | Markus Armbruster | DriveInfo *dinfo; |
176 | 666daa68 | Markus Armbruster | |
177 | 666daa68 | Markus Armbruster | max_bus = -1;
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178 | 666daa68 | Markus Armbruster | QTAILQ_FOREACH(dinfo, &drives, next) { |
179 | 666daa68 | Markus Armbruster | if(dinfo->type == type &&
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180 | 666daa68 | Markus Armbruster | dinfo->bus > max_bus) |
181 | 666daa68 | Markus Armbruster | max_bus = dinfo->bus; |
182 | 666daa68 | Markus Armbruster | } |
183 | 666daa68 | Markus Armbruster | return max_bus;
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184 | 666daa68 | Markus Armbruster | } |
185 | 666daa68 | Markus Armbruster | |
186 | 13839974 | Markus Armbruster | /* Get a block device. This should only be used for single-drive devices
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187 | 13839974 | Markus Armbruster | (e.g. SD/Floppy/MTD). Multi-disk devices (scsi/ide) should use the
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188 | 13839974 | Markus Armbruster | appropriate bus. */
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189 | 13839974 | Markus Armbruster | DriveInfo *drive_get_next(BlockInterfaceType type) |
190 | 13839974 | Markus Armbruster | { |
191 | 13839974 | Markus Armbruster | static int next_block_unit[IF_COUNT]; |
192 | 13839974 | Markus Armbruster | |
193 | 13839974 | Markus Armbruster | return drive_get(type, 0, next_block_unit[type]++); |
194 | 13839974 | Markus Armbruster | } |
195 | 13839974 | Markus Armbruster | |
196 | e4700e59 | Markus Armbruster | DriveInfo *drive_get_by_blockdev(BlockDriverState *bs) |
197 | 666daa68 | Markus Armbruster | { |
198 | 666daa68 | Markus Armbruster | DriveInfo *dinfo; |
199 | 666daa68 | Markus Armbruster | |
200 | 666daa68 | Markus Armbruster | QTAILQ_FOREACH(dinfo, &drives, next) { |
201 | e4700e59 | Markus Armbruster | if (dinfo->bdrv == bs) {
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202 | e4700e59 | Markus Armbruster | return dinfo;
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203 | e4700e59 | Markus Armbruster | } |
204 | 666daa68 | Markus Armbruster | } |
205 | e4700e59 | Markus Armbruster | return NULL; |
206 | 666daa68 | Markus Armbruster | } |
207 | 666daa68 | Markus Armbruster | |
208 | 666daa68 | Markus Armbruster | static void bdrv_format_print(void *opaque, const char *name) |
209 | 666daa68 | Markus Armbruster | { |
210 | 807105a7 | Markus Armbruster | error_printf(" %s", name);
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211 | 666daa68 | Markus Armbruster | } |
212 | 666daa68 | Markus Armbruster | |
213 | 84fb3925 | Marcelo Tosatti | static void drive_uninit(DriveInfo *dinfo) |
214 | 666daa68 | Markus Armbruster | { |
215 | 666daa68 | Markus Armbruster | qemu_opts_del(dinfo->opts); |
216 | 666daa68 | Markus Armbruster | bdrv_delete(dinfo->bdrv); |
217 | 7267c094 | Anthony Liguori | g_free(dinfo->id); |
218 | 666daa68 | Markus Armbruster | QTAILQ_REMOVE(&drives, dinfo, next); |
219 | bb44619b | Kevin Wolf | g_free(dinfo->serial); |
220 | 7267c094 | Anthony Liguori | g_free(dinfo); |
221 | 666daa68 | Markus Armbruster | } |
222 | 666daa68 | Markus Armbruster | |
223 | 84fb3925 | Marcelo Tosatti | void drive_put_ref(DriveInfo *dinfo)
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224 | 84fb3925 | Marcelo Tosatti | { |
225 | 84fb3925 | Marcelo Tosatti | assert(dinfo->refcount); |
226 | 84fb3925 | Marcelo Tosatti | if (--dinfo->refcount == 0) { |
227 | 84fb3925 | Marcelo Tosatti | drive_uninit(dinfo); |
228 | 84fb3925 | Marcelo Tosatti | } |
229 | 84fb3925 | Marcelo Tosatti | } |
230 | 84fb3925 | Marcelo Tosatti | |
231 | 84fb3925 | Marcelo Tosatti | void drive_get_ref(DriveInfo *dinfo)
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232 | 84fb3925 | Marcelo Tosatti | { |
233 | 84fb3925 | Marcelo Tosatti | dinfo->refcount++; |
234 | 84fb3925 | Marcelo Tosatti | } |
235 | 84fb3925 | Marcelo Tosatti | |
236 | aa398a5c | Stefan Hajnoczi | typedef struct { |
237 | aa398a5c | Stefan Hajnoczi | QEMUBH *bh; |
238 | aa398a5c | Stefan Hajnoczi | DriveInfo *dinfo; |
239 | aa398a5c | Stefan Hajnoczi | } DrivePutRefBH; |
240 | aa398a5c | Stefan Hajnoczi | |
241 | aa398a5c | Stefan Hajnoczi | static void drive_put_ref_bh(void *opaque) |
242 | aa398a5c | Stefan Hajnoczi | { |
243 | aa398a5c | Stefan Hajnoczi | DrivePutRefBH *s = opaque; |
244 | aa398a5c | Stefan Hajnoczi | |
245 | aa398a5c | Stefan Hajnoczi | drive_put_ref(s->dinfo); |
246 | aa398a5c | Stefan Hajnoczi | qemu_bh_delete(s->bh); |
247 | aa398a5c | Stefan Hajnoczi | g_free(s); |
248 | aa398a5c | Stefan Hajnoczi | } |
249 | aa398a5c | Stefan Hajnoczi | |
250 | aa398a5c | Stefan Hajnoczi | /*
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251 | aa398a5c | Stefan Hajnoczi | * Release a drive reference in a BH
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252 | aa398a5c | Stefan Hajnoczi | *
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253 | aa398a5c | Stefan Hajnoczi | * It is not possible to use drive_put_ref() from a callback function when the
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254 | aa398a5c | Stefan Hajnoczi | * callers still need the drive. In such cases we schedule a BH to release the
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255 | aa398a5c | Stefan Hajnoczi | * reference.
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256 | aa398a5c | Stefan Hajnoczi | */
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257 | aa398a5c | Stefan Hajnoczi | static void drive_put_ref_bh_schedule(DriveInfo *dinfo) |
258 | aa398a5c | Stefan Hajnoczi | { |
259 | aa398a5c | Stefan Hajnoczi | DrivePutRefBH *s; |
260 | aa398a5c | Stefan Hajnoczi | |
261 | aa398a5c | Stefan Hajnoczi | s = g_new(DrivePutRefBH, 1);
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262 | aa398a5c | Stefan Hajnoczi | s->bh = qemu_bh_new(drive_put_ref_bh, s); |
263 | aa398a5c | Stefan Hajnoczi | s->dinfo = dinfo; |
264 | aa398a5c | Stefan Hajnoczi | qemu_bh_schedule(s->bh); |
265 | aa398a5c | Stefan Hajnoczi | } |
266 | aa398a5c | Stefan Hajnoczi | |
267 | 1ceee0d5 | Paolo Bonzini | static int parse_block_error_action(const char *buf, bool is_read) |
268 | 666daa68 | Markus Armbruster | { |
269 | 666daa68 | Markus Armbruster | if (!strcmp(buf, "ignore")) { |
270 | 92aa5c6d | Paolo Bonzini | return BLOCKDEV_ON_ERROR_IGNORE;
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271 | 666daa68 | Markus Armbruster | } else if (!is_read && !strcmp(buf, "enospc")) { |
272 | 92aa5c6d | Paolo Bonzini | return BLOCKDEV_ON_ERROR_ENOSPC;
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273 | 666daa68 | Markus Armbruster | } else if (!strcmp(buf, "stop")) { |
274 | 92aa5c6d | Paolo Bonzini | return BLOCKDEV_ON_ERROR_STOP;
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275 | 666daa68 | Markus Armbruster | } else if (!strcmp(buf, "report")) { |
276 | 92aa5c6d | Paolo Bonzini | return BLOCKDEV_ON_ERROR_REPORT;
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277 | 666daa68 | Markus Armbruster | } else {
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278 | 807105a7 | Markus Armbruster | error_report("'%s' invalid %s error action",
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279 | 807105a7 | Markus Armbruster | buf, is_read ? "read" : "write"); |
280 | 666daa68 | Markus Armbruster | return -1; |
281 | 666daa68 | Markus Armbruster | } |
282 | 666daa68 | Markus Armbruster | } |
283 | 666daa68 | Markus Armbruster | |
284 | c546194f | Stefan Hajnoczi | static bool do_check_io_limits(BlockIOLimit *io_limits, Error **errp) |
285 | 0563e191 | Zhi Yong Wu | { |
286 | 0563e191 | Zhi Yong Wu | bool bps_flag;
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287 | 0563e191 | Zhi Yong Wu | bool iops_flag;
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288 | 0563e191 | Zhi Yong Wu | |
289 | 0563e191 | Zhi Yong Wu | assert(io_limits); |
290 | 0563e191 | Zhi Yong Wu | |
291 | 0563e191 | Zhi Yong Wu | bps_flag = (io_limits->bps[BLOCK_IO_LIMIT_TOTAL] != 0)
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292 | 0563e191 | Zhi Yong Wu | && ((io_limits->bps[BLOCK_IO_LIMIT_READ] != 0)
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293 | 0563e191 | Zhi Yong Wu | || (io_limits->bps[BLOCK_IO_LIMIT_WRITE] != 0));
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294 | 0563e191 | Zhi Yong Wu | iops_flag = (io_limits->iops[BLOCK_IO_LIMIT_TOTAL] != 0)
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295 | 0563e191 | Zhi Yong Wu | && ((io_limits->iops[BLOCK_IO_LIMIT_READ] != 0)
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296 | 0563e191 | Zhi Yong Wu | || (io_limits->iops[BLOCK_IO_LIMIT_WRITE] != 0));
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297 | 0563e191 | Zhi Yong Wu | if (bps_flag || iops_flag) {
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298 | c546194f | Stefan Hajnoczi | error_setg(errp, "bps(iops) and bps_rd/bps_wr(iops_rd/iops_wr) "
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299 | c546194f | Stefan Hajnoczi | "cannot be used at the same time");
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300 | 0563e191 | Zhi Yong Wu | return false; |
301 | 0563e191 | Zhi Yong Wu | } |
302 | 0563e191 | Zhi Yong Wu | |
303 | 7d81c141 | Stefan Hajnoczi | if (io_limits->bps[BLOCK_IO_LIMIT_TOTAL] < 0 || |
304 | 7d81c141 | Stefan Hajnoczi | io_limits->bps[BLOCK_IO_LIMIT_WRITE] < 0 ||
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305 | 7d81c141 | Stefan Hajnoczi | io_limits->bps[BLOCK_IO_LIMIT_READ] < 0 ||
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306 | 7d81c141 | Stefan Hajnoczi | io_limits->iops[BLOCK_IO_LIMIT_TOTAL] < 0 ||
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307 | 7d81c141 | Stefan Hajnoczi | io_limits->iops[BLOCK_IO_LIMIT_WRITE] < 0 ||
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308 | 7d81c141 | Stefan Hajnoczi | io_limits->iops[BLOCK_IO_LIMIT_READ] < 0) {
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309 | 7d81c141 | Stefan Hajnoczi | error_setg(errp, "bps and iops values must be 0 or greater");
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310 | 7d81c141 | Stefan Hajnoczi | return false; |
311 | 7d81c141 | Stefan Hajnoczi | } |
312 | 7d81c141 | Stefan Hajnoczi | |
313 | 0563e191 | Zhi Yong Wu | return true; |
314 | 0563e191 | Zhi Yong Wu | } |
315 | 0563e191 | Zhi Yong Wu | |
316 | 57975222 | Kevin Wolf | static DriveInfo *blockdev_init(QemuOpts *all_opts,
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317 | 57975222 | Kevin Wolf | BlockInterfaceType block_default_type) |
318 | 666daa68 | Markus Armbruster | { |
319 | 666daa68 | Markus Armbruster | const char *buf; |
320 | 666daa68 | Markus Armbruster | const char *file = NULL; |
321 | 666daa68 | Markus Armbruster | const char *serial; |
322 | 666daa68 | Markus Armbruster | const char *mediastr = ""; |
323 | 666daa68 | Markus Armbruster | BlockInterfaceType type; |
324 | 666daa68 | Markus Armbruster | enum { MEDIA_DISK, MEDIA_CDROM } media;
|
325 | 666daa68 | Markus Armbruster | int bus_id, unit_id;
|
326 | 666daa68 | Markus Armbruster | int cyls, heads, secs, translation;
|
327 | 666daa68 | Markus Armbruster | int max_devs;
|
328 | 666daa68 | Markus Armbruster | int index;
|
329 | 666daa68 | Markus Armbruster | int ro = 0; |
330 | 666daa68 | Markus Armbruster | int bdrv_flags = 0; |
331 | 666daa68 | Markus Armbruster | int on_read_error, on_write_error;
|
332 | 666daa68 | Markus Armbruster | const char *devaddr; |
333 | 666daa68 | Markus Armbruster | DriveInfo *dinfo; |
334 | 0563e191 | Zhi Yong Wu | BlockIOLimit io_limits; |
335 | 666daa68 | Markus Armbruster | int snapshot = 0; |
336 | fb0490f6 | Stefan Hajnoczi | bool copy_on_read;
|
337 | 666daa68 | Markus Armbruster | int ret;
|
338 | c546194f | Stefan Hajnoczi | Error *error = NULL;
|
339 | 0006383e | Kevin Wolf | QemuOpts *opts; |
340 | 0006383e | Kevin Wolf | QDict *bs_opts; |
341 | 0006383e | Kevin Wolf | const char *id; |
342 | 74fe54f2 | Kevin Wolf | bool has_driver_specific_opts;
|
343 | 6db5f5d6 | Mike Qiu | BlockDriver *drv = NULL;
|
344 | 666daa68 | Markus Armbruster | |
345 | 666daa68 | Markus Armbruster | translation = BIOS_ATA_TRANSLATION_AUTO; |
346 | 666daa68 | Markus Armbruster | media = MEDIA_DISK; |
347 | 666daa68 | Markus Armbruster | |
348 | 0006383e | Kevin Wolf | /* Check common options by copying from all_opts to opts, all other options
|
349 | 0006383e | Kevin Wolf | * are stored in bs_opts. */
|
350 | 0006383e | Kevin Wolf | id = qemu_opts_id(all_opts); |
351 | 0006383e | Kevin Wolf | opts = qemu_opts_create(&qemu_common_drive_opts, id, 1, &error);
|
352 | 0006383e | Kevin Wolf | if (error_is_set(&error)) {
|
353 | 0006383e | Kevin Wolf | qerror_report_err(error); |
354 | 0006383e | Kevin Wolf | error_free(error); |
355 | 0006383e | Kevin Wolf | return NULL; |
356 | 0006383e | Kevin Wolf | } |
357 | 0006383e | Kevin Wolf | |
358 | 0006383e | Kevin Wolf | bs_opts = qdict_new(); |
359 | 0006383e | Kevin Wolf | qemu_opts_to_qdict(all_opts, bs_opts); |
360 | 0006383e | Kevin Wolf | qemu_opts_absorb_qdict(opts, bs_opts, &error); |
361 | 0006383e | Kevin Wolf | if (error_is_set(&error)) {
|
362 | 0006383e | Kevin Wolf | qerror_report_err(error); |
363 | 0006383e | Kevin Wolf | error_free(error); |
364 | 0006383e | Kevin Wolf | return NULL; |
365 | 0006383e | Kevin Wolf | } |
366 | 0006383e | Kevin Wolf | |
367 | 0006383e | Kevin Wolf | if (id) {
|
368 | 0006383e | Kevin Wolf | qdict_del(bs_opts, "id");
|
369 | 0006383e | Kevin Wolf | } |
370 | 0006383e | Kevin Wolf | |
371 | 74fe54f2 | Kevin Wolf | has_driver_specific_opts = !!qdict_size(bs_opts); |
372 | 74fe54f2 | Kevin Wolf | |
373 | 666daa68 | Markus Armbruster | /* extract parameters */
|
374 | 666daa68 | Markus Armbruster | bus_id = qemu_opt_get_number(opts, "bus", 0); |
375 | 666daa68 | Markus Armbruster | unit_id = qemu_opt_get_number(opts, "unit", -1); |
376 | 666daa68 | Markus Armbruster | index = qemu_opt_get_number(opts, "index", -1); |
377 | 666daa68 | Markus Armbruster | |
378 | 666daa68 | Markus Armbruster | cyls = qemu_opt_get_number(opts, "cyls", 0); |
379 | 666daa68 | Markus Armbruster | heads = qemu_opt_get_number(opts, "heads", 0); |
380 | 666daa68 | Markus Armbruster | secs = qemu_opt_get_number(opts, "secs", 0); |
381 | 666daa68 | Markus Armbruster | |
382 | 666daa68 | Markus Armbruster | snapshot = qemu_opt_get_bool(opts, "snapshot", 0); |
383 | 0f227a94 | Kevin Wolf | ro = qemu_opt_get_bool(opts, "read-only", 0); |
384 | fb0490f6 | Stefan Hajnoczi | copy_on_read = qemu_opt_get_bool(opts, "copy-on-read", false); |
385 | 666daa68 | Markus Armbruster | |
386 | 666daa68 | Markus Armbruster | file = qemu_opt_get(opts, "file");
|
387 | 666daa68 | Markus Armbruster | serial = qemu_opt_get(opts, "serial");
|
388 | 666daa68 | Markus Armbruster | |
389 | 666daa68 | Markus Armbruster | if ((buf = qemu_opt_get(opts, "if")) != NULL) { |
390 | 1960966d | Markus Armbruster | for (type = 0; type < IF_COUNT && strcmp(buf, if_name[type]); type++) |
391 | 1960966d | Markus Armbruster | ; |
392 | 1960966d | Markus Armbruster | if (type == IF_COUNT) {
|
393 | 807105a7 | Markus Armbruster | error_report("unsupported bus type '%s'", buf);
|
394 | 666daa68 | Markus Armbruster | return NULL; |
395 | 666daa68 | Markus Armbruster | } |
396 | 2d3999fe | Luiz Capitulino | } else {
|
397 | 2d0d2837 | Christian Borntraeger | type = block_default_type; |
398 | 666daa68 | Markus Armbruster | } |
399 | 2d3999fe | Luiz Capitulino | |
400 | 1960966d | Markus Armbruster | max_devs = if_max_devs[type]; |
401 | 666daa68 | Markus Armbruster | |
402 | 666daa68 | Markus Armbruster | if (cyls || heads || secs) {
|
403 | aaea3f36 | Markus Armbruster | if (cyls < 1) { |
404 | 807105a7 | Markus Armbruster | error_report("invalid physical cyls number");
|
405 | 666daa68 | Markus Armbruster | return NULL; |
406 | 666daa68 | Markus Armbruster | } |
407 | aaea3f36 | Markus Armbruster | if (heads < 1) { |
408 | 807105a7 | Markus Armbruster | error_report("invalid physical heads number");
|
409 | 666daa68 | Markus Armbruster | return NULL; |
410 | 666daa68 | Markus Armbruster | } |
411 | aaea3f36 | Markus Armbruster | if (secs < 1) { |
412 | 807105a7 | Markus Armbruster | error_report("invalid physical secs number");
|
413 | 666daa68 | Markus Armbruster | return NULL; |
414 | 666daa68 | Markus Armbruster | } |
415 | 666daa68 | Markus Armbruster | } |
416 | 666daa68 | Markus Armbruster | |
417 | 666daa68 | Markus Armbruster | if ((buf = qemu_opt_get(opts, "trans")) != NULL) { |
418 | 666daa68 | Markus Armbruster | if (!cyls) {
|
419 | e4080f9b | Markus Armbruster | error_report("'%s' trans must be used with cyls, heads and secs",
|
420 | 807105a7 | Markus Armbruster | buf); |
421 | 666daa68 | Markus Armbruster | return NULL; |
422 | 666daa68 | Markus Armbruster | } |
423 | 666daa68 | Markus Armbruster | if (!strcmp(buf, "none")) |
424 | 666daa68 | Markus Armbruster | translation = BIOS_ATA_TRANSLATION_NONE; |
425 | 666daa68 | Markus Armbruster | else if (!strcmp(buf, "lba")) |
426 | 666daa68 | Markus Armbruster | translation = BIOS_ATA_TRANSLATION_LBA; |
427 | 666daa68 | Markus Armbruster | else if (!strcmp(buf, "auto")) |
428 | 666daa68 | Markus Armbruster | translation = BIOS_ATA_TRANSLATION_AUTO; |
429 | 666daa68 | Markus Armbruster | else {
|
430 | 807105a7 | Markus Armbruster | error_report("'%s' invalid translation type", buf);
|
431 | 666daa68 | Markus Armbruster | return NULL; |
432 | 666daa68 | Markus Armbruster | } |
433 | 666daa68 | Markus Armbruster | } |
434 | 666daa68 | Markus Armbruster | |
435 | 666daa68 | Markus Armbruster | if ((buf = qemu_opt_get(opts, "media")) != NULL) { |
436 | 666daa68 | Markus Armbruster | if (!strcmp(buf, "disk")) { |
437 | 666daa68 | Markus Armbruster | media = MEDIA_DISK; |
438 | 666daa68 | Markus Armbruster | } else if (!strcmp(buf, "cdrom")) { |
439 | 666daa68 | Markus Armbruster | if (cyls || secs || heads) {
|
440 | e7ff8f0e | Luiz Capitulino | error_report("CHS can't be set with media=%s", buf);
|
441 | 666daa68 | Markus Armbruster | return NULL; |
442 | 666daa68 | Markus Armbruster | } |
443 | 666daa68 | Markus Armbruster | media = MEDIA_CDROM; |
444 | 666daa68 | Markus Armbruster | } else {
|
445 | 807105a7 | Markus Armbruster | error_report("'%s' invalid media", buf);
|
446 | 666daa68 | Markus Armbruster | return NULL; |
447 | 666daa68 | Markus Armbruster | } |
448 | 666daa68 | Markus Armbruster | } |
449 | 666daa68 | Markus Armbruster | |
450 | a9384aff | Paolo Bonzini | if ((buf = qemu_opt_get(opts, "discard")) != NULL) { |
451 | a9384aff | Paolo Bonzini | if (bdrv_parse_discard_flags(buf, &bdrv_flags) != 0) { |
452 | a9384aff | Paolo Bonzini | error_report("invalid discard option");
|
453 | a9384aff | Paolo Bonzini | return NULL; |
454 | a9384aff | Paolo Bonzini | } |
455 | a9384aff | Paolo Bonzini | } |
456 | a9384aff | Paolo Bonzini | |
457 | 29c4e2b5 | Kevin Wolf | if (qemu_opt_get_bool(opts, "cache.writeback", true)) { |
458 | 29c4e2b5 | Kevin Wolf | bdrv_flags |= BDRV_O_CACHE_WB; |
459 | 29c4e2b5 | Kevin Wolf | } |
460 | 29c4e2b5 | Kevin Wolf | if (qemu_opt_get_bool(opts, "cache.direct", false)) { |
461 | 29c4e2b5 | Kevin Wolf | bdrv_flags |= BDRV_O_NOCACHE; |
462 | 29c4e2b5 | Kevin Wolf | } |
463 | 29c4e2b5 | Kevin Wolf | if (qemu_opt_get_bool(opts, "cache.no-flush", true)) { |
464 | 29c4e2b5 | Kevin Wolf | bdrv_flags |= BDRV_O_NO_FLUSH; |
465 | 666daa68 | Markus Armbruster | } |
466 | 666daa68 | Markus Armbruster | |
467 | 666daa68 | Markus Armbruster | #ifdef CONFIG_LINUX_AIO
|
468 | 666daa68 | Markus Armbruster | if ((buf = qemu_opt_get(opts, "aio")) != NULL) { |
469 | 666daa68 | Markus Armbruster | if (!strcmp(buf, "native")) { |
470 | 666daa68 | Markus Armbruster | bdrv_flags |= BDRV_O_NATIVE_AIO; |
471 | 666daa68 | Markus Armbruster | } else if (!strcmp(buf, "threads")) { |
472 | 666daa68 | Markus Armbruster | /* this is the default */
|
473 | 666daa68 | Markus Armbruster | } else {
|
474 | 807105a7 | Markus Armbruster | error_report("invalid aio option");
|
475 | 666daa68 | Markus Armbruster | return NULL; |
476 | 666daa68 | Markus Armbruster | } |
477 | 666daa68 | Markus Armbruster | } |
478 | 666daa68 | Markus Armbruster | #endif
|
479 | 666daa68 | Markus Armbruster | |
480 | 666daa68 | Markus Armbruster | if ((buf = qemu_opt_get(opts, "format")) != NULL) { |
481 | c8057f95 | Peter Maydell | if (is_help_option(buf)) {
|
482 | c8057f95 | Peter Maydell | error_printf("Supported formats:");
|
483 | c8057f95 | Peter Maydell | bdrv_iterate_format(bdrv_format_print, NULL);
|
484 | c8057f95 | Peter Maydell | error_printf("\n");
|
485 | c8057f95 | Peter Maydell | return NULL; |
486 | 666daa68 | Markus Armbruster | } |
487 | 74fe54f2 | Kevin Wolf | |
488 | 6db5f5d6 | Mike Qiu | drv = bdrv_find_whitelisted_format(buf, ro); |
489 | 6db5f5d6 | Mike Qiu | if (!drv) {
|
490 | 7780d472 | Fam Zheng | if (!ro && bdrv_find_whitelisted_format(buf, !ro)) {
|
491 | 7780d472 | Fam Zheng | error_report("'%s' can be only used as read-only device.", buf);
|
492 | 7780d472 | Fam Zheng | } else {
|
493 | 7780d472 | Fam Zheng | error_report("'%s' invalid format", buf);
|
494 | 7780d472 | Fam Zheng | } |
495 | 6db5f5d6 | Mike Qiu | return NULL; |
496 | 6db5f5d6 | Mike Qiu | } |
497 | 666daa68 | Markus Armbruster | } |
498 | 666daa68 | Markus Armbruster | |
499 | 0563e191 | Zhi Yong Wu | /* disk I/O throttling */
|
500 | 0563e191 | Zhi Yong Wu | io_limits.bps[BLOCK_IO_LIMIT_TOTAL] = |
501 | 57975222 | Kevin Wolf | qemu_opt_get_number(opts, "throttling.bps-total", 0); |
502 | 0563e191 | Zhi Yong Wu | io_limits.bps[BLOCK_IO_LIMIT_READ] = |
503 | 57975222 | Kevin Wolf | qemu_opt_get_number(opts, "throttling.bps-read", 0); |
504 | 0563e191 | Zhi Yong Wu | io_limits.bps[BLOCK_IO_LIMIT_WRITE] = |
505 | 57975222 | Kevin Wolf | qemu_opt_get_number(opts, "throttling.bps-write", 0); |
506 | 0563e191 | Zhi Yong Wu | io_limits.iops[BLOCK_IO_LIMIT_TOTAL] = |
507 | 57975222 | Kevin Wolf | qemu_opt_get_number(opts, "throttling.iops-total", 0); |
508 | 0563e191 | Zhi Yong Wu | io_limits.iops[BLOCK_IO_LIMIT_READ] = |
509 | 57975222 | Kevin Wolf | qemu_opt_get_number(opts, "throttling.iops-read", 0); |
510 | 0563e191 | Zhi Yong Wu | io_limits.iops[BLOCK_IO_LIMIT_WRITE] = |
511 | 57975222 | Kevin Wolf | qemu_opt_get_number(opts, "throttling.iops-write", 0); |
512 | 0563e191 | Zhi Yong Wu | |
513 | c546194f | Stefan Hajnoczi | if (!do_check_io_limits(&io_limits, &error)) {
|
514 | c546194f | Stefan Hajnoczi | error_report("%s", error_get_pretty(error));
|
515 | c546194f | Stefan Hajnoczi | error_free(error); |
516 | 0563e191 | Zhi Yong Wu | return NULL; |
517 | 0563e191 | Zhi Yong Wu | } |
518 | 0563e191 | Zhi Yong Wu | |
519 | 0d92d17a | Jan Kiszka | if (qemu_opt_get(opts, "boot") != NULL) { |
520 | 0d92d17a | Jan Kiszka | fprintf(stderr, "qemu-kvm: boot=on|off is deprecated and will be "
|
521 | 0d92d17a | Jan Kiszka | "ignored. Future versions will reject this parameter. Please "
|
522 | 0d92d17a | Jan Kiszka | "update your scripts.\n");
|
523 | 0d92d17a | Jan Kiszka | } |
524 | 0d92d17a | Jan Kiszka | |
525 | 92aa5c6d | Paolo Bonzini | on_write_error = BLOCKDEV_ON_ERROR_ENOSPC; |
526 | 666daa68 | Markus Armbruster | if ((buf = qemu_opt_get(opts, "werror")) != NULL) { |
527 | 666daa68 | Markus Armbruster | if (type != IF_IDE && type != IF_SCSI && type != IF_VIRTIO && type != IF_NONE) {
|
528 | 807105a7 | Markus Armbruster | error_report("werror is not supported by this bus type");
|
529 | 666daa68 | Markus Armbruster | return NULL; |
530 | 666daa68 | Markus Armbruster | } |
531 | 666daa68 | Markus Armbruster | |
532 | 666daa68 | Markus Armbruster | on_write_error = parse_block_error_action(buf, 0);
|
533 | 666daa68 | Markus Armbruster | if (on_write_error < 0) { |
534 | 666daa68 | Markus Armbruster | return NULL; |
535 | 666daa68 | Markus Armbruster | } |
536 | 666daa68 | Markus Armbruster | } |
537 | 666daa68 | Markus Armbruster | |
538 | 92aa5c6d | Paolo Bonzini | on_read_error = BLOCKDEV_ON_ERROR_REPORT; |
539 | 666daa68 | Markus Armbruster | if ((buf = qemu_opt_get(opts, "rerror")) != NULL) { |
540 | 5dba48a8 | Kevin Wolf | if (type != IF_IDE && type != IF_VIRTIO && type != IF_SCSI && type != IF_NONE) {
|
541 | 807105a7 | Markus Armbruster | error_report("rerror is not supported by this bus type");
|
542 | 666daa68 | Markus Armbruster | return NULL; |
543 | 666daa68 | Markus Armbruster | } |
544 | 666daa68 | Markus Armbruster | |
545 | 666daa68 | Markus Armbruster | on_read_error = parse_block_error_action(buf, 1);
|
546 | 666daa68 | Markus Armbruster | if (on_read_error < 0) { |
547 | 666daa68 | Markus Armbruster | return NULL; |
548 | 666daa68 | Markus Armbruster | } |
549 | 666daa68 | Markus Armbruster | } |
550 | 666daa68 | Markus Armbruster | |
551 | 666daa68 | Markus Armbruster | if ((devaddr = qemu_opt_get(opts, "addr")) != NULL) { |
552 | 666daa68 | Markus Armbruster | if (type != IF_VIRTIO) {
|
553 | 807105a7 | Markus Armbruster | error_report("addr is not supported by this bus type");
|
554 | 666daa68 | Markus Armbruster | return NULL; |
555 | 666daa68 | Markus Armbruster | } |
556 | 666daa68 | Markus Armbruster | } |
557 | 666daa68 | Markus Armbruster | |
558 | 666daa68 | Markus Armbruster | /* compute bus and unit according index */
|
559 | 666daa68 | Markus Armbruster | |
560 | 666daa68 | Markus Armbruster | if (index != -1) { |
561 | 666daa68 | Markus Armbruster | if (bus_id != 0 || unit_id != -1) { |
562 | 807105a7 | Markus Armbruster | error_report("index cannot be used with bus and unit");
|
563 | 666daa68 | Markus Armbruster | return NULL; |
564 | 666daa68 | Markus Armbruster | } |
565 | 505a7fb1 | Markus Armbruster | bus_id = drive_index_to_bus_id(type, index); |
566 | 505a7fb1 | Markus Armbruster | unit_id = drive_index_to_unit_id(type, index); |
567 | 666daa68 | Markus Armbruster | } |
568 | 666daa68 | Markus Armbruster | |
569 | 666daa68 | Markus Armbruster | /* if user doesn't specify a unit_id,
|
570 | 666daa68 | Markus Armbruster | * try to find the first free
|
571 | 666daa68 | Markus Armbruster | */
|
572 | 666daa68 | Markus Armbruster | |
573 | 666daa68 | Markus Armbruster | if (unit_id == -1) { |
574 | 666daa68 | Markus Armbruster | unit_id = 0;
|
575 | 666daa68 | Markus Armbruster | while (drive_get(type, bus_id, unit_id) != NULL) { |
576 | 666daa68 | Markus Armbruster | unit_id++; |
577 | 666daa68 | Markus Armbruster | if (max_devs && unit_id >= max_devs) {
|
578 | 666daa68 | Markus Armbruster | unit_id -= max_devs; |
579 | 666daa68 | Markus Armbruster | bus_id++; |
580 | 666daa68 | Markus Armbruster | } |
581 | 666daa68 | Markus Armbruster | } |
582 | 666daa68 | Markus Armbruster | } |
583 | 666daa68 | Markus Armbruster | |
584 | 666daa68 | Markus Armbruster | /* check unit id */
|
585 | 666daa68 | Markus Armbruster | |
586 | 666daa68 | Markus Armbruster | if (max_devs && unit_id >= max_devs) {
|
587 | 807105a7 | Markus Armbruster | error_report("unit %d too big (max is %d)",
|
588 | 807105a7 | Markus Armbruster | unit_id, max_devs - 1);
|
589 | 666daa68 | Markus Armbruster | return NULL; |
590 | 666daa68 | Markus Armbruster | } |
591 | 666daa68 | Markus Armbruster | |
592 | 666daa68 | Markus Armbruster | /*
|
593 | 4e5d9b57 | Markus Armbruster | * catch multiple definitions
|
594 | 666daa68 | Markus Armbruster | */
|
595 | 666daa68 | Markus Armbruster | |
596 | 666daa68 | Markus Armbruster | if (drive_get(type, bus_id, unit_id) != NULL) { |
597 | 4e5d9b57 | Markus Armbruster | error_report("drive with bus=%d, unit=%d (index=%d) exists",
|
598 | 4e5d9b57 | Markus Armbruster | bus_id, unit_id, index); |
599 | 666daa68 | Markus Armbruster | return NULL; |
600 | 666daa68 | Markus Armbruster | } |
601 | 666daa68 | Markus Armbruster | |
602 | 666daa68 | Markus Armbruster | /* init */
|
603 | 666daa68 | Markus Armbruster | |
604 | 7267c094 | Anthony Liguori | dinfo = g_malloc0(sizeof(*dinfo));
|
605 | 666daa68 | Markus Armbruster | if ((buf = qemu_opts_id(opts)) != NULL) { |
606 | 7267c094 | Anthony Liguori | dinfo->id = g_strdup(buf); |
607 | 666daa68 | Markus Armbruster | } else {
|
608 | 666daa68 | Markus Armbruster | /* no id supplied -> create one */
|
609 | 7267c094 | Anthony Liguori | dinfo->id = g_malloc0(32);
|
610 | 666daa68 | Markus Armbruster | if (type == IF_IDE || type == IF_SCSI)
|
611 | 666daa68 | Markus Armbruster | mediastr = (media == MEDIA_CDROM) ? "-cd" : "-hd"; |
612 | 666daa68 | Markus Armbruster | if (max_devs)
|
613 | 666daa68 | Markus Armbruster | snprintf(dinfo->id, 32, "%s%i%s%i", |
614 | 79d21d5b | Markus Armbruster | if_name[type], bus_id, mediastr, unit_id); |
615 | 666daa68 | Markus Armbruster | else
|
616 | 666daa68 | Markus Armbruster | snprintf(dinfo->id, 32, "%s%s%i", |
617 | 79d21d5b | Markus Armbruster | if_name[type], mediastr, unit_id); |
618 | 666daa68 | Markus Armbruster | } |
619 | 666daa68 | Markus Armbruster | dinfo->bdrv = bdrv_new(dinfo->id); |
620 | 80dd1aae | Kevin Shanahan | dinfo->bdrv->open_flags = snapshot ? BDRV_O_SNAPSHOT : 0;
|
621 | 80dd1aae | Kevin Shanahan | dinfo->bdrv->read_only = ro; |
622 | 666daa68 | Markus Armbruster | dinfo->devaddr = devaddr; |
623 | 666daa68 | Markus Armbruster | dinfo->type = type; |
624 | 666daa68 | Markus Armbruster | dinfo->bus = bus_id; |
625 | 666daa68 | Markus Armbruster | dinfo->unit = unit_id; |
626 | 317bb412 | Markus Armbruster | dinfo->cyls = cyls; |
627 | 317bb412 | Markus Armbruster | dinfo->heads = heads; |
628 | 317bb412 | Markus Armbruster | dinfo->secs = secs; |
629 | 317bb412 | Markus Armbruster | dinfo->trans = translation; |
630 | 0006383e | Kevin Wolf | dinfo->opts = all_opts; |
631 | 84fb3925 | Marcelo Tosatti | dinfo->refcount = 1;
|
632 | bb44619b | Kevin Wolf | if (serial != NULL) { |
633 | bb44619b | Kevin Wolf | dinfo->serial = g_strdup(serial); |
634 | bb44619b | Kevin Wolf | } |
635 | 666daa68 | Markus Armbruster | QTAILQ_INSERT_TAIL(&drives, dinfo, next); |
636 | 666daa68 | Markus Armbruster | |
637 | abd7f68d | Markus Armbruster | bdrv_set_on_error(dinfo->bdrv, on_read_error, on_write_error); |
638 | abd7f68d | Markus Armbruster | |
639 | 0563e191 | Zhi Yong Wu | /* disk I/O throttling */
|
640 | 0563e191 | Zhi Yong Wu | bdrv_set_io_limits(dinfo->bdrv, &io_limits); |
641 | 0563e191 | Zhi Yong Wu | |
642 | 666daa68 | Markus Armbruster | switch(type) {
|
643 | 666daa68 | Markus Armbruster | case IF_IDE:
|
644 | 666daa68 | Markus Armbruster | case IF_SCSI:
|
645 | 666daa68 | Markus Armbruster | case IF_XEN:
|
646 | 666daa68 | Markus Armbruster | case IF_NONE:
|
647 | 2b584959 | Markus Armbruster | dinfo->media_cd = media == MEDIA_CDROM; |
648 | 666daa68 | Markus Armbruster | break;
|
649 | 666daa68 | Markus Armbruster | case IF_SD:
|
650 | 666daa68 | Markus Armbruster | case IF_FLOPPY:
|
651 | 666daa68 | Markus Armbruster | case IF_PFLASH:
|
652 | 666daa68 | Markus Armbruster | case IF_MTD:
|
653 | 666daa68 | Markus Armbruster | break;
|
654 | 666daa68 | Markus Armbruster | case IF_VIRTIO:
|
655 | 0006383e | Kevin Wolf | { |
656 | 666daa68 | Markus Armbruster | /* add virtio block device */
|
657 | 0006383e | Kevin Wolf | QemuOpts *devopts; |
658 | 0006383e | Kevin Wolf | devopts = qemu_opts_create_nofail(qemu_find_opts("device"));
|
659 | eeb9c1b5 | Anthony Liguori | if (arch_type == QEMU_ARCH_S390X) {
|
660 | 0006383e | Kevin Wolf | qemu_opt_set(devopts, "driver", "virtio-blk-s390"); |
661 | eeb9c1b5 | Anthony Liguori | } else {
|
662 | 0006383e | Kevin Wolf | qemu_opt_set(devopts, "driver", "virtio-blk-pci"); |
663 | eeb9c1b5 | Anthony Liguori | } |
664 | 0006383e | Kevin Wolf | qemu_opt_set(devopts, "drive", dinfo->id);
|
665 | 666daa68 | Markus Armbruster | if (devaddr)
|
666 | 0006383e | Kevin Wolf | qemu_opt_set(devopts, "addr", devaddr);
|
667 | 666daa68 | Markus Armbruster | break;
|
668 | 0006383e | Kevin Wolf | } |
669 | 2292ddae | Markus Armbruster | default:
|
670 | 666daa68 | Markus Armbruster | abort(); |
671 | 666daa68 | Markus Armbruster | } |
672 | dd5b0d71 | Markus Armbruster | if (!file || !*file) {
|
673 | 74fe54f2 | Kevin Wolf | if (has_driver_specific_opts) {
|
674 | c2ad1b0c | Kevin Wolf | file = NULL;
|
675 | c2ad1b0c | Kevin Wolf | } else {
|
676 | c2ad1b0c | Kevin Wolf | return dinfo;
|
677 | c2ad1b0c | Kevin Wolf | } |
678 | 666daa68 | Markus Armbruster | } |
679 | 666daa68 | Markus Armbruster | if (snapshot) {
|
680 | 666daa68 | Markus Armbruster | /* always use cache=unsafe with snapshot */
|
681 | 666daa68 | Markus Armbruster | bdrv_flags &= ~BDRV_O_CACHE_MASK; |
682 | 666daa68 | Markus Armbruster | bdrv_flags |= (BDRV_O_SNAPSHOT|BDRV_O_CACHE_WB|BDRV_O_NO_FLUSH); |
683 | 666daa68 | Markus Armbruster | } |
684 | 666daa68 | Markus Armbruster | |
685 | fb0490f6 | Stefan Hajnoczi | if (copy_on_read) {
|
686 | fb0490f6 | Stefan Hajnoczi | bdrv_flags |= BDRV_O_COPY_ON_READ; |
687 | fb0490f6 | Stefan Hajnoczi | } |
688 | fb0490f6 | Stefan Hajnoczi | |
689 | ed9d4205 | Benoรฎt Canet | if (runstate_check(RUN_STATE_INMIGRATE)) {
|
690 | ed9d4205 | Benoรฎt Canet | bdrv_flags |= BDRV_O_INCOMING; |
691 | ed9d4205 | Benoรฎt Canet | } |
692 | ed9d4205 | Benoรฎt Canet | |
693 | 666daa68 | Markus Armbruster | if (media == MEDIA_CDROM) {
|
694 | 666daa68 | Markus Armbruster | /* CDROM is fine for any interface, don't check. */
|
695 | 666daa68 | Markus Armbruster | ro = 1;
|
696 | 666daa68 | Markus Armbruster | } else if (ro == 1) { |
697 | 1e9eb78a | Jordan Justen | if (type != IF_SCSI && type != IF_VIRTIO && type != IF_FLOPPY &&
|
698 | 1e9eb78a | Jordan Justen | type != IF_NONE && type != IF_PFLASH) { |
699 | 0f227a94 | Kevin Wolf | error_report("read-only not supported by this bus type");
|
700 | a9ae2bff | Markus Armbruster | goto err;
|
701 | 666daa68 | Markus Armbruster | } |
702 | 666daa68 | Markus Armbruster | } |
703 | 666daa68 | Markus Armbruster | |
704 | 666daa68 | Markus Armbruster | bdrv_flags |= ro ? 0 : BDRV_O_RDWR;
|
705 | 666daa68 | Markus Armbruster | |
706 | 04d4abe9 | Stefan Hajnoczi | if (ro && copy_on_read) {
|
707 | 0f227a94 | Kevin Wolf | error_report("warning: disabling copy_on_read on read-only drive");
|
708 | 04d4abe9 | Stefan Hajnoczi | } |
709 | 04d4abe9 | Stefan Hajnoczi | |
710 | 74fe54f2 | Kevin Wolf | QINCREF(bs_opts); |
711 | 6db5f5d6 | Mike Qiu | ret = bdrv_open(dinfo->bdrv, file, bs_opts, bdrv_flags, drv); |
712 | 0006383e | Kevin Wolf | |
713 | 666daa68 | Markus Armbruster | if (ret < 0) { |
714 | 02582abd | Stefan Weil | if (ret == -EMEDIUMTYPE) {
|
715 | 02582abd | Stefan Weil | error_report("could not open disk image %s: not in %s format",
|
716 | 6db5f5d6 | Mike Qiu | file ?: dinfo->id, drv ? drv->format_name : |
717 | 6db5f5d6 | Mike Qiu | qdict_get_str(bs_opts, "driver"));
|
718 | 02582abd | Stefan Weil | } else {
|
719 | 02582abd | Stefan Weil | error_report("could not open disk image %s: %s",
|
720 | c2ad1b0c | Kevin Wolf | file ?: dinfo->id, strerror(-ret)); |
721 | 02582abd | Stefan Weil | } |
722 | a9ae2bff | Markus Armbruster | goto err;
|
723 | 666daa68 | Markus Armbruster | } |
724 | 666daa68 | Markus Armbruster | |
725 | 666daa68 | Markus Armbruster | if (bdrv_key_required(dinfo->bdrv))
|
726 | 666daa68 | Markus Armbruster | autostart = 0;
|
727 | 0006383e | Kevin Wolf | |
728 | 74fe54f2 | Kevin Wolf | QDECREF(bs_opts); |
729 | 0006383e | Kevin Wolf | qemu_opts_del(opts); |
730 | 0006383e | Kevin Wolf | |
731 | 666daa68 | Markus Armbruster | return dinfo;
|
732 | a9ae2bff | Markus Armbruster | |
733 | a9ae2bff | Markus Armbruster | err:
|
734 | 0006383e | Kevin Wolf | qemu_opts_del(opts); |
735 | 0006383e | Kevin Wolf | QDECREF(bs_opts); |
736 | a9ae2bff | Markus Armbruster | bdrv_delete(dinfo->bdrv); |
737 | 7267c094 | Anthony Liguori | g_free(dinfo->id); |
738 | a9ae2bff | Markus Armbruster | QTAILQ_REMOVE(&drives, dinfo, next); |
739 | 7267c094 | Anthony Liguori | g_free(dinfo); |
740 | a9ae2bff | Markus Armbruster | return NULL; |
741 | 666daa68 | Markus Armbruster | } |
742 | 666daa68 | Markus Armbruster | |
743 | 57975222 | Kevin Wolf | static void qemu_opt_rename(QemuOpts *opts, const char *from, const char *to) |
744 | 57975222 | Kevin Wolf | { |
745 | 57975222 | Kevin Wolf | const char *value; |
746 | 57975222 | Kevin Wolf | |
747 | 57975222 | Kevin Wolf | value = qemu_opt_get(opts, from); |
748 | 57975222 | Kevin Wolf | if (value) {
|
749 | 57975222 | Kevin Wolf | qemu_opt_set(opts, to, value); |
750 | 57975222 | Kevin Wolf | qemu_opt_unset(opts, from); |
751 | 57975222 | Kevin Wolf | } |
752 | 57975222 | Kevin Wolf | } |
753 | 57975222 | Kevin Wolf | |
754 | 57975222 | Kevin Wolf | DriveInfo *drive_init(QemuOpts *all_opts, BlockInterfaceType block_default_type) |
755 | 57975222 | Kevin Wolf | { |
756 | 29c4e2b5 | Kevin Wolf | const char *value; |
757 | 29c4e2b5 | Kevin Wolf | |
758 | 8afaefb8 | Kevin Wolf | /*
|
759 | 8afaefb8 | Kevin Wolf | * Check that only old options are used by copying into a QemuOpts with
|
760 | 8afaefb8 | Kevin Wolf | * stricter checks. Going through a QDict seems to be the easiest way to
|
761 | 8afaefb8 | Kevin Wolf | * achieve this...
|
762 | 8afaefb8 | Kevin Wolf | */
|
763 | 8afaefb8 | Kevin Wolf | QemuOpts* check_opts; |
764 | 8afaefb8 | Kevin Wolf | QDict *qdict; |
765 | 8afaefb8 | Kevin Wolf | Error *local_err = NULL;
|
766 | 8afaefb8 | Kevin Wolf | |
767 | 8afaefb8 | Kevin Wolf | qdict = qemu_opts_to_qdict(all_opts, NULL);
|
768 | 8afaefb8 | Kevin Wolf | check_opts = qemu_opts_from_qdict(&qemu_old_drive_opts, qdict, &local_err); |
769 | 8afaefb8 | Kevin Wolf | QDECREF(qdict); |
770 | 8afaefb8 | Kevin Wolf | |
771 | 8afaefb8 | Kevin Wolf | if (error_is_set(&local_err)) {
|
772 | 8afaefb8 | Kevin Wolf | qerror_report_err(local_err); |
773 | 8afaefb8 | Kevin Wolf | error_free(local_err); |
774 | 8afaefb8 | Kevin Wolf | return NULL; |
775 | 8afaefb8 | Kevin Wolf | } |
776 | 8afaefb8 | Kevin Wolf | qemu_opts_del(check_opts); |
777 | 8afaefb8 | Kevin Wolf | |
778 | 57975222 | Kevin Wolf | /* Change legacy command line options into QMP ones */
|
779 | 57975222 | Kevin Wolf | qemu_opt_rename(all_opts, "iops", "throttling.iops-total"); |
780 | 57975222 | Kevin Wolf | qemu_opt_rename(all_opts, "iops_rd", "throttling.iops-read"); |
781 | 57975222 | Kevin Wolf | qemu_opt_rename(all_opts, "iops_wr", "throttling.iops-write"); |
782 | 57975222 | Kevin Wolf | |
783 | 57975222 | Kevin Wolf | qemu_opt_rename(all_opts, "bps", "throttling.bps-total"); |
784 | 57975222 | Kevin Wolf | qemu_opt_rename(all_opts, "bps_rd", "throttling.bps-read"); |
785 | 57975222 | Kevin Wolf | qemu_opt_rename(all_opts, "bps_wr", "throttling.bps-write"); |
786 | 57975222 | Kevin Wolf | |
787 | 0f227a94 | Kevin Wolf | qemu_opt_rename(all_opts, "readonly", "read-only"); |
788 | 0f227a94 | Kevin Wolf | |
789 | 29c4e2b5 | Kevin Wolf | value = qemu_opt_get(all_opts, "cache");
|
790 | 29c4e2b5 | Kevin Wolf | if (value) {
|
791 | 29c4e2b5 | Kevin Wolf | int flags = 0; |
792 | 29c4e2b5 | Kevin Wolf | |
793 | 29c4e2b5 | Kevin Wolf | if (bdrv_parse_cache_flags(value, &flags) != 0) { |
794 | 29c4e2b5 | Kevin Wolf | error_report("invalid cache option");
|
795 | 29c4e2b5 | Kevin Wolf | return NULL; |
796 | 29c4e2b5 | Kevin Wolf | } |
797 | 29c4e2b5 | Kevin Wolf | |
798 | 29c4e2b5 | Kevin Wolf | /* Specific options take precedence */
|
799 | 29c4e2b5 | Kevin Wolf | if (!qemu_opt_get(all_opts, "cache.writeback")) { |
800 | 29c4e2b5 | Kevin Wolf | qemu_opt_set_bool(all_opts, "cache.writeback",
|
801 | 29c4e2b5 | Kevin Wolf | !!(flags & BDRV_O_CACHE_WB)); |
802 | 29c4e2b5 | Kevin Wolf | } |
803 | 29c4e2b5 | Kevin Wolf | if (!qemu_opt_get(all_opts, "cache.direct")) { |
804 | 29c4e2b5 | Kevin Wolf | qemu_opt_set_bool(all_opts, "cache.direct",
|
805 | 29c4e2b5 | Kevin Wolf | !!(flags & BDRV_O_NOCACHE)); |
806 | 29c4e2b5 | Kevin Wolf | } |
807 | 29c4e2b5 | Kevin Wolf | if (!qemu_opt_get(all_opts, "cache.no-flush")) { |
808 | 29c4e2b5 | Kevin Wolf | qemu_opt_set_bool(all_opts, "cache.no-flush",
|
809 | 29c4e2b5 | Kevin Wolf | !!(flags & BDRV_O_NO_FLUSH)); |
810 | 29c4e2b5 | Kevin Wolf | } |
811 | 29c4e2b5 | Kevin Wolf | qemu_opt_unset(all_opts, "cache");
|
812 | 29c4e2b5 | Kevin Wolf | } |
813 | 29c4e2b5 | Kevin Wolf | |
814 | 57975222 | Kevin Wolf | return blockdev_init(all_opts, block_default_type);
|
815 | 57975222 | Kevin Wolf | } |
816 | 57975222 | Kevin Wolf | |
817 | 666daa68 | Markus Armbruster | void do_commit(Monitor *mon, const QDict *qdict) |
818 | 666daa68 | Markus Armbruster | { |
819 | 666daa68 | Markus Armbruster | const char *device = qdict_get_str(qdict, "device"); |
820 | 6ab4b5ab | Markus Armbruster | BlockDriverState *bs; |
821 | e8877497 | Stefan Hajnoczi | int ret;
|
822 | 666daa68 | Markus Armbruster | |
823 | 6ab4b5ab | Markus Armbruster | if (!strcmp(device, "all")) { |
824 | e8877497 | Stefan Hajnoczi | ret = bdrv_commit_all(); |
825 | 6ab4b5ab | Markus Armbruster | } else {
|
826 | 6ab4b5ab | Markus Armbruster | bs = bdrv_find(device); |
827 | ac59eb95 | Markus Armbruster | if (!bs) {
|
828 | 58513bde | Jeff Cody | monitor_printf(mon, "Device '%s' not found\n", device);
|
829 | ac59eb95 | Markus Armbruster | return;
|
830 | 6ab4b5ab | Markus Armbruster | } |
831 | 2d3735d3 | Stefan Hajnoczi | ret = bdrv_commit(bs); |
832 | 58513bde | Jeff Cody | } |
833 | 58513bde | Jeff Cody | if (ret < 0) { |
834 | 58513bde | Jeff Cody | monitor_printf(mon, "'commit' error for '%s': %s\n", device,
|
835 | 58513bde | Jeff Cody | strerror(-ret)); |
836 | 666daa68 | Markus Armbruster | } |
837 | 666daa68 | Markus Armbruster | } |
838 | 666daa68 | Markus Armbruster | |
839 | 6cc2a415 | Paolo Bonzini | static void blockdev_do_action(int kind, void *data, Error **errp) |
840 | 6cc2a415 | Paolo Bonzini | { |
841 | c8a83e85 | Kevin Wolf | TransactionAction action; |
842 | c8a83e85 | Kevin Wolf | TransactionActionList list; |
843 | 6cc2a415 | Paolo Bonzini | |
844 | 6cc2a415 | Paolo Bonzini | action.kind = kind; |
845 | 6cc2a415 | Paolo Bonzini | action.data = data; |
846 | 6cc2a415 | Paolo Bonzini | list.value = &action; |
847 | 6cc2a415 | Paolo Bonzini | list.next = NULL;
|
848 | 6cc2a415 | Paolo Bonzini | qmp_transaction(&list, errp); |
849 | 6cc2a415 | Paolo Bonzini | } |
850 | 6cc2a415 | Paolo Bonzini | |
851 | 6106e249 | Luiz Capitulino | void qmp_blockdev_snapshot_sync(const char *device, const char *snapshot_file, |
852 | 6106e249 | Luiz Capitulino | bool has_format, const char *format, |
853 | 6cc2a415 | Paolo Bonzini | bool has_mode, enum NewImageMode mode, |
854 | 6106e249 | Luiz Capitulino | Error **errp) |
855 | f8882568 | Jes Sorensen | { |
856 | 6cc2a415 | Paolo Bonzini | BlockdevSnapshot snapshot = { |
857 | 6cc2a415 | Paolo Bonzini | .device = (char *) device,
|
858 | 6cc2a415 | Paolo Bonzini | .snapshot_file = (char *) snapshot_file,
|
859 | 6cc2a415 | Paolo Bonzini | .has_format = has_format, |
860 | 6cc2a415 | Paolo Bonzini | .format = (char *) format,
|
861 | 6cc2a415 | Paolo Bonzini | .has_mode = has_mode, |
862 | 6cc2a415 | Paolo Bonzini | .mode = mode, |
863 | 6cc2a415 | Paolo Bonzini | }; |
864 | c8a83e85 | Kevin Wolf | blockdev_do_action(TRANSACTION_ACTION_KIND_BLOCKDEV_SNAPSHOT_SYNC, |
865 | c8a83e85 | Kevin Wolf | &snapshot, errp); |
866 | f8882568 | Jes Sorensen | } |
867 | f8882568 | Jes Sorensen | |
868 | 8802d1fd | Jeff Cody | |
869 | 8802d1fd | Jeff Cody | /* New and old BlockDriverState structs for group snapshots */
|
870 | ba0c86a3 | Wenchao Xia | |
871 | ba5d6ab6 | Stefan Hajnoczi | typedef struct BlkTransactionState BlkTransactionState; |
872 | ba0c86a3 | Wenchao Xia | |
873 | ba0c86a3 | Wenchao Xia | /* Only prepare() may fail. In a single transaction, only one of commit() or
|
874 | ba0c86a3 | Wenchao Xia | abort() will be called, clean() will always be called if it present. */
|
875 | ba0c86a3 | Wenchao Xia | typedef struct BdrvActionOps { |
876 | ba0c86a3 | Wenchao Xia | /* Size of state struct, in bytes. */
|
877 | ba0c86a3 | Wenchao Xia | size_t instance_size; |
878 | ba0c86a3 | Wenchao Xia | /* Prepare the work, must NOT be NULL. */
|
879 | ba5d6ab6 | Stefan Hajnoczi | void (*prepare)(BlkTransactionState *common, Error **errp);
|
880 | f9ea81e8 | Stefan Hajnoczi | /* Commit the changes, can be NULL. */
|
881 | ba5d6ab6 | Stefan Hajnoczi | void (*commit)(BlkTransactionState *common);
|
882 | ba0c86a3 | Wenchao Xia | /* Abort the changes on fail, can be NULL. */
|
883 | ba5d6ab6 | Stefan Hajnoczi | void (*abort)(BlkTransactionState *common);
|
884 | ba0c86a3 | Wenchao Xia | /* Clean up resource in the end, can be NULL. */
|
885 | ba5d6ab6 | Stefan Hajnoczi | void (*clean)(BlkTransactionState *common);
|
886 | ba0c86a3 | Wenchao Xia | } BdrvActionOps; |
887 | ba0c86a3 | Wenchao Xia | |
888 | ba0c86a3 | Wenchao Xia | /*
|
889 | ba0c86a3 | Wenchao Xia | * This structure must be arranged as first member in child type, assuming
|
890 | ba0c86a3 | Wenchao Xia | * that compiler will also arrange it to the same address with parent instance.
|
891 | ba0c86a3 | Wenchao Xia | * Later it will be used in free().
|
892 | ba0c86a3 | Wenchao Xia | */
|
893 | ba5d6ab6 | Stefan Hajnoczi | struct BlkTransactionState {
|
894 | c8a83e85 | Kevin Wolf | TransactionAction *action; |
895 | ba0c86a3 | Wenchao Xia | const BdrvActionOps *ops;
|
896 | ba5d6ab6 | Stefan Hajnoczi | QSIMPLEQ_ENTRY(BlkTransactionState) entry; |
897 | ba0c86a3 | Wenchao Xia | }; |
898 | ba0c86a3 | Wenchao Xia | |
899 | ba0c86a3 | Wenchao Xia | /* external snapshot private data */
|
900 | ba5d6ab6 | Stefan Hajnoczi | typedef struct ExternalSnapshotState { |
901 | ba5d6ab6 | Stefan Hajnoczi | BlkTransactionState common; |
902 | 8802d1fd | Jeff Cody | BlockDriverState *old_bs; |
903 | 8802d1fd | Jeff Cody | BlockDriverState *new_bs; |
904 | ba5d6ab6 | Stefan Hajnoczi | } ExternalSnapshotState; |
905 | 8802d1fd | Jeff Cody | |
906 | ba5d6ab6 | Stefan Hajnoczi | static void external_snapshot_prepare(BlkTransactionState *common, |
907 | 9b9877ee | Wenchao Xia | Error **errp) |
908 | 9b9877ee | Wenchao Xia | { |
909 | 9b9877ee | Wenchao Xia | BlockDriver *drv; |
910 | 9b9877ee | Wenchao Xia | int flags, ret;
|
911 | 9b9877ee | Wenchao Xia | Error *local_err = NULL;
|
912 | e2a31e87 | Wenchao Xia | const char *device; |
913 | e2a31e87 | Wenchao Xia | const char *new_image_file; |
914 | e2a31e87 | Wenchao Xia | const char *format = "qcow2"; |
915 | e2a31e87 | Wenchao Xia | enum NewImageMode mode = NEW_IMAGE_MODE_ABSOLUTE_PATHS;
|
916 | ba5d6ab6 | Stefan Hajnoczi | ExternalSnapshotState *state = |
917 | ba5d6ab6 | Stefan Hajnoczi | DO_UPCAST(ExternalSnapshotState, common, common); |
918 | c8a83e85 | Kevin Wolf | TransactionAction *action = common->action; |
919 | 9b9877ee | Wenchao Xia | |
920 | e2a31e87 | Wenchao Xia | /* get parameters */
|
921 | c8a83e85 | Kevin Wolf | g_assert(action->kind == TRANSACTION_ACTION_KIND_BLOCKDEV_SNAPSHOT_SYNC); |
922 | e2a31e87 | Wenchao Xia | |
923 | e2a31e87 | Wenchao Xia | device = action->blockdev_snapshot_sync->device; |
924 | e2a31e87 | Wenchao Xia | new_image_file = action->blockdev_snapshot_sync->snapshot_file; |
925 | e2a31e87 | Wenchao Xia | if (action->blockdev_snapshot_sync->has_format) {
|
926 | e2a31e87 | Wenchao Xia | format = action->blockdev_snapshot_sync->format; |
927 | e2a31e87 | Wenchao Xia | } |
928 | e2a31e87 | Wenchao Xia | if (action->blockdev_snapshot_sync->has_mode) {
|
929 | e2a31e87 | Wenchao Xia | mode = action->blockdev_snapshot_sync->mode; |
930 | e2a31e87 | Wenchao Xia | } |
931 | e2a31e87 | Wenchao Xia | |
932 | e2a31e87 | Wenchao Xia | /* start processing */
|
933 | 9b9877ee | Wenchao Xia | drv = bdrv_find_format(format); |
934 | 9b9877ee | Wenchao Xia | if (!drv) {
|
935 | 9b9877ee | Wenchao Xia | error_set(errp, QERR_INVALID_BLOCK_FORMAT, format); |
936 | 9b9877ee | Wenchao Xia | return;
|
937 | 9b9877ee | Wenchao Xia | } |
938 | 9b9877ee | Wenchao Xia | |
939 | ba5d6ab6 | Stefan Hajnoczi | state->old_bs = bdrv_find(device); |
940 | ba5d6ab6 | Stefan Hajnoczi | if (!state->old_bs) {
|
941 | 9b9877ee | Wenchao Xia | error_set(errp, QERR_DEVICE_NOT_FOUND, device); |
942 | 9b9877ee | Wenchao Xia | return;
|
943 | 9b9877ee | Wenchao Xia | } |
944 | 9b9877ee | Wenchao Xia | |
945 | ba5d6ab6 | Stefan Hajnoczi | if (!bdrv_is_inserted(state->old_bs)) {
|
946 | 9b9877ee | Wenchao Xia | error_set(errp, QERR_DEVICE_HAS_NO_MEDIUM, device); |
947 | 9b9877ee | Wenchao Xia | return;
|
948 | 9b9877ee | Wenchao Xia | } |
949 | 9b9877ee | Wenchao Xia | |
950 | ba5d6ab6 | Stefan Hajnoczi | if (bdrv_in_use(state->old_bs)) {
|
951 | 9b9877ee | Wenchao Xia | error_set(errp, QERR_DEVICE_IN_USE, device); |
952 | 9b9877ee | Wenchao Xia | return;
|
953 | 9b9877ee | Wenchao Xia | } |
954 | 9b9877ee | Wenchao Xia | |
955 | ba5d6ab6 | Stefan Hajnoczi | if (!bdrv_is_read_only(state->old_bs)) {
|
956 | ba5d6ab6 | Stefan Hajnoczi | if (bdrv_flush(state->old_bs)) {
|
957 | 9b9877ee | Wenchao Xia | error_set(errp, QERR_IO_ERROR); |
958 | 9b9877ee | Wenchao Xia | return;
|
959 | 9b9877ee | Wenchao Xia | } |
960 | 9b9877ee | Wenchao Xia | } |
961 | 9b9877ee | Wenchao Xia | |
962 | ba5d6ab6 | Stefan Hajnoczi | flags = state->old_bs->open_flags; |
963 | 9b9877ee | Wenchao Xia | |
964 | 9b9877ee | Wenchao Xia | /* create new image w/backing file */
|
965 | 9b9877ee | Wenchao Xia | if (mode != NEW_IMAGE_MODE_EXISTING) {
|
966 | 9b9877ee | Wenchao Xia | bdrv_img_create(new_image_file, format, |
967 | ba5d6ab6 | Stefan Hajnoczi | state->old_bs->filename, |
968 | ba5d6ab6 | Stefan Hajnoczi | state->old_bs->drv->format_name, |
969 | 9b9877ee | Wenchao Xia | NULL, -1, flags, &local_err, false); |
970 | 9b9877ee | Wenchao Xia | if (error_is_set(&local_err)) {
|
971 | 9b9877ee | Wenchao Xia | error_propagate(errp, local_err); |
972 | 9b9877ee | Wenchao Xia | return;
|
973 | 9b9877ee | Wenchao Xia | } |
974 | 9b9877ee | Wenchao Xia | } |
975 | 9b9877ee | Wenchao Xia | |
976 | 9b9877ee | Wenchao Xia | /* We will manually add the backing_hd field to the bs later */
|
977 | ba5d6ab6 | Stefan Hajnoczi | state->new_bs = bdrv_new("");
|
978 | 9b9877ee | Wenchao Xia | /* TODO Inherit bs->options or only take explicit options with an
|
979 | 9b9877ee | Wenchao Xia | * extended QMP command? */
|
980 | ba5d6ab6 | Stefan Hajnoczi | ret = bdrv_open(state->new_bs, new_image_file, NULL,
|
981 | 9b9877ee | Wenchao Xia | flags | BDRV_O_NO_BACKING, drv); |
982 | 9b9877ee | Wenchao Xia | if (ret != 0) { |
983 | 0eef407c | Luiz Capitulino | error_setg_file_open(errp, -ret, new_image_file); |
984 | 9b9877ee | Wenchao Xia | } |
985 | 9b9877ee | Wenchao Xia | } |
986 | 9b9877ee | Wenchao Xia | |
987 | ba5d6ab6 | Stefan Hajnoczi | static void external_snapshot_commit(BlkTransactionState *common) |
988 | 3b0047e8 | Wenchao Xia | { |
989 | ba5d6ab6 | Stefan Hajnoczi | ExternalSnapshotState *state = |
990 | ba5d6ab6 | Stefan Hajnoczi | DO_UPCAST(ExternalSnapshotState, common, common); |
991 | ba0c86a3 | Wenchao Xia | |
992 | ba5d6ab6 | Stefan Hajnoczi | /* This removes our old bs and adds the new bs */
|
993 | ba5d6ab6 | Stefan Hajnoczi | bdrv_append(state->new_bs, state->old_bs); |
994 | 3b0047e8 | Wenchao Xia | /* We don't need (or want) to use the transactional
|
995 | 3b0047e8 | Wenchao Xia | * bdrv_reopen_multiple() across all the entries at once, because we
|
996 | 3b0047e8 | Wenchao Xia | * don't want to abort all of them if one of them fails the reopen */
|
997 | ba5d6ab6 | Stefan Hajnoczi | bdrv_reopen(state->new_bs, state->new_bs->open_flags & ~BDRV_O_RDWR, |
998 | 3b0047e8 | Wenchao Xia | NULL);
|
999 | 3b0047e8 | Wenchao Xia | } |
1000 | 3b0047e8 | Wenchao Xia | |
1001 | ba5d6ab6 | Stefan Hajnoczi | static void external_snapshot_abort(BlkTransactionState *common) |
1002 | 96b86bf7 | Wenchao Xia | { |
1003 | ba5d6ab6 | Stefan Hajnoczi | ExternalSnapshotState *state = |
1004 | ba5d6ab6 | Stefan Hajnoczi | DO_UPCAST(ExternalSnapshotState, common, common); |
1005 | ba5d6ab6 | Stefan Hajnoczi | if (state->new_bs) {
|
1006 | ba5d6ab6 | Stefan Hajnoczi | bdrv_delete(state->new_bs); |
1007 | 96b86bf7 | Wenchao Xia | } |
1008 | 96b86bf7 | Wenchao Xia | } |
1009 | 96b86bf7 | Wenchao Xia | |
1010 | 3037f364 | Stefan Hajnoczi | typedef struct DriveBackupState { |
1011 | 3037f364 | Stefan Hajnoczi | BlkTransactionState common; |
1012 | 3037f364 | Stefan Hajnoczi | BlockDriverState *bs; |
1013 | 3037f364 | Stefan Hajnoczi | BlockJob *job; |
1014 | 3037f364 | Stefan Hajnoczi | } DriveBackupState; |
1015 | 3037f364 | Stefan Hajnoczi | |
1016 | 3037f364 | Stefan Hajnoczi | static void drive_backup_prepare(BlkTransactionState *common, Error **errp) |
1017 | 3037f364 | Stefan Hajnoczi | { |
1018 | 3037f364 | Stefan Hajnoczi | DriveBackupState *state = DO_UPCAST(DriveBackupState, common, common); |
1019 | 3037f364 | Stefan Hajnoczi | DriveBackup *backup; |
1020 | 3037f364 | Stefan Hajnoczi | Error *local_err = NULL;
|
1021 | 3037f364 | Stefan Hajnoczi | |
1022 | 3037f364 | Stefan Hajnoczi | assert(common->action->kind == TRANSACTION_ACTION_KIND_DRIVE_BACKUP); |
1023 | 3037f364 | Stefan Hajnoczi | backup = common->action->drive_backup; |
1024 | 3037f364 | Stefan Hajnoczi | |
1025 | 3037f364 | Stefan Hajnoczi | qmp_drive_backup(backup->device, backup->target, |
1026 | 3037f364 | Stefan Hajnoczi | backup->has_format, backup->format, |
1027 | b53169ea | Stefan Hajnoczi | backup->sync, |
1028 | 3037f364 | Stefan Hajnoczi | backup->has_mode, backup->mode, |
1029 | 3037f364 | Stefan Hajnoczi | backup->has_speed, backup->speed, |
1030 | 3037f364 | Stefan Hajnoczi | backup->has_on_source_error, backup->on_source_error, |
1031 | 3037f364 | Stefan Hajnoczi | backup->has_on_target_error, backup->on_target_error, |
1032 | 3037f364 | Stefan Hajnoczi | &local_err); |
1033 | 3037f364 | Stefan Hajnoczi | if (error_is_set(&local_err)) {
|
1034 | 3037f364 | Stefan Hajnoczi | error_propagate(errp, local_err); |
1035 | 3037f364 | Stefan Hajnoczi | state->bs = NULL;
|
1036 | 3037f364 | Stefan Hajnoczi | state->job = NULL;
|
1037 | 3037f364 | Stefan Hajnoczi | return;
|
1038 | 3037f364 | Stefan Hajnoczi | } |
1039 | 3037f364 | Stefan Hajnoczi | |
1040 | 3037f364 | Stefan Hajnoczi | state->bs = bdrv_find(backup->device); |
1041 | 3037f364 | Stefan Hajnoczi | state->job = state->bs->job; |
1042 | 3037f364 | Stefan Hajnoczi | } |
1043 | 3037f364 | Stefan Hajnoczi | |
1044 | 3037f364 | Stefan Hajnoczi | static void drive_backup_abort(BlkTransactionState *common) |
1045 | 3037f364 | Stefan Hajnoczi | { |
1046 | 3037f364 | Stefan Hajnoczi | DriveBackupState *state = DO_UPCAST(DriveBackupState, common, common); |
1047 | 3037f364 | Stefan Hajnoczi | BlockDriverState *bs = state->bs; |
1048 | 3037f364 | Stefan Hajnoczi | |
1049 | 3037f364 | Stefan Hajnoczi | /* Only cancel if it's the job we started */
|
1050 | 3037f364 | Stefan Hajnoczi | if (bs && bs->job && bs->job == state->job) {
|
1051 | 3037f364 | Stefan Hajnoczi | block_job_cancel_sync(bs->job); |
1052 | 3037f364 | Stefan Hajnoczi | } |
1053 | 3037f364 | Stefan Hajnoczi | } |
1054 | 3037f364 | Stefan Hajnoczi | |
1055 | 78b18b78 | Stefan Hajnoczi | static void abort_prepare(BlkTransactionState *common, Error **errp) |
1056 | 78b18b78 | Stefan Hajnoczi | { |
1057 | 78b18b78 | Stefan Hajnoczi | error_setg(errp, "Transaction aborted using Abort action");
|
1058 | 78b18b78 | Stefan Hajnoczi | } |
1059 | 78b18b78 | Stefan Hajnoczi | |
1060 | 78b18b78 | Stefan Hajnoczi | static void abort_commit(BlkTransactionState *common) |
1061 | 78b18b78 | Stefan Hajnoczi | { |
1062 | dfc6f865 | Stefan Weil | g_assert_not_reached(); /* this action never succeeds */
|
1063 | 78b18b78 | Stefan Hajnoczi | } |
1064 | 78b18b78 | Stefan Hajnoczi | |
1065 | ba0c86a3 | Wenchao Xia | static const BdrvActionOps actions[] = { |
1066 | c8a83e85 | Kevin Wolf | [TRANSACTION_ACTION_KIND_BLOCKDEV_SNAPSHOT_SYNC] = { |
1067 | ba5d6ab6 | Stefan Hajnoczi | .instance_size = sizeof(ExternalSnapshotState),
|
1068 | ba0c86a3 | Wenchao Xia | .prepare = external_snapshot_prepare, |
1069 | ba0c86a3 | Wenchao Xia | .commit = external_snapshot_commit, |
1070 | ba0c86a3 | Wenchao Xia | .abort = external_snapshot_abort, |
1071 | ba0c86a3 | Wenchao Xia | }, |
1072 | 3037f364 | Stefan Hajnoczi | [TRANSACTION_ACTION_KIND_DRIVE_BACKUP] = { |
1073 | 3037f364 | Stefan Hajnoczi | .instance_size = sizeof(DriveBackupState),
|
1074 | 3037f364 | Stefan Hajnoczi | .prepare = drive_backup_prepare, |
1075 | 3037f364 | Stefan Hajnoczi | .abort = drive_backup_abort, |
1076 | 3037f364 | Stefan Hajnoczi | }, |
1077 | 78b18b78 | Stefan Hajnoczi | [TRANSACTION_ACTION_KIND_ABORT] = { |
1078 | 78b18b78 | Stefan Hajnoczi | .instance_size = sizeof(BlkTransactionState),
|
1079 | 78b18b78 | Stefan Hajnoczi | .prepare = abort_prepare, |
1080 | 78b18b78 | Stefan Hajnoczi | .commit = abort_commit, |
1081 | 78b18b78 | Stefan Hajnoczi | }, |
1082 | ba0c86a3 | Wenchao Xia | }; |
1083 | ba0c86a3 | Wenchao Xia | |
1084 | 8802d1fd | Jeff Cody | /*
|
1085 | 8802d1fd | Jeff Cody | * 'Atomic' group snapshots. The snapshots are taken as a set, and if any fail
|
1086 | 8802d1fd | Jeff Cody | * then we do not pivot any of the devices in the group, and abandon the
|
1087 | 8802d1fd | Jeff Cody | * snapshots
|
1088 | 8802d1fd | Jeff Cody | */
|
1089 | c8a83e85 | Kevin Wolf | void qmp_transaction(TransactionActionList *dev_list, Error **errp)
|
1090 | 8802d1fd | Jeff Cody | { |
1091 | c8a83e85 | Kevin Wolf | TransactionActionList *dev_entry = dev_list; |
1092 | ba5d6ab6 | Stefan Hajnoczi | BlkTransactionState *state, *next; |
1093 | 43e17041 | Luiz Capitulino | Error *local_err = NULL;
|
1094 | 8802d1fd | Jeff Cody | |
1095 | ba5d6ab6 | Stefan Hajnoczi | QSIMPLEQ_HEAD(snap_bdrv_states, BlkTransactionState) snap_bdrv_states; |
1096 | 8802d1fd | Jeff Cody | QSIMPLEQ_INIT(&snap_bdrv_states); |
1097 | 8802d1fd | Jeff Cody | |
1098 | 8802d1fd | Jeff Cody | /* drain all i/o before any snapshots */
|
1099 | 8802d1fd | Jeff Cody | bdrv_drain_all(); |
1100 | 8802d1fd | Jeff Cody | |
1101 | 8802d1fd | Jeff Cody | /* We don't do anything in this loop that commits us to the snapshot */
|
1102 | 8802d1fd | Jeff Cody | while (NULL != dev_entry) { |
1103 | c8a83e85 | Kevin Wolf | TransactionAction *dev_info = NULL;
|
1104 | ba0c86a3 | Wenchao Xia | const BdrvActionOps *ops;
|
1105 | 52e7c241 | Paolo Bonzini | |
1106 | 8802d1fd | Jeff Cody | dev_info = dev_entry->value; |
1107 | 8802d1fd | Jeff Cody | dev_entry = dev_entry->next; |
1108 | 8802d1fd | Jeff Cody | |
1109 | ba0c86a3 | Wenchao Xia | assert(dev_info->kind < ARRAY_SIZE(actions)); |
1110 | ba0c86a3 | Wenchao Xia | |
1111 | ba0c86a3 | Wenchao Xia | ops = &actions[dev_info->kind]; |
1112 | ba5d6ab6 | Stefan Hajnoczi | state = g_malloc0(ops->instance_size); |
1113 | ba5d6ab6 | Stefan Hajnoczi | state->ops = ops; |
1114 | ba5d6ab6 | Stefan Hajnoczi | state->action = dev_info; |
1115 | ba5d6ab6 | Stefan Hajnoczi | QSIMPLEQ_INSERT_TAIL(&snap_bdrv_states, state, entry); |
1116 | 8802d1fd | Jeff Cody | |
1117 | ba5d6ab6 | Stefan Hajnoczi | state->ops->prepare(state, &local_err); |
1118 | ba0c86a3 | Wenchao Xia | if (error_is_set(&local_err)) {
|
1119 | ba0c86a3 | Wenchao Xia | error_propagate(errp, local_err); |
1120 | ba0c86a3 | Wenchao Xia | goto delete_and_fail;
|
1121 | 8802d1fd | Jeff Cody | } |
1122 | 8802d1fd | Jeff Cody | } |
1123 | 8802d1fd | Jeff Cody | |
1124 | ba5d6ab6 | Stefan Hajnoczi | QSIMPLEQ_FOREACH(state, &snap_bdrv_states, entry) { |
1125 | f9ea81e8 | Stefan Hajnoczi | if (state->ops->commit) {
|
1126 | f9ea81e8 | Stefan Hajnoczi | state->ops->commit(state); |
1127 | f9ea81e8 | Stefan Hajnoczi | } |
1128 | 8802d1fd | Jeff Cody | } |
1129 | 8802d1fd | Jeff Cody | |
1130 | 8802d1fd | Jeff Cody | /* success */
|
1131 | 8802d1fd | Jeff Cody | goto exit;
|
1132 | 8802d1fd | Jeff Cody | |
1133 | 8802d1fd | Jeff Cody | delete_and_fail:
|
1134 | 8802d1fd | Jeff Cody | /*
|
1135 | 8802d1fd | Jeff Cody | * failure, and it is all-or-none; abandon each new bs, and keep using
|
1136 | 8802d1fd | Jeff Cody | * the original bs for all images
|
1137 | 8802d1fd | Jeff Cody | */
|
1138 | ba5d6ab6 | Stefan Hajnoczi | QSIMPLEQ_FOREACH(state, &snap_bdrv_states, entry) { |
1139 | ba5d6ab6 | Stefan Hajnoczi | if (state->ops->abort) {
|
1140 | ba5d6ab6 | Stefan Hajnoczi | state->ops->abort(state); |
1141 | ba0c86a3 | Wenchao Xia | } |
1142 | 8802d1fd | Jeff Cody | } |
1143 | 8802d1fd | Jeff Cody | exit:
|
1144 | ba5d6ab6 | Stefan Hajnoczi | QSIMPLEQ_FOREACH_SAFE(state, &snap_bdrv_states, entry, next) { |
1145 | ba5d6ab6 | Stefan Hajnoczi | if (state->ops->clean) {
|
1146 | ba5d6ab6 | Stefan Hajnoczi | state->ops->clean(state); |
1147 | ba0c86a3 | Wenchao Xia | } |
1148 | ba5d6ab6 | Stefan Hajnoczi | g_free(state); |
1149 | 8802d1fd | Jeff Cody | } |
1150 | 8802d1fd | Jeff Cody | } |
1151 | 8802d1fd | Jeff Cody | |
1152 | 8802d1fd | Jeff Cody | |
1153 | 92d48558 | Luiz Capitulino | static void eject_device(BlockDriverState *bs, int force, Error **errp) |
1154 | 666daa68 | Markus Armbruster | { |
1155 | 2d3735d3 | Stefan Hajnoczi | if (bdrv_in_use(bs)) {
|
1156 | 2d3735d3 | Stefan Hajnoczi | error_set(errp, QERR_DEVICE_IN_USE, bdrv_get_device_name(bs)); |
1157 | 2d3735d3 | Stefan Hajnoczi | return;
|
1158 | 2d3735d3 | Stefan Hajnoczi | } |
1159 | 2c6942fa | Markus Armbruster | if (!bdrv_dev_has_removable_media(bs)) {
|
1160 | 92d48558 | Luiz Capitulino | error_set(errp, QERR_DEVICE_NOT_REMOVABLE, bdrv_get_device_name(bs)); |
1161 | 92d48558 | Luiz Capitulino | return;
|
1162 | ea8f942f | Markus Armbruster | } |
1163 | 92d48558 | Luiz Capitulino | |
1164 | 025ccaa7 | Paolo Bonzini | if (bdrv_dev_is_medium_locked(bs) && !bdrv_dev_is_tray_open(bs)) {
|
1165 | 025ccaa7 | Paolo Bonzini | bdrv_dev_eject_request(bs, force); |
1166 | 025ccaa7 | Paolo Bonzini | if (!force) {
|
1167 | 92d48558 | Luiz Capitulino | error_set(errp, QERR_DEVICE_LOCKED, bdrv_get_device_name(bs)); |
1168 | 92d48558 | Luiz Capitulino | return;
|
1169 | 025ccaa7 | Paolo Bonzini | } |
1170 | 666daa68 | Markus Armbruster | } |
1171 | 92d48558 | Luiz Capitulino | |
1172 | 3b5276b5 | Eduardo Habkost | bdrv_close(bs); |
1173 | 666daa68 | Markus Armbruster | } |
1174 | 666daa68 | Markus Armbruster | |
1175 | c245b6a3 | Luiz Capitulino | void qmp_eject(const char *device, bool has_force, bool force, Error **errp) |
1176 | 666daa68 | Markus Armbruster | { |
1177 | 666daa68 | Markus Armbruster | BlockDriverState *bs; |
1178 | 666daa68 | Markus Armbruster | |
1179 | c245b6a3 | Luiz Capitulino | bs = bdrv_find(device); |
1180 | 666daa68 | Markus Armbruster | if (!bs) {
|
1181 | c245b6a3 | Luiz Capitulino | error_set(errp, QERR_DEVICE_NOT_FOUND, device); |
1182 | c245b6a3 | Luiz Capitulino | return;
|
1183 | 92d48558 | Luiz Capitulino | } |
1184 | 92d48558 | Luiz Capitulino | |
1185 | c245b6a3 | Luiz Capitulino | eject_device(bs, force, errp); |
1186 | 666daa68 | Markus Armbruster | } |
1187 | 666daa68 | Markus Armbruster | |
1188 | a4dea8a9 | Luiz Capitulino | void qmp_block_passwd(const char *device, const char *password, Error **errp) |
1189 | 666daa68 | Markus Armbruster | { |
1190 | 666daa68 | Markus Armbruster | BlockDriverState *bs; |
1191 | 666daa68 | Markus Armbruster | int err;
|
1192 | 666daa68 | Markus Armbruster | |
1193 | a4dea8a9 | Luiz Capitulino | bs = bdrv_find(device); |
1194 | 666daa68 | Markus Armbruster | if (!bs) {
|
1195 | a4dea8a9 | Luiz Capitulino | error_set(errp, QERR_DEVICE_NOT_FOUND, device); |
1196 | a4dea8a9 | Luiz Capitulino | return;
|
1197 | 666daa68 | Markus Armbruster | } |
1198 | 666daa68 | Markus Armbruster | |
1199 | a4dea8a9 | Luiz Capitulino | err = bdrv_set_key(bs, password); |
1200 | 666daa68 | Markus Armbruster | if (err == -EINVAL) {
|
1201 | a4dea8a9 | Luiz Capitulino | error_set(errp, QERR_DEVICE_NOT_ENCRYPTED, bdrv_get_device_name(bs)); |
1202 | a4dea8a9 | Luiz Capitulino | return;
|
1203 | 666daa68 | Markus Armbruster | } else if (err < 0) { |
1204 | a4dea8a9 | Luiz Capitulino | error_set(errp, QERR_INVALID_PASSWORD); |
1205 | a4dea8a9 | Luiz Capitulino | return;
|
1206 | 666daa68 | Markus Armbruster | } |
1207 | 666daa68 | Markus Armbruster | } |
1208 | 666daa68 | Markus Armbruster | |
1209 | 333a96ec | Luiz Capitulino | static void qmp_bdrv_open_encrypted(BlockDriverState *bs, const char *filename, |
1210 | 333a96ec | Luiz Capitulino | int bdrv_flags, BlockDriver *drv,
|
1211 | 333a96ec | Luiz Capitulino | const char *password, Error **errp) |
1212 | 333a96ec | Luiz Capitulino | { |
1213 | 0eef407c | Luiz Capitulino | int ret;
|
1214 | 0eef407c | Luiz Capitulino | |
1215 | 0eef407c | Luiz Capitulino | ret = bdrv_open(bs, filename, NULL, bdrv_flags, drv);
|
1216 | 0eef407c | Luiz Capitulino | if (ret < 0) { |
1217 | 0eef407c | Luiz Capitulino | error_setg_file_open(errp, -ret, filename); |
1218 | 333a96ec | Luiz Capitulino | return;
|
1219 | 333a96ec | Luiz Capitulino | } |
1220 | 333a96ec | Luiz Capitulino | |
1221 | 333a96ec | Luiz Capitulino | if (bdrv_key_required(bs)) {
|
1222 | 333a96ec | Luiz Capitulino | if (password) {
|
1223 | 333a96ec | Luiz Capitulino | if (bdrv_set_key(bs, password) < 0) { |
1224 | 333a96ec | Luiz Capitulino | error_set(errp, QERR_INVALID_PASSWORD); |
1225 | 333a96ec | Luiz Capitulino | } |
1226 | 333a96ec | Luiz Capitulino | } else {
|
1227 | 333a96ec | Luiz Capitulino | error_set(errp, QERR_DEVICE_ENCRYPTED, bdrv_get_device_name(bs), |
1228 | 333a96ec | Luiz Capitulino | bdrv_get_encrypted_filename(bs)); |
1229 | 333a96ec | Luiz Capitulino | } |
1230 | 333a96ec | Luiz Capitulino | } else if (password) { |
1231 | 333a96ec | Luiz Capitulino | error_set(errp, QERR_DEVICE_NOT_ENCRYPTED, bdrv_get_device_name(bs)); |
1232 | 333a96ec | Luiz Capitulino | } |
1233 | 333a96ec | Luiz Capitulino | } |
1234 | 333a96ec | Luiz Capitulino | |
1235 | 333a96ec | Luiz Capitulino | void qmp_change_blockdev(const char *device, const char *filename, |
1236 | 333a96ec | Luiz Capitulino | bool has_format, const char *format, Error **errp) |
1237 | 666daa68 | Markus Armbruster | { |
1238 | 666daa68 | Markus Armbruster | BlockDriverState *bs; |
1239 | 666daa68 | Markus Armbruster | BlockDriver *drv = NULL;
|
1240 | 666daa68 | Markus Armbruster | int bdrv_flags;
|
1241 | 92d48558 | Luiz Capitulino | Error *err = NULL;
|
1242 | 666daa68 | Markus Armbruster | |
1243 | 666daa68 | Markus Armbruster | bs = bdrv_find(device); |
1244 | 666daa68 | Markus Armbruster | if (!bs) {
|
1245 | 333a96ec | Luiz Capitulino | error_set(errp, QERR_DEVICE_NOT_FOUND, device); |
1246 | 333a96ec | Luiz Capitulino | return;
|
1247 | 666daa68 | Markus Armbruster | } |
1248 | 333a96ec | Luiz Capitulino | |
1249 | 333a96ec | Luiz Capitulino | if (format) {
|
1250 | b64ec4e4 | Fam Zheng | drv = bdrv_find_whitelisted_format(format, bs->read_only); |
1251 | 666daa68 | Markus Armbruster | if (!drv) {
|
1252 | 333a96ec | Luiz Capitulino | error_set(errp, QERR_INVALID_BLOCK_FORMAT, format); |
1253 | 333a96ec | Luiz Capitulino | return;
|
1254 | 666daa68 | Markus Armbruster | } |
1255 | 666daa68 | Markus Armbruster | } |
1256 | 333a96ec | Luiz Capitulino | |
1257 | 92d48558 | Luiz Capitulino | eject_device(bs, 0, &err);
|
1258 | 92d48558 | Luiz Capitulino | if (error_is_set(&err)) {
|
1259 | 333a96ec | Luiz Capitulino | error_propagate(errp, err); |
1260 | 333a96ec | Luiz Capitulino | return;
|
1261 | 666daa68 | Markus Armbruster | } |
1262 | 333a96ec | Luiz Capitulino | |
1263 | 528f7663 | Markus Armbruster | bdrv_flags = bdrv_is_read_only(bs) ? 0 : BDRV_O_RDWR;
|
1264 | 199630b6 | Blue Swirl | bdrv_flags |= bdrv_is_snapshot(bs) ? BDRV_O_SNAPSHOT : 0;
|
1265 | 333a96ec | Luiz Capitulino | |
1266 | 333a96ec | Luiz Capitulino | qmp_bdrv_open_encrypted(bs, filename, bdrv_flags, drv, NULL, errp);
|
1267 | 666daa68 | Markus Armbruster | } |
1268 | 9063f814 | Ryan Harper | |
1269 | 727f005e | Zhi Yong Wu | /* throttling disk I/O limits */
|
1270 | 80047da5 | Luiz Capitulino | void qmp_block_set_io_throttle(const char *device, int64_t bps, int64_t bps_rd, |
1271 | 80047da5 | Luiz Capitulino | int64_t bps_wr, int64_t iops, int64_t iops_rd, |
1272 | 80047da5 | Luiz Capitulino | int64_t iops_wr, Error **errp) |
1273 | 727f005e | Zhi Yong Wu | { |
1274 | 727f005e | Zhi Yong Wu | BlockIOLimit io_limits; |
1275 | 727f005e | Zhi Yong Wu | BlockDriverState *bs; |
1276 | 727f005e | Zhi Yong Wu | |
1277 | 80047da5 | Luiz Capitulino | bs = bdrv_find(device); |
1278 | 727f005e | Zhi Yong Wu | if (!bs) {
|
1279 | 80047da5 | Luiz Capitulino | error_set(errp, QERR_DEVICE_NOT_FOUND, device); |
1280 | 80047da5 | Luiz Capitulino | return;
|
1281 | 727f005e | Zhi Yong Wu | } |
1282 | 727f005e | Zhi Yong Wu | |
1283 | 80047da5 | Luiz Capitulino | io_limits.bps[BLOCK_IO_LIMIT_TOTAL] = bps; |
1284 | 80047da5 | Luiz Capitulino | io_limits.bps[BLOCK_IO_LIMIT_READ] = bps_rd; |
1285 | 80047da5 | Luiz Capitulino | io_limits.bps[BLOCK_IO_LIMIT_WRITE] = bps_wr; |
1286 | 80047da5 | Luiz Capitulino | io_limits.iops[BLOCK_IO_LIMIT_TOTAL]= iops; |
1287 | 80047da5 | Luiz Capitulino | io_limits.iops[BLOCK_IO_LIMIT_READ] = iops_rd; |
1288 | 80047da5 | Luiz Capitulino | io_limits.iops[BLOCK_IO_LIMIT_WRITE]= iops_wr; |
1289 | 727f005e | Zhi Yong Wu | |
1290 | c546194f | Stefan Hajnoczi | if (!do_check_io_limits(&io_limits, errp)) {
|
1291 | 80047da5 | Luiz Capitulino | return;
|
1292 | 727f005e | Zhi Yong Wu | } |
1293 | 727f005e | Zhi Yong Wu | |
1294 | 727f005e | Zhi Yong Wu | bs->io_limits = io_limits; |
1295 | 727f005e | Zhi Yong Wu | |
1296 | 727f005e | Zhi Yong Wu | if (!bs->io_limits_enabled && bdrv_io_limits_enabled(bs)) {
|
1297 | 727f005e | Zhi Yong Wu | bdrv_io_limits_enable(bs); |
1298 | 727f005e | Zhi Yong Wu | } else if (bs->io_limits_enabled && !bdrv_io_limits_enabled(bs)) { |
1299 | 727f005e | Zhi Yong Wu | bdrv_io_limits_disable(bs); |
1300 | 727f005e | Zhi Yong Wu | } else {
|
1301 | 727f005e | Zhi Yong Wu | if (bs->block_timer) {
|
1302 | bc72ad67 | Alex Bligh | timer_mod(bs->block_timer, qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL)); |
1303 | 727f005e | Zhi Yong Wu | } |
1304 | 727f005e | Zhi Yong Wu | } |
1305 | 727f005e | Zhi Yong Wu | } |
1306 | 727f005e | Zhi Yong Wu | |
1307 | 9063f814 | Ryan Harper | int do_drive_del(Monitor *mon, const QDict *qdict, QObject **ret_data) |
1308 | 9063f814 | Ryan Harper | { |
1309 | 9063f814 | Ryan Harper | const char *id = qdict_get_str(qdict, "id"); |
1310 | 9063f814 | Ryan Harper | BlockDriverState *bs; |
1311 | 9063f814 | Ryan Harper | |
1312 | 9063f814 | Ryan Harper | bs = bdrv_find(id); |
1313 | 9063f814 | Ryan Harper | if (!bs) {
|
1314 | 9063f814 | Ryan Harper | qerror_report(QERR_DEVICE_NOT_FOUND, id); |
1315 | 9063f814 | Ryan Harper | return -1; |
1316 | 9063f814 | Ryan Harper | } |
1317 | 8591675f | Marcelo Tosatti | if (bdrv_in_use(bs)) {
|
1318 | 8591675f | Marcelo Tosatti | qerror_report(QERR_DEVICE_IN_USE, id); |
1319 | 8591675f | Marcelo Tosatti | return -1; |
1320 | 8591675f | Marcelo Tosatti | } |
1321 | 9063f814 | Ryan Harper | |
1322 | 9063f814 | Ryan Harper | /* quiesce block driver; prevent further io */
|
1323 | 922453bc | Stefan Hajnoczi | bdrv_drain_all(); |
1324 | 9063f814 | Ryan Harper | bdrv_flush(bs); |
1325 | 9063f814 | Ryan Harper | bdrv_close(bs); |
1326 | 9063f814 | Ryan Harper | |
1327 | fa879d62 | Markus Armbruster | /* if we have a device attached to this BlockDriverState
|
1328 | d22b2f41 | Ryan Harper | * then we need to make the drive anonymous until the device
|
1329 | d22b2f41 | Ryan Harper | * can be removed. If this is a drive with no device backing
|
1330 | d22b2f41 | Ryan Harper | * then we can just get rid of the block driver state right here.
|
1331 | d22b2f41 | Ryan Harper | */
|
1332 | fa879d62 | Markus Armbruster | if (bdrv_get_attached_dev(bs)) {
|
1333 | d22b2f41 | Ryan Harper | bdrv_make_anon(bs); |
1334 | 293c51a6 | Stefan Hajnoczi | |
1335 | 293c51a6 | Stefan Hajnoczi | /* Further I/O must not pause the guest */
|
1336 | 293c51a6 | Stefan Hajnoczi | bdrv_set_on_error(bs, BLOCKDEV_ON_ERROR_REPORT, |
1337 | 293c51a6 | Stefan Hajnoczi | BLOCKDEV_ON_ERROR_REPORT); |
1338 | d22b2f41 | Ryan Harper | } else {
|
1339 | d22b2f41 | Ryan Harper | drive_uninit(drive_get_by_blockdev(bs)); |
1340 | 9063f814 | Ryan Harper | } |
1341 | 9063f814 | Ryan Harper | |
1342 | 9063f814 | Ryan Harper | return 0; |
1343 | 9063f814 | Ryan Harper | } |
1344 | 6d4a2b3a | Christoph Hellwig | |
1345 | 5e7caacb | Luiz Capitulino | void qmp_block_resize(const char *device, int64_t size, Error **errp) |
1346 | 6d4a2b3a | Christoph Hellwig | { |
1347 | 6d4a2b3a | Christoph Hellwig | BlockDriverState *bs; |
1348 | 8732901e | Kevin Wolf | int ret;
|
1349 | 6d4a2b3a | Christoph Hellwig | |
1350 | 6d4a2b3a | Christoph Hellwig | bs = bdrv_find(device); |
1351 | 6d4a2b3a | Christoph Hellwig | if (!bs) {
|
1352 | 5e7caacb | Luiz Capitulino | error_set(errp, QERR_DEVICE_NOT_FOUND, device); |
1353 | 5e7caacb | Luiz Capitulino | return;
|
1354 | 6d4a2b3a | Christoph Hellwig | } |
1355 | 6d4a2b3a | Christoph Hellwig | |
1356 | 6d4a2b3a | Christoph Hellwig | if (size < 0) { |
1357 | 939a1cc3 | Stefan Hajnoczi | error_set(errp, QERR_INVALID_PARAMETER_VALUE, "size", "a >0 size"); |
1358 | 5e7caacb | Luiz Capitulino | return;
|
1359 | 6d4a2b3a | Christoph Hellwig | } |
1360 | 6d4a2b3a | Christoph Hellwig | |
1361 | 92b7a08d | Peter Lieven | /* complete all in-flight operations before resizing the device */
|
1362 | 92b7a08d | Peter Lieven | bdrv_drain_all(); |
1363 | 92b7a08d | Peter Lieven | |
1364 | 8732901e | Kevin Wolf | ret = bdrv_truncate(bs, size); |
1365 | 8732901e | Kevin Wolf | switch (ret) {
|
1366 | 939a1cc3 | Stefan Hajnoczi | case 0: |
1367 | 939a1cc3 | Stefan Hajnoczi | break;
|
1368 | 939a1cc3 | Stefan Hajnoczi | case -ENOMEDIUM:
|
1369 | 939a1cc3 | Stefan Hajnoczi | error_set(errp, QERR_DEVICE_HAS_NO_MEDIUM, device); |
1370 | 939a1cc3 | Stefan Hajnoczi | break;
|
1371 | 939a1cc3 | Stefan Hajnoczi | case -ENOTSUP:
|
1372 | 939a1cc3 | Stefan Hajnoczi | error_set(errp, QERR_UNSUPPORTED); |
1373 | 939a1cc3 | Stefan Hajnoczi | break;
|
1374 | 939a1cc3 | Stefan Hajnoczi | case -EACCES:
|
1375 | 939a1cc3 | Stefan Hajnoczi | error_set(errp, QERR_DEVICE_IS_READ_ONLY, device); |
1376 | 939a1cc3 | Stefan Hajnoczi | break;
|
1377 | 939a1cc3 | Stefan Hajnoczi | case -EBUSY:
|
1378 | 939a1cc3 | Stefan Hajnoczi | error_set(errp, QERR_DEVICE_IN_USE, device); |
1379 | 939a1cc3 | Stefan Hajnoczi | break;
|
1380 | 939a1cc3 | Stefan Hajnoczi | default:
|
1381 | 8732901e | Kevin Wolf | error_setg_errno(errp, -ret, "Could not resize");
|
1382 | 939a1cc3 | Stefan Hajnoczi | break;
|
1383 | 6d4a2b3a | Christoph Hellwig | } |
1384 | 6d4a2b3a | Christoph Hellwig | } |
1385 | 12bd451f | Stefan Hajnoczi | |
1386 | 9abf2dba | Jeff Cody | static void block_job_cb(void *opaque, int ret) |
1387 | 12bd451f | Stefan Hajnoczi | { |
1388 | 12bd451f | Stefan Hajnoczi | BlockDriverState *bs = opaque; |
1389 | 12bd451f | Stefan Hajnoczi | QObject *obj; |
1390 | 12bd451f | Stefan Hajnoczi | |
1391 | 9abf2dba | Jeff Cody | trace_block_job_cb(bs, bs->job, ret); |
1392 | 12bd451f | Stefan Hajnoczi | |
1393 | 12bd451f | Stefan Hajnoczi | assert(bs->job); |
1394 | 12bd451f | Stefan Hajnoczi | obj = qobject_from_block_job(bs->job); |
1395 | 12bd451f | Stefan Hajnoczi | if (ret < 0) { |
1396 | 12bd451f | Stefan Hajnoczi | QDict *dict = qobject_to_qdict(obj); |
1397 | 12bd451f | Stefan Hajnoczi | qdict_put(dict, "error", qstring_from_str(strerror(-ret)));
|
1398 | 12bd451f | Stefan Hajnoczi | } |
1399 | 12bd451f | Stefan Hajnoczi | |
1400 | 370521a1 | Stefan Hajnoczi | if (block_job_is_cancelled(bs->job)) {
|
1401 | 370521a1 | Stefan Hajnoczi | monitor_protocol_event(QEVENT_BLOCK_JOB_CANCELLED, obj); |
1402 | 370521a1 | Stefan Hajnoczi | } else {
|
1403 | 370521a1 | Stefan Hajnoczi | monitor_protocol_event(QEVENT_BLOCK_JOB_COMPLETED, obj); |
1404 | 370521a1 | Stefan Hajnoczi | } |
1405 | 12bd451f | Stefan Hajnoczi | qobject_decref(obj); |
1406 | aa398a5c | Stefan Hajnoczi | |
1407 | aa398a5c | Stefan Hajnoczi | drive_put_ref_bh_schedule(drive_get_by_blockdev(bs)); |
1408 | 12bd451f | Stefan Hajnoczi | } |
1409 | 12bd451f | Stefan Hajnoczi | |
1410 | 12bd451f | Stefan Hajnoczi | void qmp_block_stream(const char *device, bool has_base, |
1411 | 1d809098 | Paolo Bonzini | const char *base, bool has_speed, int64_t speed, |
1412 | 1d809098 | Paolo Bonzini | bool has_on_error, BlockdevOnError on_error,
|
1413 | 1d809098 | Paolo Bonzini | Error **errp) |
1414 | 12bd451f | Stefan Hajnoczi | { |
1415 | 12bd451f | Stefan Hajnoczi | BlockDriverState *bs; |
1416 | c8c3080f | Marcelo Tosatti | BlockDriverState *base_bs = NULL;
|
1417 | fd7f8c65 | Stefan Hajnoczi | Error *local_err = NULL;
|
1418 | 12bd451f | Stefan Hajnoczi | |
1419 | 1d809098 | Paolo Bonzini | if (!has_on_error) {
|
1420 | 1d809098 | Paolo Bonzini | on_error = BLOCKDEV_ON_ERROR_REPORT; |
1421 | 1d809098 | Paolo Bonzini | } |
1422 | 1d809098 | Paolo Bonzini | |
1423 | 12bd451f | Stefan Hajnoczi | bs = bdrv_find(device); |
1424 | 12bd451f | Stefan Hajnoczi | if (!bs) {
|
1425 | 12bd451f | Stefan Hajnoczi | error_set(errp, QERR_DEVICE_NOT_FOUND, device); |
1426 | 12bd451f | Stefan Hajnoczi | return;
|
1427 | 12bd451f | Stefan Hajnoczi | } |
1428 | 12bd451f | Stefan Hajnoczi | |
1429 | 12bd451f | Stefan Hajnoczi | if (base) {
|
1430 | c8c3080f | Marcelo Tosatti | base_bs = bdrv_find_backing_image(bs, base); |
1431 | c8c3080f | Marcelo Tosatti | if (base_bs == NULL) { |
1432 | c8c3080f | Marcelo Tosatti | error_set(errp, QERR_BASE_NOT_FOUND, base); |
1433 | c8c3080f | Marcelo Tosatti | return;
|
1434 | c8c3080f | Marcelo Tosatti | } |
1435 | 12bd451f | Stefan Hajnoczi | } |
1436 | 12bd451f | Stefan Hajnoczi | |
1437 | c83c66c3 | Stefan Hajnoczi | stream_start(bs, base_bs, base, has_speed ? speed : 0,
|
1438 | 1d809098 | Paolo Bonzini | on_error, block_job_cb, bs, &local_err); |
1439 | fd7f8c65 | Stefan Hajnoczi | if (error_is_set(&local_err)) {
|
1440 | fd7f8c65 | Stefan Hajnoczi | error_propagate(errp, local_err); |
1441 | fd7f8c65 | Stefan Hajnoczi | return;
|
1442 | 12bd451f | Stefan Hajnoczi | } |
1443 | 12bd451f | Stefan Hajnoczi | |
1444 | aa398a5c | Stefan Hajnoczi | /* Grab a reference so hotplug does not delete the BlockDriverState from
|
1445 | aa398a5c | Stefan Hajnoczi | * underneath us.
|
1446 | aa398a5c | Stefan Hajnoczi | */
|
1447 | aa398a5c | Stefan Hajnoczi | drive_get_ref(drive_get_by_blockdev(bs)); |
1448 | aa398a5c | Stefan Hajnoczi | |
1449 | 12bd451f | Stefan Hajnoczi | trace_qmp_block_stream(bs, bs->job); |
1450 | 12bd451f | Stefan Hajnoczi | } |
1451 | 2d47c6e9 | Stefan Hajnoczi | |
1452 | ed61fc10 | Jeff Cody | void qmp_block_commit(const char *device, |
1453 | ed61fc10 | Jeff Cody | bool has_base, const char *base, const char *top, |
1454 | ed61fc10 | Jeff Cody | bool has_speed, int64_t speed,
|
1455 | ed61fc10 | Jeff Cody | Error **errp) |
1456 | ed61fc10 | Jeff Cody | { |
1457 | ed61fc10 | Jeff Cody | BlockDriverState *bs; |
1458 | ed61fc10 | Jeff Cody | BlockDriverState *base_bs, *top_bs; |
1459 | ed61fc10 | Jeff Cody | Error *local_err = NULL;
|
1460 | ed61fc10 | Jeff Cody | /* This will be part of the QMP command, if/when the
|
1461 | ed61fc10 | Jeff Cody | * BlockdevOnError change for blkmirror makes it in
|
1462 | ed61fc10 | Jeff Cody | */
|
1463 | 92aa5c6d | Paolo Bonzini | BlockdevOnError on_error = BLOCKDEV_ON_ERROR_REPORT; |
1464 | ed61fc10 | Jeff Cody | |
1465 | ed61fc10 | Jeff Cody | /* drain all i/o before commits */
|
1466 | ed61fc10 | Jeff Cody | bdrv_drain_all(); |
1467 | ed61fc10 | Jeff Cody | |
1468 | ed61fc10 | Jeff Cody | bs = bdrv_find(device); |
1469 | ed61fc10 | Jeff Cody | if (!bs) {
|
1470 | ed61fc10 | Jeff Cody | error_set(errp, QERR_DEVICE_NOT_FOUND, device); |
1471 | ed61fc10 | Jeff Cody | return;
|
1472 | ed61fc10 | Jeff Cody | } |
1473 | ed61fc10 | Jeff Cody | |
1474 | ed61fc10 | Jeff Cody | /* default top_bs is the active layer */
|
1475 | ed61fc10 | Jeff Cody | top_bs = bs; |
1476 | ed61fc10 | Jeff Cody | |
1477 | ed61fc10 | Jeff Cody | if (top) {
|
1478 | ed61fc10 | Jeff Cody | if (strcmp(bs->filename, top) != 0) { |
1479 | ed61fc10 | Jeff Cody | top_bs = bdrv_find_backing_image(bs, top); |
1480 | ed61fc10 | Jeff Cody | } |
1481 | ed61fc10 | Jeff Cody | } |
1482 | ed61fc10 | Jeff Cody | |
1483 | ed61fc10 | Jeff Cody | if (top_bs == NULL) { |
1484 | ed61fc10 | Jeff Cody | error_setg(errp, "Top image file %s not found", top ? top : "NULL"); |
1485 | ed61fc10 | Jeff Cody | return;
|
1486 | ed61fc10 | Jeff Cody | } |
1487 | ed61fc10 | Jeff Cody | |
1488 | d5208c45 | Jeff Cody | if (has_base && base) {
|
1489 | d5208c45 | Jeff Cody | base_bs = bdrv_find_backing_image(top_bs, base); |
1490 | d5208c45 | Jeff Cody | } else {
|
1491 | d5208c45 | Jeff Cody | base_bs = bdrv_find_base(top_bs); |
1492 | d5208c45 | Jeff Cody | } |
1493 | d5208c45 | Jeff Cody | |
1494 | d5208c45 | Jeff Cody | if (base_bs == NULL) { |
1495 | d5208c45 | Jeff Cody | error_set(errp, QERR_BASE_NOT_FOUND, base ? base : "NULL");
|
1496 | d5208c45 | Jeff Cody | return;
|
1497 | d5208c45 | Jeff Cody | } |
1498 | d5208c45 | Jeff Cody | |
1499 | ed61fc10 | Jeff Cody | commit_start(bs, base_bs, top_bs, speed, on_error, block_job_cb, bs, |
1500 | ed61fc10 | Jeff Cody | &local_err); |
1501 | ed61fc10 | Jeff Cody | if (local_err != NULL) { |
1502 | ed61fc10 | Jeff Cody | error_propagate(errp, local_err); |
1503 | ed61fc10 | Jeff Cody | return;
|
1504 | ed61fc10 | Jeff Cody | } |
1505 | ed61fc10 | Jeff Cody | /* Grab a reference so hotplug does not delete the BlockDriverState from
|
1506 | ed61fc10 | Jeff Cody | * underneath us.
|
1507 | ed61fc10 | Jeff Cody | */
|
1508 | ed61fc10 | Jeff Cody | drive_get_ref(drive_get_by_blockdev(bs)); |
1509 | ed61fc10 | Jeff Cody | } |
1510 | ed61fc10 | Jeff Cody | |
1511 | 99a9addf | Stefan Hajnoczi | void qmp_drive_backup(const char *device, const char *target, |
1512 | 99a9addf | Stefan Hajnoczi | bool has_format, const char *format, |
1513 | b53169ea | Stefan Hajnoczi | enum MirrorSyncMode sync,
|
1514 | 99a9addf | Stefan Hajnoczi | bool has_mode, enum NewImageMode mode, |
1515 | 99a9addf | Stefan Hajnoczi | bool has_speed, int64_t speed,
|
1516 | 99a9addf | Stefan Hajnoczi | bool has_on_source_error, BlockdevOnError on_source_error,
|
1517 | 99a9addf | Stefan Hajnoczi | bool has_on_target_error, BlockdevOnError on_target_error,
|
1518 | 99a9addf | Stefan Hajnoczi | Error **errp) |
1519 | 99a9addf | Stefan Hajnoczi | { |
1520 | 99a9addf | Stefan Hajnoczi | BlockDriverState *bs; |
1521 | 99a9addf | Stefan Hajnoczi | BlockDriverState *target_bs; |
1522 | fc5d3f84 | Ian Main | BlockDriverState *source = NULL;
|
1523 | 99a9addf | Stefan Hajnoczi | BlockDriver *drv = NULL;
|
1524 | 99a9addf | Stefan Hajnoczi | Error *local_err = NULL;
|
1525 | 99a9addf | Stefan Hajnoczi | int flags;
|
1526 | 99a9addf | Stefan Hajnoczi | int64_t size; |
1527 | 99a9addf | Stefan Hajnoczi | int ret;
|
1528 | 99a9addf | Stefan Hajnoczi | |
1529 | 99a9addf | Stefan Hajnoczi | if (!has_speed) {
|
1530 | 99a9addf | Stefan Hajnoczi | speed = 0;
|
1531 | 99a9addf | Stefan Hajnoczi | } |
1532 | 99a9addf | Stefan Hajnoczi | if (!has_on_source_error) {
|
1533 | 99a9addf | Stefan Hajnoczi | on_source_error = BLOCKDEV_ON_ERROR_REPORT; |
1534 | 99a9addf | Stefan Hajnoczi | } |
1535 | 99a9addf | Stefan Hajnoczi | if (!has_on_target_error) {
|
1536 | 99a9addf | Stefan Hajnoczi | on_target_error = BLOCKDEV_ON_ERROR_REPORT; |
1537 | 99a9addf | Stefan Hajnoczi | } |
1538 | 99a9addf | Stefan Hajnoczi | if (!has_mode) {
|
1539 | 99a9addf | Stefan Hajnoczi | mode = NEW_IMAGE_MODE_ABSOLUTE_PATHS; |
1540 | 99a9addf | Stefan Hajnoczi | } |
1541 | 99a9addf | Stefan Hajnoczi | |
1542 | 99a9addf | Stefan Hajnoczi | bs = bdrv_find(device); |
1543 | 99a9addf | Stefan Hajnoczi | if (!bs) {
|
1544 | 99a9addf | Stefan Hajnoczi | error_set(errp, QERR_DEVICE_NOT_FOUND, device); |
1545 | 99a9addf | Stefan Hajnoczi | return;
|
1546 | 99a9addf | Stefan Hajnoczi | } |
1547 | 99a9addf | Stefan Hajnoczi | |
1548 | 99a9addf | Stefan Hajnoczi | if (!bdrv_is_inserted(bs)) {
|
1549 | 99a9addf | Stefan Hajnoczi | error_set(errp, QERR_DEVICE_HAS_NO_MEDIUM, device); |
1550 | 99a9addf | Stefan Hajnoczi | return;
|
1551 | 99a9addf | Stefan Hajnoczi | } |
1552 | 99a9addf | Stefan Hajnoczi | |
1553 | 99a9addf | Stefan Hajnoczi | if (!has_format) {
|
1554 | 99a9addf | Stefan Hajnoczi | format = mode == NEW_IMAGE_MODE_EXISTING ? NULL : bs->drv->format_name;
|
1555 | 99a9addf | Stefan Hajnoczi | } |
1556 | 99a9addf | Stefan Hajnoczi | if (format) {
|
1557 | 99a9addf | Stefan Hajnoczi | drv = bdrv_find_format(format); |
1558 | 99a9addf | Stefan Hajnoczi | if (!drv) {
|
1559 | 99a9addf | Stefan Hajnoczi | error_set(errp, QERR_INVALID_BLOCK_FORMAT, format); |
1560 | 99a9addf | Stefan Hajnoczi | return;
|
1561 | 99a9addf | Stefan Hajnoczi | } |
1562 | 99a9addf | Stefan Hajnoczi | } |
1563 | 99a9addf | Stefan Hajnoczi | |
1564 | 99a9addf | Stefan Hajnoczi | if (bdrv_in_use(bs)) {
|
1565 | 99a9addf | Stefan Hajnoczi | error_set(errp, QERR_DEVICE_IN_USE, device); |
1566 | 99a9addf | Stefan Hajnoczi | return;
|
1567 | 99a9addf | Stefan Hajnoczi | } |
1568 | 99a9addf | Stefan Hajnoczi | |
1569 | 99a9addf | Stefan Hajnoczi | flags = bs->open_flags | BDRV_O_RDWR; |
1570 | 99a9addf | Stefan Hajnoczi | |
1571 | fc5d3f84 | Ian Main | /* See if we have a backing HD we can use to create our new image
|
1572 | fc5d3f84 | Ian Main | * on top of. */
|
1573 | fc5d3f84 | Ian Main | if (sync == MIRROR_SYNC_MODE_TOP) {
|
1574 | fc5d3f84 | Ian Main | source = bs->backing_hd; |
1575 | fc5d3f84 | Ian Main | if (!source) {
|
1576 | fc5d3f84 | Ian Main | sync = MIRROR_SYNC_MODE_FULL; |
1577 | fc5d3f84 | Ian Main | } |
1578 | fc5d3f84 | Ian Main | } |
1579 | fc5d3f84 | Ian Main | if (sync == MIRROR_SYNC_MODE_NONE) {
|
1580 | fc5d3f84 | Ian Main | source = bs; |
1581 | fc5d3f84 | Ian Main | } |
1582 | fc5d3f84 | Ian Main | |
1583 | 99a9addf | Stefan Hajnoczi | size = bdrv_getlength(bs); |
1584 | 99a9addf | Stefan Hajnoczi | if (size < 0) { |
1585 | 99a9addf | Stefan Hajnoczi | error_setg_errno(errp, -size, "bdrv_getlength failed");
|
1586 | 99a9addf | Stefan Hajnoczi | return;
|
1587 | 99a9addf | Stefan Hajnoczi | } |
1588 | 99a9addf | Stefan Hajnoczi | |
1589 | 99a9addf | Stefan Hajnoczi | if (mode != NEW_IMAGE_MODE_EXISTING) {
|
1590 | 99a9addf | Stefan Hajnoczi | assert(format && drv); |
1591 | fc5d3f84 | Ian Main | if (source) {
|
1592 | fc5d3f84 | Ian Main | bdrv_img_create(target, format, source->filename, |
1593 | fc5d3f84 | Ian Main | source->drv->format_name, NULL,
|
1594 | fc5d3f84 | Ian Main | size, flags, &local_err, false);
|
1595 | fc5d3f84 | Ian Main | } else {
|
1596 | fc5d3f84 | Ian Main | bdrv_img_create(target, format, NULL, NULL, NULL, |
1597 | fc5d3f84 | Ian Main | size, flags, &local_err, false);
|
1598 | fc5d3f84 | Ian Main | } |
1599 | 99a9addf | Stefan Hajnoczi | } |
1600 | 99a9addf | Stefan Hajnoczi | |
1601 | 99a9addf | Stefan Hajnoczi | if (error_is_set(&local_err)) {
|
1602 | 99a9addf | Stefan Hajnoczi | error_propagate(errp, local_err); |
1603 | 99a9addf | Stefan Hajnoczi | return;
|
1604 | 99a9addf | Stefan Hajnoczi | } |
1605 | 99a9addf | Stefan Hajnoczi | |
1606 | 99a9addf | Stefan Hajnoczi | target_bs = bdrv_new("");
|
1607 | 99a9addf | Stefan Hajnoczi | ret = bdrv_open(target_bs, target, NULL, flags, drv);
|
1608 | 99a9addf | Stefan Hajnoczi | if (ret < 0) { |
1609 | 99a9addf | Stefan Hajnoczi | bdrv_delete(target_bs); |
1610 | 99a9addf | Stefan Hajnoczi | error_setg_file_open(errp, -ret, target); |
1611 | 99a9addf | Stefan Hajnoczi | return;
|
1612 | 99a9addf | Stefan Hajnoczi | } |
1613 | 99a9addf | Stefan Hajnoczi | |
1614 | fc5d3f84 | Ian Main | backup_start(bs, target_bs, speed, sync, on_source_error, on_target_error, |
1615 | 99a9addf | Stefan Hajnoczi | block_job_cb, bs, &local_err); |
1616 | 99a9addf | Stefan Hajnoczi | if (local_err != NULL) { |
1617 | 99a9addf | Stefan Hajnoczi | bdrv_delete(target_bs); |
1618 | 99a9addf | Stefan Hajnoczi | error_propagate(errp, local_err); |
1619 | 99a9addf | Stefan Hajnoczi | return;
|
1620 | 99a9addf | Stefan Hajnoczi | } |
1621 | 99a9addf | Stefan Hajnoczi | |
1622 | 99a9addf | Stefan Hajnoczi | /* Grab a reference so hotplug does not delete the BlockDriverState from
|
1623 | 99a9addf | Stefan Hajnoczi | * underneath us.
|
1624 | 99a9addf | Stefan Hajnoczi | */
|
1625 | 99a9addf | Stefan Hajnoczi | drive_get_ref(drive_get_by_blockdev(bs)); |
1626 | 99a9addf | Stefan Hajnoczi | } |
1627 | 99a9addf | Stefan Hajnoczi | |
1628 | 08e4ed6c | Paolo Bonzini | #define DEFAULT_MIRROR_BUF_SIZE (10 << 20) |
1629 | 08e4ed6c | Paolo Bonzini | |
1630 | d9b902db | Paolo Bonzini | void qmp_drive_mirror(const char *device, const char *target, |
1631 | d9b902db | Paolo Bonzini | bool has_format, const char *format, |
1632 | d9b902db | Paolo Bonzini | enum MirrorSyncMode sync,
|
1633 | d9b902db | Paolo Bonzini | bool has_mode, enum NewImageMode mode, |
1634 | b952b558 | Paolo Bonzini | bool has_speed, int64_t speed,
|
1635 | eee13dfe | Paolo Bonzini | bool has_granularity, uint32_t granularity,
|
1636 | 08e4ed6c | Paolo Bonzini | bool has_buf_size, int64_t buf_size,
|
1637 | b952b558 | Paolo Bonzini | bool has_on_source_error, BlockdevOnError on_source_error,
|
1638 | b952b558 | Paolo Bonzini | bool has_on_target_error, BlockdevOnError on_target_error,
|
1639 | b952b558 | Paolo Bonzini | Error **errp) |
1640 | d9b902db | Paolo Bonzini | { |
1641 | d9b902db | Paolo Bonzini | BlockDriverState *bs; |
1642 | d9b902db | Paolo Bonzini | BlockDriverState *source, *target_bs; |
1643 | d9b902db | Paolo Bonzini | BlockDriver *drv = NULL;
|
1644 | d9b902db | Paolo Bonzini | Error *local_err = NULL;
|
1645 | d9b902db | Paolo Bonzini | int flags;
|
1646 | ac3c5d83 | Stefan Hajnoczi | int64_t size; |
1647 | d9b902db | Paolo Bonzini | int ret;
|
1648 | d9b902db | Paolo Bonzini | |
1649 | d9b902db | Paolo Bonzini | if (!has_speed) {
|
1650 | d9b902db | Paolo Bonzini | speed = 0;
|
1651 | d9b902db | Paolo Bonzini | } |
1652 | b952b558 | Paolo Bonzini | if (!has_on_source_error) {
|
1653 | b952b558 | Paolo Bonzini | on_source_error = BLOCKDEV_ON_ERROR_REPORT; |
1654 | b952b558 | Paolo Bonzini | } |
1655 | b952b558 | Paolo Bonzini | if (!has_on_target_error) {
|
1656 | b952b558 | Paolo Bonzini | on_target_error = BLOCKDEV_ON_ERROR_REPORT; |
1657 | b952b558 | Paolo Bonzini | } |
1658 | d9b902db | Paolo Bonzini | if (!has_mode) {
|
1659 | d9b902db | Paolo Bonzini | mode = NEW_IMAGE_MODE_ABSOLUTE_PATHS; |
1660 | d9b902db | Paolo Bonzini | } |
1661 | eee13dfe | Paolo Bonzini | if (!has_granularity) {
|
1662 | eee13dfe | Paolo Bonzini | granularity = 0;
|
1663 | eee13dfe | Paolo Bonzini | } |
1664 | 08e4ed6c | Paolo Bonzini | if (!has_buf_size) {
|
1665 | 08e4ed6c | Paolo Bonzini | buf_size = DEFAULT_MIRROR_BUF_SIZE; |
1666 | 08e4ed6c | Paolo Bonzini | } |
1667 | 08e4ed6c | Paolo Bonzini | |
1668 | eee13dfe | Paolo Bonzini | if (granularity != 0 && (granularity < 512 || granularity > 1048576 * 64)) { |
1669 | eee13dfe | Paolo Bonzini | error_set(errp, QERR_INVALID_PARAMETER, device); |
1670 | eee13dfe | Paolo Bonzini | return;
|
1671 | eee13dfe | Paolo Bonzini | } |
1672 | eee13dfe | Paolo Bonzini | if (granularity & (granularity - 1)) { |
1673 | eee13dfe | Paolo Bonzini | error_set(errp, QERR_INVALID_PARAMETER, device); |
1674 | eee13dfe | Paolo Bonzini | return;
|
1675 | eee13dfe | Paolo Bonzini | } |
1676 | d9b902db | Paolo Bonzini | |
1677 | d9b902db | Paolo Bonzini | bs = bdrv_find(device); |
1678 | d9b902db | Paolo Bonzini | if (!bs) {
|
1679 | d9b902db | Paolo Bonzini | error_set(errp, QERR_DEVICE_NOT_FOUND, device); |
1680 | d9b902db | Paolo Bonzini | return;
|
1681 | d9b902db | Paolo Bonzini | } |
1682 | d9b902db | Paolo Bonzini | |
1683 | d9b902db | Paolo Bonzini | if (!bdrv_is_inserted(bs)) {
|
1684 | d9b902db | Paolo Bonzini | error_set(errp, QERR_DEVICE_HAS_NO_MEDIUM, device); |
1685 | d9b902db | Paolo Bonzini | return;
|
1686 | d9b902db | Paolo Bonzini | } |
1687 | d9b902db | Paolo Bonzini | |
1688 | d9b902db | Paolo Bonzini | if (!has_format) {
|
1689 | d9b902db | Paolo Bonzini | format = mode == NEW_IMAGE_MODE_EXISTING ? NULL : bs->drv->format_name;
|
1690 | d9b902db | Paolo Bonzini | } |
1691 | d9b902db | Paolo Bonzini | if (format) {
|
1692 | d9b902db | Paolo Bonzini | drv = bdrv_find_format(format); |
1693 | d9b902db | Paolo Bonzini | if (!drv) {
|
1694 | d9b902db | Paolo Bonzini | error_set(errp, QERR_INVALID_BLOCK_FORMAT, format); |
1695 | d9b902db | Paolo Bonzini | return;
|
1696 | d9b902db | Paolo Bonzini | } |
1697 | d9b902db | Paolo Bonzini | } |
1698 | d9b902db | Paolo Bonzini | |
1699 | d9b902db | Paolo Bonzini | if (bdrv_in_use(bs)) {
|
1700 | d9b902db | Paolo Bonzini | error_set(errp, QERR_DEVICE_IN_USE, device); |
1701 | d9b902db | Paolo Bonzini | return;
|
1702 | d9b902db | Paolo Bonzini | } |
1703 | d9b902db | Paolo Bonzini | |
1704 | d9b902db | Paolo Bonzini | flags = bs->open_flags | BDRV_O_RDWR; |
1705 | d9b902db | Paolo Bonzini | source = bs->backing_hd; |
1706 | d9b902db | Paolo Bonzini | if (!source && sync == MIRROR_SYNC_MODE_TOP) {
|
1707 | d9b902db | Paolo Bonzini | sync = MIRROR_SYNC_MODE_FULL; |
1708 | d9b902db | Paolo Bonzini | } |
1709 | d9b902db | Paolo Bonzini | |
1710 | ac3c5d83 | Stefan Hajnoczi | size = bdrv_getlength(bs); |
1711 | ac3c5d83 | Stefan Hajnoczi | if (size < 0) { |
1712 | ac3c5d83 | Stefan Hajnoczi | error_setg_errno(errp, -size, "bdrv_getlength failed");
|
1713 | ac3c5d83 | Stefan Hajnoczi | return;
|
1714 | ac3c5d83 | Stefan Hajnoczi | } |
1715 | ac3c5d83 | Stefan Hajnoczi | |
1716 | d9b902db | Paolo Bonzini | if (sync == MIRROR_SYNC_MODE_FULL && mode != NEW_IMAGE_MODE_EXISTING) {
|
1717 | d9b902db | Paolo Bonzini | /* create new image w/o backing file */
|
1718 | d9b902db | Paolo Bonzini | assert(format && drv); |
1719 | cf8f2426 | Luiz Capitulino | bdrv_img_create(target, format, |
1720 | f382d43a | Miroslav Rezanina | NULL, NULL, NULL, size, flags, &local_err, false); |
1721 | d9b902db | Paolo Bonzini | } else {
|
1722 | d9b902db | Paolo Bonzini | switch (mode) {
|
1723 | d9b902db | Paolo Bonzini | case NEW_IMAGE_MODE_EXISTING:
|
1724 | d9b902db | Paolo Bonzini | ret = 0;
|
1725 | d9b902db | Paolo Bonzini | break;
|
1726 | d9b902db | Paolo Bonzini | case NEW_IMAGE_MODE_ABSOLUTE_PATHS:
|
1727 | d9b902db | Paolo Bonzini | /* create new image with backing file */
|
1728 | cf8f2426 | Luiz Capitulino | bdrv_img_create(target, format, |
1729 | cf8f2426 | Luiz Capitulino | source->filename, |
1730 | cf8f2426 | Luiz Capitulino | source->drv->format_name, |
1731 | f382d43a | Miroslav Rezanina | NULL, size, flags, &local_err, false); |
1732 | d9b902db | Paolo Bonzini | break;
|
1733 | d9b902db | Paolo Bonzini | default:
|
1734 | d9b902db | Paolo Bonzini | abort(); |
1735 | d9b902db | Paolo Bonzini | } |
1736 | d9b902db | Paolo Bonzini | } |
1737 | d9b902db | Paolo Bonzini | |
1738 | cf8f2426 | Luiz Capitulino | if (error_is_set(&local_err)) {
|
1739 | cf8f2426 | Luiz Capitulino | error_propagate(errp, local_err); |
1740 | d9b902db | Paolo Bonzini | return;
|
1741 | d9b902db | Paolo Bonzini | } |
1742 | d9b902db | Paolo Bonzini | |
1743 | b812f671 | Paolo Bonzini | /* Mirroring takes care of copy-on-write using the source's backing
|
1744 | b812f671 | Paolo Bonzini | * file.
|
1745 | b812f671 | Paolo Bonzini | */
|
1746 | d9b902db | Paolo Bonzini | target_bs = bdrv_new("");
|
1747 | de9c0cec | Kevin Wolf | ret = bdrv_open(target_bs, target, NULL, flags | BDRV_O_NO_BACKING, drv);
|
1748 | d9b902db | Paolo Bonzini | if (ret < 0) { |
1749 | d9b902db | Paolo Bonzini | bdrv_delete(target_bs); |
1750 | 0eef407c | Luiz Capitulino | error_setg_file_open(errp, -ret, target); |
1751 | d9b902db | Paolo Bonzini | return;
|
1752 | d9b902db | Paolo Bonzini | } |
1753 | d9b902db | Paolo Bonzini | |
1754 | 08e4ed6c | Paolo Bonzini | mirror_start(bs, target_bs, speed, granularity, buf_size, sync, |
1755 | eee13dfe | Paolo Bonzini | on_source_error, on_target_error, |
1756 | b952b558 | Paolo Bonzini | block_job_cb, bs, &local_err); |
1757 | d9b902db | Paolo Bonzini | if (local_err != NULL) { |
1758 | d9b902db | Paolo Bonzini | bdrv_delete(target_bs); |
1759 | d9b902db | Paolo Bonzini | error_propagate(errp, local_err); |
1760 | d9b902db | Paolo Bonzini | return;
|
1761 | d9b902db | Paolo Bonzini | } |
1762 | d9b902db | Paolo Bonzini | |
1763 | d9b902db | Paolo Bonzini | /* Grab a reference so hotplug does not delete the BlockDriverState from
|
1764 | d9b902db | Paolo Bonzini | * underneath us.
|
1765 | d9b902db | Paolo Bonzini | */
|
1766 | d9b902db | Paolo Bonzini | drive_get_ref(drive_get_by_blockdev(bs)); |
1767 | d9b902db | Paolo Bonzini | } |
1768 | d9b902db | Paolo Bonzini | |
1769 | 2d47c6e9 | Stefan Hajnoczi | static BlockJob *find_block_job(const char *device) |
1770 | 2d47c6e9 | Stefan Hajnoczi | { |
1771 | 2d47c6e9 | Stefan Hajnoczi | BlockDriverState *bs; |
1772 | 2d47c6e9 | Stefan Hajnoczi | |
1773 | 2d47c6e9 | Stefan Hajnoczi | bs = bdrv_find(device); |
1774 | 2d47c6e9 | Stefan Hajnoczi | if (!bs || !bs->job) {
|
1775 | 2d47c6e9 | Stefan Hajnoczi | return NULL; |
1776 | 2d47c6e9 | Stefan Hajnoczi | } |
1777 | 2d47c6e9 | Stefan Hajnoczi | return bs->job;
|
1778 | 2d47c6e9 | Stefan Hajnoczi | } |
1779 | 2d47c6e9 | Stefan Hajnoczi | |
1780 | 882ec7ce | Stefan Hajnoczi | void qmp_block_job_set_speed(const char *device, int64_t speed, Error **errp) |
1781 | 2d47c6e9 | Stefan Hajnoczi | { |
1782 | 2d47c6e9 | Stefan Hajnoczi | BlockJob *job = find_block_job(device); |
1783 | 2d47c6e9 | Stefan Hajnoczi | |
1784 | 2d47c6e9 | Stefan Hajnoczi | if (!job) {
|
1785 | 7ef15070 | Paolo Bonzini | error_set(errp, QERR_BLOCK_JOB_NOT_ACTIVE, device); |
1786 | 2d47c6e9 | Stefan Hajnoczi | return;
|
1787 | 2d47c6e9 | Stefan Hajnoczi | } |
1788 | 2d47c6e9 | Stefan Hajnoczi | |
1789 | 882ec7ce | Stefan Hajnoczi | block_job_set_speed(job, speed, errp); |
1790 | 2d47c6e9 | Stefan Hajnoczi | } |
1791 | 370521a1 | Stefan Hajnoczi | |
1792 | 6e37fb81 | Paolo Bonzini | void qmp_block_job_cancel(const char *device, |
1793 | 6e37fb81 | Paolo Bonzini | bool has_force, bool force, Error **errp) |
1794 | 370521a1 | Stefan Hajnoczi | { |
1795 | 370521a1 | Stefan Hajnoczi | BlockJob *job = find_block_job(device); |
1796 | 370521a1 | Stefan Hajnoczi | |
1797 | 6e37fb81 | Paolo Bonzini | if (!has_force) {
|
1798 | 6e37fb81 | Paolo Bonzini | force = false;
|
1799 | 6e37fb81 | Paolo Bonzini | } |
1800 | 6e37fb81 | Paolo Bonzini | |
1801 | 370521a1 | Stefan Hajnoczi | if (!job) {
|
1802 | 7ef15070 | Paolo Bonzini | error_set(errp, QERR_BLOCK_JOB_NOT_ACTIVE, device); |
1803 | 370521a1 | Stefan Hajnoczi | return;
|
1804 | 370521a1 | Stefan Hajnoczi | } |
1805 | 6e37fb81 | Paolo Bonzini | if (job->paused && !force) {
|
1806 | 8acc72a4 | Paolo Bonzini | error_set(errp, QERR_BLOCK_JOB_PAUSED, device); |
1807 | 8acc72a4 | Paolo Bonzini | return;
|
1808 | 8acc72a4 | Paolo Bonzini | } |
1809 | 370521a1 | Stefan Hajnoczi | |
1810 | 370521a1 | Stefan Hajnoczi | trace_qmp_block_job_cancel(job); |
1811 | 370521a1 | Stefan Hajnoczi | block_job_cancel(job); |
1812 | 370521a1 | Stefan Hajnoczi | } |
1813 | fb5458cd | Stefan Hajnoczi | |
1814 | 6e37fb81 | Paolo Bonzini | void qmp_block_job_pause(const char *device, Error **errp) |
1815 | 6e37fb81 | Paolo Bonzini | { |
1816 | 6e37fb81 | Paolo Bonzini | BlockJob *job = find_block_job(device); |
1817 | 6e37fb81 | Paolo Bonzini | |
1818 | 6e37fb81 | Paolo Bonzini | if (!job) {
|
1819 | 6e37fb81 | Paolo Bonzini | error_set(errp, QERR_BLOCK_JOB_NOT_ACTIVE, device); |
1820 | 6e37fb81 | Paolo Bonzini | return;
|
1821 | 6e37fb81 | Paolo Bonzini | } |
1822 | 6e37fb81 | Paolo Bonzini | |
1823 | 6e37fb81 | Paolo Bonzini | trace_qmp_block_job_pause(job); |
1824 | 6e37fb81 | Paolo Bonzini | block_job_pause(job); |
1825 | 6e37fb81 | Paolo Bonzini | } |
1826 | 6e37fb81 | Paolo Bonzini | |
1827 | 6e37fb81 | Paolo Bonzini | void qmp_block_job_resume(const char *device, Error **errp) |
1828 | 6e37fb81 | Paolo Bonzini | { |
1829 | 6e37fb81 | Paolo Bonzini | BlockJob *job = find_block_job(device); |
1830 | 6e37fb81 | Paolo Bonzini | |
1831 | 6e37fb81 | Paolo Bonzini | if (!job) {
|
1832 | 6e37fb81 | Paolo Bonzini | error_set(errp, QERR_BLOCK_JOB_NOT_ACTIVE, device); |
1833 | 6e37fb81 | Paolo Bonzini | return;
|
1834 | 6e37fb81 | Paolo Bonzini | } |
1835 | 6e37fb81 | Paolo Bonzini | |
1836 | 6e37fb81 | Paolo Bonzini | trace_qmp_block_job_resume(job); |
1837 | 6e37fb81 | Paolo Bonzini | block_job_resume(job); |
1838 | 6e37fb81 | Paolo Bonzini | } |
1839 | 6e37fb81 | Paolo Bonzini | |
1840 | aeae883b | Paolo Bonzini | void qmp_block_job_complete(const char *device, Error **errp) |
1841 | aeae883b | Paolo Bonzini | { |
1842 | aeae883b | Paolo Bonzini | BlockJob *job = find_block_job(device); |
1843 | aeae883b | Paolo Bonzini | |
1844 | aeae883b | Paolo Bonzini | if (!job) {
|
1845 | aeae883b | Paolo Bonzini | error_set(errp, QERR_BLOCK_JOB_NOT_ACTIVE, device); |
1846 | aeae883b | Paolo Bonzini | return;
|
1847 | aeae883b | Paolo Bonzini | } |
1848 | aeae883b | Paolo Bonzini | |
1849 | aeae883b | Paolo Bonzini | trace_qmp_block_job_complete(job); |
1850 | aeae883b | Paolo Bonzini | block_job_complete(job, errp); |
1851 | aeae883b | Paolo Bonzini | } |
1852 | aeae883b | Paolo Bonzini | |
1853 | fb5458cd | Stefan Hajnoczi | static void do_qmp_query_block_jobs_one(void *opaque, BlockDriverState *bs) |
1854 | fb5458cd | Stefan Hajnoczi | { |
1855 | fb5458cd | Stefan Hajnoczi | BlockJobInfoList **prev = opaque; |
1856 | fb5458cd | Stefan Hajnoczi | BlockJob *job = bs->job; |
1857 | fb5458cd | Stefan Hajnoczi | |
1858 | fb5458cd | Stefan Hajnoczi | if (job) {
|
1859 | 30e628b7 | Paolo Bonzini | BlockJobInfoList *elem = g_new0(BlockJobInfoList, 1);
|
1860 | 30e628b7 | Paolo Bonzini | elem->value = block_job_query(bs->job); |
1861 | fb5458cd | Stefan Hajnoczi | (*prev)->next = elem; |
1862 | fb5458cd | Stefan Hajnoczi | *prev = elem; |
1863 | fb5458cd | Stefan Hajnoczi | } |
1864 | fb5458cd | Stefan Hajnoczi | } |
1865 | fb5458cd | Stefan Hajnoczi | |
1866 | fb5458cd | Stefan Hajnoczi | BlockJobInfoList *qmp_query_block_jobs(Error **errp) |
1867 | fb5458cd | Stefan Hajnoczi | { |
1868 | fb5458cd | Stefan Hajnoczi | /* Dummy is a fake list element for holding the head pointer */
|
1869 | fb5458cd | Stefan Hajnoczi | BlockJobInfoList dummy = {}; |
1870 | fb5458cd | Stefan Hajnoczi | BlockJobInfoList *prev = &dummy; |
1871 | fb5458cd | Stefan Hajnoczi | bdrv_iterate(do_qmp_query_block_jobs_one, &prev); |
1872 | fb5458cd | Stefan Hajnoczi | return dummy.next;
|
1873 | fb5458cd | Stefan Hajnoczi | } |
1874 | 4d454574 | Paolo Bonzini | |
1875 | 0006383e | Kevin Wolf | QemuOptsList qemu_common_drive_opts = { |
1876 | 4d454574 | Paolo Bonzini | .name = "drive",
|
1877 | 0006383e | Kevin Wolf | .head = QTAILQ_HEAD_INITIALIZER(qemu_common_drive_opts.head), |
1878 | 4d454574 | Paolo Bonzini | .desc = { |
1879 | 4d454574 | Paolo Bonzini | { |
1880 | 4d454574 | Paolo Bonzini | .name = "bus",
|
1881 | 4d454574 | Paolo Bonzini | .type = QEMU_OPT_NUMBER, |
1882 | 4d454574 | Paolo Bonzini | .help = "bus number",
|
1883 | 4d454574 | Paolo Bonzini | },{ |
1884 | 4d454574 | Paolo Bonzini | .name = "unit",
|
1885 | 4d454574 | Paolo Bonzini | .type = QEMU_OPT_NUMBER, |
1886 | 4d454574 | Paolo Bonzini | .help = "unit number (i.e. lun for scsi)",
|
1887 | 4d454574 | Paolo Bonzini | },{ |
1888 | 4d454574 | Paolo Bonzini | .name = "if",
|
1889 | 4d454574 | Paolo Bonzini | .type = QEMU_OPT_STRING, |
1890 | 4d454574 | Paolo Bonzini | .help = "interface (ide, scsi, sd, mtd, floppy, pflash, virtio)",
|
1891 | 4d454574 | Paolo Bonzini | },{ |
1892 | 4d454574 | Paolo Bonzini | .name = "index",
|
1893 | 4d454574 | Paolo Bonzini | .type = QEMU_OPT_NUMBER, |
1894 | 4d454574 | Paolo Bonzini | .help = "index number",
|
1895 | 4d454574 | Paolo Bonzini | },{ |
1896 | 4d454574 | Paolo Bonzini | .name = "cyls",
|
1897 | 4d454574 | Paolo Bonzini | .type = QEMU_OPT_NUMBER, |
1898 | 4d454574 | Paolo Bonzini | .help = "number of cylinders (ide disk geometry)",
|
1899 | 4d454574 | Paolo Bonzini | },{ |
1900 | 4d454574 | Paolo Bonzini | .name = "heads",
|
1901 | 4d454574 | Paolo Bonzini | .type = QEMU_OPT_NUMBER, |
1902 | 4d454574 | Paolo Bonzini | .help = "number of heads (ide disk geometry)",
|
1903 | 4d454574 | Paolo Bonzini | },{ |
1904 | 4d454574 | Paolo Bonzini | .name = "secs",
|
1905 | 4d454574 | Paolo Bonzini | .type = QEMU_OPT_NUMBER, |
1906 | 4d454574 | Paolo Bonzini | .help = "number of sectors (ide disk geometry)",
|
1907 | 4d454574 | Paolo Bonzini | },{ |
1908 | 4d454574 | Paolo Bonzini | .name = "trans",
|
1909 | 4d454574 | Paolo Bonzini | .type = QEMU_OPT_STRING, |
1910 | 4d454574 | Paolo Bonzini | .help = "chs translation (auto, lba. none)",
|
1911 | 4d454574 | Paolo Bonzini | },{ |
1912 | 4d454574 | Paolo Bonzini | .name = "media",
|
1913 | 4d454574 | Paolo Bonzini | .type = QEMU_OPT_STRING, |
1914 | 4d454574 | Paolo Bonzini | .help = "media type (disk, cdrom)",
|
1915 | 4d454574 | Paolo Bonzini | },{ |
1916 | 4d454574 | Paolo Bonzini | .name = "snapshot",
|
1917 | 4d454574 | Paolo Bonzini | .type = QEMU_OPT_BOOL, |
1918 | 4d454574 | Paolo Bonzini | .help = "enable/disable snapshot mode",
|
1919 | 4d454574 | Paolo Bonzini | },{ |
1920 | 4d454574 | Paolo Bonzini | .name = "file",
|
1921 | 4d454574 | Paolo Bonzini | .type = QEMU_OPT_STRING, |
1922 | 4d454574 | Paolo Bonzini | .help = "disk image",
|
1923 | 4d454574 | Paolo Bonzini | },{ |
1924 | a9384aff | Paolo Bonzini | .name = "discard",
|
1925 | a9384aff | Paolo Bonzini | .type = QEMU_OPT_STRING, |
1926 | a9384aff | Paolo Bonzini | .help = "discard operation (ignore/off, unmap/on)",
|
1927 | a9384aff | Paolo Bonzini | },{ |
1928 | 29c4e2b5 | Kevin Wolf | .name = "cache.writeback",
|
1929 | 29c4e2b5 | Kevin Wolf | .type = QEMU_OPT_BOOL, |
1930 | 29c4e2b5 | Kevin Wolf | .help = "enables writeback mode for any caches",
|
1931 | 29c4e2b5 | Kevin Wolf | },{ |
1932 | 29c4e2b5 | Kevin Wolf | .name = "cache.direct",
|
1933 | 29c4e2b5 | Kevin Wolf | .type = QEMU_OPT_BOOL, |
1934 | 29c4e2b5 | Kevin Wolf | .help = "enables use of O_DIRECT (bypass the host page cache)",
|
1935 | 29c4e2b5 | Kevin Wolf | },{ |
1936 | 29c4e2b5 | Kevin Wolf | .name = "cache.no-flush",
|
1937 | 29c4e2b5 | Kevin Wolf | .type = QEMU_OPT_BOOL, |
1938 | 29c4e2b5 | Kevin Wolf | .help = "ignore any flush requests for the device",
|
1939 | 4d454574 | Paolo Bonzini | },{ |
1940 | 4d454574 | Paolo Bonzini | .name = "aio",
|
1941 | 4d454574 | Paolo Bonzini | .type = QEMU_OPT_STRING, |
1942 | 4d454574 | Paolo Bonzini | .help = "host AIO implementation (threads, native)",
|
1943 | 4d454574 | Paolo Bonzini | },{ |
1944 | 4d454574 | Paolo Bonzini | .name = "format",
|
1945 | 4d454574 | Paolo Bonzini | .type = QEMU_OPT_STRING, |
1946 | 4d454574 | Paolo Bonzini | .help = "disk format (raw, qcow2, ...)",
|
1947 | 4d454574 | Paolo Bonzini | },{ |
1948 | 4d454574 | Paolo Bonzini | .name = "serial",
|
1949 | 4d454574 | Paolo Bonzini | .type = QEMU_OPT_STRING, |
1950 | 4d454574 | Paolo Bonzini | .help = "disk serial number",
|
1951 | 4d454574 | Paolo Bonzini | },{ |
1952 | 4d454574 | Paolo Bonzini | .name = "rerror",
|
1953 | 4d454574 | Paolo Bonzini | .type = QEMU_OPT_STRING, |
1954 | 4d454574 | Paolo Bonzini | .help = "read error action",
|
1955 | 4d454574 | Paolo Bonzini | },{ |
1956 | 4d454574 | Paolo Bonzini | .name = "werror",
|
1957 | 4d454574 | Paolo Bonzini | .type = QEMU_OPT_STRING, |
1958 | 4d454574 | Paolo Bonzini | .help = "write error action",
|
1959 | 4d454574 | Paolo Bonzini | },{ |
1960 | 4d454574 | Paolo Bonzini | .name = "addr",
|
1961 | 4d454574 | Paolo Bonzini | .type = QEMU_OPT_STRING, |
1962 | 4d454574 | Paolo Bonzini | .help = "pci address (virtio only)",
|
1963 | 4d454574 | Paolo Bonzini | },{ |
1964 | 0f227a94 | Kevin Wolf | .name = "read-only",
|
1965 | 4d454574 | Paolo Bonzini | .type = QEMU_OPT_BOOL, |
1966 | 4d454574 | Paolo Bonzini | .help = "open drive file as read-only",
|
1967 | 4d454574 | Paolo Bonzini | },{ |
1968 | 57975222 | Kevin Wolf | .name = "throttling.iops-total",
|
1969 | 4d454574 | Paolo Bonzini | .type = QEMU_OPT_NUMBER, |
1970 | 4d454574 | Paolo Bonzini | .help = "limit total I/O operations per second",
|
1971 | 4d454574 | Paolo Bonzini | },{ |
1972 | 57975222 | Kevin Wolf | .name = "throttling.iops-read",
|
1973 | 4d454574 | Paolo Bonzini | .type = QEMU_OPT_NUMBER, |
1974 | 4d454574 | Paolo Bonzini | .help = "limit read operations per second",
|
1975 | 4d454574 | Paolo Bonzini | },{ |
1976 | 57975222 | Kevin Wolf | .name = "throttling.iops-write",
|
1977 | 4d454574 | Paolo Bonzini | .type = QEMU_OPT_NUMBER, |
1978 | 4d454574 | Paolo Bonzini | .help = "limit write operations per second",
|
1979 | 4d454574 | Paolo Bonzini | },{ |
1980 | 57975222 | Kevin Wolf | .name = "throttling.bps-total",
|
1981 | 4d454574 | Paolo Bonzini | .type = QEMU_OPT_NUMBER, |
1982 | 4d454574 | Paolo Bonzini | .help = "limit total bytes per second",
|
1983 | 4d454574 | Paolo Bonzini | },{ |
1984 | 57975222 | Kevin Wolf | .name = "throttling.bps-read",
|
1985 | 4d454574 | Paolo Bonzini | .type = QEMU_OPT_NUMBER, |
1986 | 4d454574 | Paolo Bonzini | .help = "limit read bytes per second",
|
1987 | 4d454574 | Paolo Bonzini | },{ |
1988 | 57975222 | Kevin Wolf | .name = "throttling.bps-write",
|
1989 | 4d454574 | Paolo Bonzini | .type = QEMU_OPT_NUMBER, |
1990 | 4d454574 | Paolo Bonzini | .help = "limit write bytes per second",
|
1991 | 4d454574 | Paolo Bonzini | },{ |
1992 | 4d454574 | Paolo Bonzini | .name = "copy-on-read",
|
1993 | 4d454574 | Paolo Bonzini | .type = QEMU_OPT_BOOL, |
1994 | 4d454574 | Paolo Bonzini | .help = "copy read data from backing file into image file",
|
1995 | 4d454574 | Paolo Bonzini | },{ |
1996 | 4d454574 | Paolo Bonzini | .name = "boot",
|
1997 | 4d454574 | Paolo Bonzini | .type = QEMU_OPT_BOOL, |
1998 | 4d454574 | Paolo Bonzini | .help = "(deprecated, ignored)",
|
1999 | 4d454574 | Paolo Bonzini | }, |
2000 | 4d454574 | Paolo Bonzini | { /* end of list */ }
|
2001 | 4d454574 | Paolo Bonzini | }, |
2002 | 4d454574 | Paolo Bonzini | }; |
2003 | 0006383e | Kevin Wolf | |
2004 | 8afaefb8 | Kevin Wolf | QemuOptsList qemu_old_drive_opts = { |
2005 | 8afaefb8 | Kevin Wolf | .name = "drive",
|
2006 | 8afaefb8 | Kevin Wolf | .head = QTAILQ_HEAD_INITIALIZER(qemu_old_drive_opts.head), |
2007 | 8afaefb8 | Kevin Wolf | .desc = { |
2008 | 8afaefb8 | Kevin Wolf | { |
2009 | 8afaefb8 | Kevin Wolf | .name = "bus",
|
2010 | 8afaefb8 | Kevin Wolf | .type = QEMU_OPT_NUMBER, |
2011 | 8afaefb8 | Kevin Wolf | .help = "bus number",
|
2012 | 8afaefb8 | Kevin Wolf | },{ |
2013 | 8afaefb8 | Kevin Wolf | .name = "unit",
|
2014 | 8afaefb8 | Kevin Wolf | .type = QEMU_OPT_NUMBER, |
2015 | 8afaefb8 | Kevin Wolf | .help = "unit number (i.e. lun for scsi)",
|
2016 | 8afaefb8 | Kevin Wolf | },{ |
2017 | 8afaefb8 | Kevin Wolf | .name = "if",
|
2018 | 8afaefb8 | Kevin Wolf | .type = QEMU_OPT_STRING, |
2019 | 8afaefb8 | Kevin Wolf | .help = "interface (ide, scsi, sd, mtd, floppy, pflash, virtio)",
|
2020 | 8afaefb8 | Kevin Wolf | },{ |
2021 | 8afaefb8 | Kevin Wolf | .name = "index",
|
2022 | 8afaefb8 | Kevin Wolf | .type = QEMU_OPT_NUMBER, |
2023 | 8afaefb8 | Kevin Wolf | .help = "index number",
|
2024 | 8afaefb8 | Kevin Wolf | },{ |
2025 | 8afaefb8 | Kevin Wolf | .name = "cyls",
|
2026 | 8afaefb8 | Kevin Wolf | .type = QEMU_OPT_NUMBER, |
2027 | 8afaefb8 | Kevin Wolf | .help = "number of cylinders (ide disk geometry)",
|
2028 | 8afaefb8 | Kevin Wolf | },{ |
2029 | 8afaefb8 | Kevin Wolf | .name = "heads",
|
2030 | 8afaefb8 | Kevin Wolf | .type = QEMU_OPT_NUMBER, |
2031 | 8afaefb8 | Kevin Wolf | .help = "number of heads (ide disk geometry)",
|
2032 | 8afaefb8 | Kevin Wolf | },{ |
2033 | 8afaefb8 | Kevin Wolf | .name = "secs",
|
2034 | 8afaefb8 | Kevin Wolf | .type = QEMU_OPT_NUMBER, |
2035 | 8afaefb8 | Kevin Wolf | .help = "number of sectors (ide disk geometry)",
|
2036 | 8afaefb8 | Kevin Wolf | },{ |
2037 | 8afaefb8 | Kevin Wolf | .name = "trans",
|
2038 | 8afaefb8 | Kevin Wolf | .type = QEMU_OPT_STRING, |
2039 | 8afaefb8 | Kevin Wolf | .help = "chs translation (auto, lba. none)",
|
2040 | 8afaefb8 | Kevin Wolf | },{ |
2041 | 8afaefb8 | Kevin Wolf | .name = "media",
|
2042 | 8afaefb8 | Kevin Wolf | .type = QEMU_OPT_STRING, |
2043 | 8afaefb8 | Kevin Wolf | .help = "media type (disk, cdrom)",
|
2044 | 8afaefb8 | Kevin Wolf | },{ |
2045 | 8afaefb8 | Kevin Wolf | .name = "snapshot",
|
2046 | 8afaefb8 | Kevin Wolf | .type = QEMU_OPT_BOOL, |
2047 | 8afaefb8 | Kevin Wolf | .help = "enable/disable snapshot mode",
|
2048 | 8afaefb8 | Kevin Wolf | },{ |
2049 | 8afaefb8 | Kevin Wolf | .name = "file",
|
2050 | 8afaefb8 | Kevin Wolf | .type = QEMU_OPT_STRING, |
2051 | 8afaefb8 | Kevin Wolf | .help = "disk image",
|
2052 | 8afaefb8 | Kevin Wolf | },{ |
2053 | 8afaefb8 | Kevin Wolf | .name = "discard",
|
2054 | 8afaefb8 | Kevin Wolf | .type = QEMU_OPT_STRING, |
2055 | 8afaefb8 | Kevin Wolf | .help = "discard operation (ignore/off, unmap/on)",
|
2056 | 8afaefb8 | Kevin Wolf | },{ |
2057 | 8afaefb8 | Kevin Wolf | .name = "cache",
|
2058 | 8afaefb8 | Kevin Wolf | .type = QEMU_OPT_STRING, |
2059 | 8afaefb8 | Kevin Wolf | .help = "host cache usage (none, writeback, writethrough, "
|
2060 | 8afaefb8 | Kevin Wolf | "directsync, unsafe)",
|
2061 | 8afaefb8 | Kevin Wolf | },{ |
2062 | 8afaefb8 | Kevin Wolf | .name = "aio",
|
2063 | 8afaefb8 | Kevin Wolf | .type = QEMU_OPT_STRING, |
2064 | 8afaefb8 | Kevin Wolf | .help = "host AIO implementation (threads, native)",
|
2065 | 8afaefb8 | Kevin Wolf | },{ |
2066 | 8afaefb8 | Kevin Wolf | .name = "format",
|
2067 | 8afaefb8 | Kevin Wolf | .type = QEMU_OPT_STRING, |
2068 | 8afaefb8 | Kevin Wolf | .help = "disk format (raw, qcow2, ...)",
|
2069 | 8afaefb8 | Kevin Wolf | },{ |
2070 | 8afaefb8 | Kevin Wolf | .name = "serial",
|
2071 | 8afaefb8 | Kevin Wolf | .type = QEMU_OPT_STRING, |
2072 | 8afaefb8 | Kevin Wolf | .help = "disk serial number",
|
2073 | 8afaefb8 | Kevin Wolf | },{ |
2074 | 8afaefb8 | Kevin Wolf | .name = "rerror",
|
2075 | 8afaefb8 | Kevin Wolf | .type = QEMU_OPT_STRING, |
2076 | 8afaefb8 | Kevin Wolf | .help = "read error action",
|
2077 | 8afaefb8 | Kevin Wolf | },{ |
2078 | 8afaefb8 | Kevin Wolf | .name = "werror",
|
2079 | 8afaefb8 | Kevin Wolf | .type = QEMU_OPT_STRING, |
2080 | 8afaefb8 | Kevin Wolf | .help = "write error action",
|
2081 | 8afaefb8 | Kevin Wolf | },{ |
2082 | 8afaefb8 | Kevin Wolf | .name = "addr",
|
2083 | 8afaefb8 | Kevin Wolf | .type = QEMU_OPT_STRING, |
2084 | 8afaefb8 | Kevin Wolf | .help = "pci address (virtio only)",
|
2085 | 8afaefb8 | Kevin Wolf | },{ |
2086 | 8afaefb8 | Kevin Wolf | .name = "readonly",
|
2087 | 8afaefb8 | Kevin Wolf | .type = QEMU_OPT_BOOL, |
2088 | 8afaefb8 | Kevin Wolf | .help = "open drive file as read-only",
|
2089 | 8afaefb8 | Kevin Wolf | },{ |
2090 | 8afaefb8 | Kevin Wolf | .name = "iops",
|
2091 | 8afaefb8 | Kevin Wolf | .type = QEMU_OPT_NUMBER, |
2092 | 8afaefb8 | Kevin Wolf | .help = "limit total I/O operations per second",
|
2093 | 8afaefb8 | Kevin Wolf | },{ |
2094 | 8afaefb8 | Kevin Wolf | .name = "iops_rd",
|
2095 | 8afaefb8 | Kevin Wolf | .type = QEMU_OPT_NUMBER, |
2096 | 8afaefb8 | Kevin Wolf | .help = "limit read operations per second",
|
2097 | 8afaefb8 | Kevin Wolf | },{ |
2098 | 8afaefb8 | Kevin Wolf | .name = "iops_wr",
|
2099 | 8afaefb8 | Kevin Wolf | .type = QEMU_OPT_NUMBER, |
2100 | 8afaefb8 | Kevin Wolf | .help = "limit write operations per second",
|
2101 | 8afaefb8 | Kevin Wolf | },{ |
2102 | 8afaefb8 | Kevin Wolf | .name = "bps",
|
2103 | 8afaefb8 | Kevin Wolf | .type = QEMU_OPT_NUMBER, |
2104 | 8afaefb8 | Kevin Wolf | .help = "limit total bytes per second",
|
2105 | 8afaefb8 | Kevin Wolf | },{ |
2106 | 8afaefb8 | Kevin Wolf | .name = "bps_rd",
|
2107 | 8afaefb8 | Kevin Wolf | .type = QEMU_OPT_NUMBER, |
2108 | 8afaefb8 | Kevin Wolf | .help = "limit read bytes per second",
|
2109 | 8afaefb8 | Kevin Wolf | },{ |
2110 | 8afaefb8 | Kevin Wolf | .name = "bps_wr",
|
2111 | 8afaefb8 | Kevin Wolf | .type = QEMU_OPT_NUMBER, |
2112 | 8afaefb8 | Kevin Wolf | .help = "limit write bytes per second",
|
2113 | 8afaefb8 | Kevin Wolf | },{ |
2114 | 8afaefb8 | Kevin Wolf | .name = "copy-on-read",
|
2115 | 8afaefb8 | Kevin Wolf | .type = QEMU_OPT_BOOL, |
2116 | 8afaefb8 | Kevin Wolf | .help = "copy read data from backing file into image file",
|
2117 | 8afaefb8 | Kevin Wolf | },{ |
2118 | 8afaefb8 | Kevin Wolf | .name = "boot",
|
2119 | 8afaefb8 | Kevin Wolf | .type = QEMU_OPT_BOOL, |
2120 | 8afaefb8 | Kevin Wolf | .help = "(deprecated, ignored)",
|
2121 | 8afaefb8 | Kevin Wolf | }, |
2122 | 8afaefb8 | Kevin Wolf | { /* end of list */ }
|
2123 | 8afaefb8 | Kevin Wolf | }, |
2124 | 8afaefb8 | Kevin Wolf | }; |
2125 | 8afaefb8 | Kevin Wolf | |
2126 | 0006383e | Kevin Wolf | QemuOptsList qemu_drive_opts = { |
2127 | 0006383e | Kevin Wolf | .name = "drive",
|
2128 | 0006383e | Kevin Wolf | .head = QTAILQ_HEAD_INITIALIZER(qemu_drive_opts.head), |
2129 | 0006383e | Kevin Wolf | .desc = { |
2130 | 492fdc6f | Kevin Wolf | /*
|
2131 | 492fdc6f | Kevin Wolf | * no elements => accept any params
|
2132 | 492fdc6f | Kevin Wolf | * validation will happen later
|
2133 | 492fdc6f | Kevin Wolf | */
|
2134 | 0006383e | Kevin Wolf | { /* end of list */ }
|
2135 | 0006383e | Kevin Wolf | }, |
2136 | 0006383e | Kevin Wolf | }; |