Juan Quintela | 1f0776f | 2023-03-01 21:18:45 +0100 | [diff] [blame] | 1 | /* |
| 2 | * QEMU migration capabilities |
| 3 | * |
| 4 | * Copyright (c) 2012-2023 Red Hat Inc |
| 5 | * |
| 6 | * Authors: |
| 7 | * Orit Wasserman <owasserm@redhat.com> |
| 8 | * Juan Quintela <quintela@redhat.com> |
| 9 | * |
| 10 | * This work is licensed under the terms of the GNU GPL, version 2 or later. |
| 11 | * See the COPYING file in the top-level directory. |
| 12 | */ |
| 13 | |
| 14 | #include "qemu/osdep.h" |
Juan Quintela | 09d6c96 | 2023-03-02 10:13:16 +0100 | [diff] [blame] | 15 | #include "exec/target_page.h" |
Juan Quintela | 9c894df | 2023-03-02 11:00:12 +0100 | [diff] [blame] | 16 | #include "qapi/clone-visitor.h" |
Juan Quintela | 7760870 | 2023-03-01 23:05:53 +0100 | [diff] [blame] | 17 | #include "qapi/error.h" |
Juan Quintela | 4d0c6b6 | 2023-03-01 23:15:59 +0100 | [diff] [blame] | 18 | #include "qapi/qapi-commands-migration.h" |
Juan Quintela | 9c894df | 2023-03-02 11:00:12 +0100 | [diff] [blame] | 19 | #include "qapi/qapi-visit-migration.h" |
Juan Quintela | f80196b | 2023-03-01 23:25:44 +0100 | [diff] [blame] | 20 | #include "qapi/qmp/qerror.h" |
Juan Quintela | 09d6c96 | 2023-03-02 10:13:16 +0100 | [diff] [blame] | 21 | #include "qapi/qmp/qnull.h" |
Juan Quintela | 7760870 | 2023-03-01 23:05:53 +0100 | [diff] [blame] | 22 | #include "sysemu/runstate.h" |
Juan Quintela | 09d6c96 | 2023-03-02 10:13:16 +0100 | [diff] [blame] | 23 | #include "migration/colo.h" |
Juan Quintela | 2682c4e | 2023-03-02 01:17:23 +0100 | [diff] [blame] | 24 | #include "migration/misc.h" |
Juan Quintela | 1f0776f | 2023-03-01 21:18:45 +0100 | [diff] [blame] | 25 | #include "migration.h" |
Juan Quintela | e1fde0e | 2023-05-15 21:56:58 +0200 | [diff] [blame] | 26 | #include "migration-stats.h" |
Juan Quintela | 09d6c96 | 2023-03-02 10:13:16 +0100 | [diff] [blame] | 27 | #include "qemu-file.h" |
Juan Quintela | 7760870 | 2023-03-01 23:05:53 +0100 | [diff] [blame] | 28 | #include "ram.h" |
Juan Quintela | 1f0776f | 2023-03-01 21:18:45 +0100 | [diff] [blame] | 29 | #include "options.h" |
Hyman Huang(黄勇) | dc62395 | 2023-06-07 23:30:50 +0800 | [diff] [blame] | 30 | #include "sysemu/kvm.h" |
Juan Quintela | 1f0776f | 2023-03-01 21:18:45 +0100 | [diff] [blame] | 31 | |
Juan Quintela | 09d6c96 | 2023-03-02 10:13:16 +0100 | [diff] [blame] | 32 | /* Maximum migrate downtime set to 2000 seconds */ |
| 33 | #define MAX_MIGRATE_DOWNTIME_SECONDS 2000 |
| 34 | #define MAX_MIGRATE_DOWNTIME (MAX_MIGRATE_DOWNTIME_SECONDS * 1000) |
| 35 | |
Juan Quintela | f943652 | 2023-03-02 12:55:57 +0100 | [diff] [blame] | 36 | #define MAX_THROTTLE (128 << 20) /* Migration transfer speed throttling */ |
| 37 | |
| 38 | /* Time in milliseconds we are allowed to stop the source, |
| 39 | * for sending the last part */ |
| 40 | #define DEFAULT_MIGRATE_SET_DOWNTIME 300 |
| 41 | |
| 42 | /* Default compression thread count */ |
| 43 | #define DEFAULT_MIGRATE_COMPRESS_THREAD_COUNT 8 |
| 44 | /* Default decompression thread count, usually decompression is at |
| 45 | * least 4 times as fast as compression.*/ |
| 46 | #define DEFAULT_MIGRATE_DECOMPRESS_THREAD_COUNT 2 |
| 47 | /*0: means nocompress, 1: best speed, ... 9: best compress ratio */ |
| 48 | #define DEFAULT_MIGRATE_COMPRESS_LEVEL 1 |
| 49 | /* Define default autoconverge cpu throttle migration parameters */ |
| 50 | #define DEFAULT_MIGRATE_THROTTLE_TRIGGER_THRESHOLD 50 |
| 51 | #define DEFAULT_MIGRATE_CPU_THROTTLE_INITIAL 20 |
| 52 | #define DEFAULT_MIGRATE_CPU_THROTTLE_INCREMENT 10 |
| 53 | #define DEFAULT_MIGRATE_MAX_CPU_THROTTLE 99 |
| 54 | |
| 55 | /* Migration XBZRLE default cache size */ |
| 56 | #define DEFAULT_MIGRATE_XBZRLE_CACHE_SIZE (64 * 1024 * 1024) |
| 57 | |
| 58 | /* The delay time (in ms) between two COLO checkpoints */ |
| 59 | #define DEFAULT_MIGRATE_X_CHECKPOINT_DELAY (200 * 100) |
| 60 | #define DEFAULT_MIGRATE_MULTIFD_CHANNELS 2 |
| 61 | #define DEFAULT_MIGRATE_MULTIFD_COMPRESSION MULTIFD_COMPRESSION_NONE |
| 62 | /* 0: means nocompress, 1: best speed, ... 9: best compress ratio */ |
| 63 | #define DEFAULT_MIGRATE_MULTIFD_ZLIB_LEVEL 1 |
| 64 | /* 0: means nocompress, 1: best speed, ... 20: best compress ratio */ |
| 65 | #define DEFAULT_MIGRATE_MULTIFD_ZSTD_LEVEL 1 |
| 66 | |
| 67 | /* Background transfer rate for postcopy, 0 means unlimited, note |
| 68 | * that page requests can still exceed this limit. |
| 69 | */ |
| 70 | #define DEFAULT_MIGRATE_MAX_POSTCOPY_BANDWIDTH 0 |
| 71 | |
| 72 | /* |
| 73 | * Parameters for self_announce_delay giving a stream of RARP/ARP |
| 74 | * packets after migration. |
| 75 | */ |
| 76 | #define DEFAULT_MIGRATE_ANNOUNCE_INITIAL 50 |
| 77 | #define DEFAULT_MIGRATE_ANNOUNCE_MAX 550 |
| 78 | #define DEFAULT_MIGRATE_ANNOUNCE_ROUNDS 5 |
| 79 | #define DEFAULT_MIGRATE_ANNOUNCE_STEP 100 |
| 80 | |
| 81 | #define DEFINE_PROP_MIG_CAP(name, x) \ |
| 82 | DEFINE_PROP_BOOL(name, MigrationState, capabilities[x], false) |
| 83 | |
Hyman Huang(黄勇) | 4d80785 | 2023-06-07 21:32:59 +0800 | [diff] [blame] | 84 | #define DEFAULT_MIGRATE_VCPU_DIRTY_LIMIT_PERIOD 1000 /* milliseconds */ |
Hyman Huang(黄勇) | 09f9ec9 | 2023-06-07 22:58:32 +0800 | [diff] [blame] | 85 | #define DEFAULT_MIGRATE_VCPU_DIRTY_LIMIT 1 /* MB/s */ |
Hyman Huang(黄勇) | 4d80785 | 2023-06-07 21:32:59 +0800 | [diff] [blame] | 86 | |
Juan Quintela | f943652 | 2023-03-02 12:55:57 +0100 | [diff] [blame] | 87 | Property migration_properties[] = { |
| 88 | DEFINE_PROP_BOOL("store-global-state", MigrationState, |
| 89 | store_global_state, true), |
| 90 | DEFINE_PROP_BOOL("send-configuration", MigrationState, |
| 91 | send_configuration, true), |
| 92 | DEFINE_PROP_BOOL("send-section-footer", MigrationState, |
| 93 | send_section_footer, true), |
| 94 | DEFINE_PROP_BOOL("decompress-error-check", MigrationState, |
| 95 | decompress_error_check, true), |
Juan Quintela | 77c259a | 2022-06-21 12:13:14 +0200 | [diff] [blame] | 96 | DEFINE_PROP_BOOL("multifd-flush-after-each-section", MigrationState, |
Juan Quintela | 294e5a4 | 2022-06-21 13:36:11 +0200 | [diff] [blame] | 97 | multifd_flush_after_each_section, false), |
Juan Quintela | f943652 | 2023-03-02 12:55:57 +0100 | [diff] [blame] | 98 | DEFINE_PROP_UINT8("x-clear-bitmap-shift", MigrationState, |
| 99 | clear_bitmap_shift, CLEAR_BITMAP_SHIFT_DEFAULT), |
| 100 | DEFINE_PROP_BOOL("x-preempt-pre-7-2", MigrationState, |
| 101 | preempt_pre_7_2, false), |
| 102 | |
| 103 | /* Migration parameters */ |
| 104 | DEFINE_PROP_UINT8("x-compress-level", MigrationState, |
| 105 | parameters.compress_level, |
| 106 | DEFAULT_MIGRATE_COMPRESS_LEVEL), |
| 107 | DEFINE_PROP_UINT8("x-compress-threads", MigrationState, |
| 108 | parameters.compress_threads, |
| 109 | DEFAULT_MIGRATE_COMPRESS_THREAD_COUNT), |
| 110 | DEFINE_PROP_BOOL("x-compress-wait-thread", MigrationState, |
| 111 | parameters.compress_wait_thread, true), |
| 112 | DEFINE_PROP_UINT8("x-decompress-threads", MigrationState, |
| 113 | parameters.decompress_threads, |
| 114 | DEFAULT_MIGRATE_DECOMPRESS_THREAD_COUNT), |
| 115 | DEFINE_PROP_UINT8("x-throttle-trigger-threshold", MigrationState, |
| 116 | parameters.throttle_trigger_threshold, |
| 117 | DEFAULT_MIGRATE_THROTTLE_TRIGGER_THRESHOLD), |
| 118 | DEFINE_PROP_UINT8("x-cpu-throttle-initial", MigrationState, |
| 119 | parameters.cpu_throttle_initial, |
| 120 | DEFAULT_MIGRATE_CPU_THROTTLE_INITIAL), |
| 121 | DEFINE_PROP_UINT8("x-cpu-throttle-increment", MigrationState, |
| 122 | parameters.cpu_throttle_increment, |
| 123 | DEFAULT_MIGRATE_CPU_THROTTLE_INCREMENT), |
| 124 | DEFINE_PROP_BOOL("x-cpu-throttle-tailslow", MigrationState, |
| 125 | parameters.cpu_throttle_tailslow, false), |
| 126 | DEFINE_PROP_SIZE("x-max-bandwidth", MigrationState, |
| 127 | parameters.max_bandwidth, MAX_THROTTLE), |
| 128 | DEFINE_PROP_UINT64("x-downtime-limit", MigrationState, |
| 129 | parameters.downtime_limit, |
| 130 | DEFAULT_MIGRATE_SET_DOWNTIME), |
| 131 | DEFINE_PROP_UINT32("x-checkpoint-delay", MigrationState, |
| 132 | parameters.x_checkpoint_delay, |
| 133 | DEFAULT_MIGRATE_X_CHECKPOINT_DELAY), |
| 134 | DEFINE_PROP_UINT8("multifd-channels", MigrationState, |
| 135 | parameters.multifd_channels, |
| 136 | DEFAULT_MIGRATE_MULTIFD_CHANNELS), |
| 137 | DEFINE_PROP_MULTIFD_COMPRESSION("multifd-compression", MigrationState, |
| 138 | parameters.multifd_compression, |
| 139 | DEFAULT_MIGRATE_MULTIFD_COMPRESSION), |
| 140 | DEFINE_PROP_UINT8("multifd-zlib-level", MigrationState, |
| 141 | parameters.multifd_zlib_level, |
| 142 | DEFAULT_MIGRATE_MULTIFD_ZLIB_LEVEL), |
| 143 | DEFINE_PROP_UINT8("multifd-zstd-level", MigrationState, |
| 144 | parameters.multifd_zstd_level, |
| 145 | DEFAULT_MIGRATE_MULTIFD_ZSTD_LEVEL), |
| 146 | DEFINE_PROP_SIZE("xbzrle-cache-size", MigrationState, |
| 147 | parameters.xbzrle_cache_size, |
| 148 | DEFAULT_MIGRATE_XBZRLE_CACHE_SIZE), |
| 149 | DEFINE_PROP_SIZE("max-postcopy-bandwidth", MigrationState, |
| 150 | parameters.max_postcopy_bandwidth, |
| 151 | DEFAULT_MIGRATE_MAX_POSTCOPY_BANDWIDTH), |
| 152 | DEFINE_PROP_UINT8("max-cpu-throttle", MigrationState, |
| 153 | parameters.max_cpu_throttle, |
| 154 | DEFAULT_MIGRATE_MAX_CPU_THROTTLE), |
| 155 | DEFINE_PROP_SIZE("announce-initial", MigrationState, |
| 156 | parameters.announce_initial, |
| 157 | DEFAULT_MIGRATE_ANNOUNCE_INITIAL), |
| 158 | DEFINE_PROP_SIZE("announce-max", MigrationState, |
| 159 | parameters.announce_max, |
| 160 | DEFAULT_MIGRATE_ANNOUNCE_MAX), |
| 161 | DEFINE_PROP_SIZE("announce-rounds", MigrationState, |
| 162 | parameters.announce_rounds, |
| 163 | DEFAULT_MIGRATE_ANNOUNCE_ROUNDS), |
| 164 | DEFINE_PROP_SIZE("announce-step", MigrationState, |
| 165 | parameters.announce_step, |
| 166 | DEFAULT_MIGRATE_ANNOUNCE_STEP), |
| 167 | DEFINE_PROP_STRING("tls-creds", MigrationState, parameters.tls_creds), |
| 168 | DEFINE_PROP_STRING("tls-hostname", MigrationState, parameters.tls_hostname), |
| 169 | DEFINE_PROP_STRING("tls-authz", MigrationState, parameters.tls_authz), |
Hyman Huang(黄勇) | 4d80785 | 2023-06-07 21:32:59 +0800 | [diff] [blame] | 170 | DEFINE_PROP_UINT64("x-vcpu-dirty-limit-period", MigrationState, |
| 171 | parameters.x_vcpu_dirty_limit_period, |
| 172 | DEFAULT_MIGRATE_VCPU_DIRTY_LIMIT_PERIOD), |
Hyman Huang(黄勇) | 09f9ec9 | 2023-06-07 22:58:32 +0800 | [diff] [blame] | 173 | DEFINE_PROP_UINT64("vcpu-dirty-limit", MigrationState, |
| 174 | parameters.vcpu_dirty_limit, |
| 175 | DEFAULT_MIGRATE_VCPU_DIRTY_LIMIT), |
Juan Quintela | f943652 | 2023-03-02 12:55:57 +0100 | [diff] [blame] | 176 | |
| 177 | /* Migration capabilities */ |
| 178 | DEFINE_PROP_MIG_CAP("x-xbzrle", MIGRATION_CAPABILITY_XBZRLE), |
| 179 | DEFINE_PROP_MIG_CAP("x-rdma-pin-all", MIGRATION_CAPABILITY_RDMA_PIN_ALL), |
| 180 | DEFINE_PROP_MIG_CAP("x-auto-converge", MIGRATION_CAPABILITY_AUTO_CONVERGE), |
| 181 | DEFINE_PROP_MIG_CAP("x-zero-blocks", MIGRATION_CAPABILITY_ZERO_BLOCKS), |
| 182 | DEFINE_PROP_MIG_CAP("x-compress", MIGRATION_CAPABILITY_COMPRESS), |
| 183 | DEFINE_PROP_MIG_CAP("x-events", MIGRATION_CAPABILITY_EVENTS), |
| 184 | DEFINE_PROP_MIG_CAP("x-postcopy-ram", MIGRATION_CAPABILITY_POSTCOPY_RAM), |
| 185 | DEFINE_PROP_MIG_CAP("x-postcopy-preempt", |
| 186 | MIGRATION_CAPABILITY_POSTCOPY_PREEMPT), |
| 187 | DEFINE_PROP_MIG_CAP("x-colo", MIGRATION_CAPABILITY_X_COLO), |
| 188 | DEFINE_PROP_MIG_CAP("x-release-ram", MIGRATION_CAPABILITY_RELEASE_RAM), |
| 189 | DEFINE_PROP_MIG_CAP("x-block", MIGRATION_CAPABILITY_BLOCK), |
| 190 | DEFINE_PROP_MIG_CAP("x-return-path", MIGRATION_CAPABILITY_RETURN_PATH), |
| 191 | DEFINE_PROP_MIG_CAP("x-multifd", MIGRATION_CAPABILITY_MULTIFD), |
| 192 | DEFINE_PROP_MIG_CAP("x-background-snapshot", |
| 193 | MIGRATION_CAPABILITY_BACKGROUND_SNAPSHOT), |
| 194 | #ifdef CONFIG_LINUX |
| 195 | DEFINE_PROP_MIG_CAP("x-zero-copy-send", |
| 196 | MIGRATION_CAPABILITY_ZERO_COPY_SEND), |
| 197 | #endif |
Avihai Horon | 6574232 | 2023-06-21 14:11:54 +0300 | [diff] [blame] | 198 | DEFINE_PROP_MIG_CAP("x-switchover-ack", |
| 199 | MIGRATION_CAPABILITY_SWITCHOVER_ACK), |
Hyman Huang(黄勇) | dc62395 | 2023-06-07 23:30:50 +0800 | [diff] [blame] | 200 | DEFINE_PROP_MIG_CAP("x-dirty-limit", MIGRATION_CAPABILITY_DIRTY_LIMIT), |
Juan Quintela | f943652 | 2023-03-02 12:55:57 +0100 | [diff] [blame] | 201 | DEFINE_PROP_END_OF_LIST(), |
| 202 | }; |
| 203 | |
Juan Quintela | 1f0776f | 2023-03-01 21:18:45 +0100 | [diff] [blame] | 204 | bool migrate_auto_converge(void) |
| 205 | { |
Juan Quintela | 8f9c532 | 2023-03-01 23:11:08 +0100 | [diff] [blame] | 206 | MigrationState *s = migrate_get_current(); |
Juan Quintela | 1f0776f | 2023-03-01 21:18:45 +0100 | [diff] [blame] | 207 | |
| 208 | return s->capabilities[MIGRATION_CAPABILITY_AUTO_CONVERGE]; |
| 209 | } |
| 210 | |
| 211 | bool migrate_background_snapshot(void) |
| 212 | { |
Juan Quintela | 8f9c532 | 2023-03-01 23:11:08 +0100 | [diff] [blame] | 213 | MigrationState *s = migrate_get_current(); |
Juan Quintela | 1f0776f | 2023-03-01 21:18:45 +0100 | [diff] [blame] | 214 | |
| 215 | return s->capabilities[MIGRATION_CAPABILITY_BACKGROUND_SNAPSHOT]; |
| 216 | } |
| 217 | |
Juan Quintela | 9d4b1e5 | 2023-03-01 22:23:57 +0100 | [diff] [blame] | 218 | bool migrate_block(void) |
| 219 | { |
Juan Quintela | 8f9c532 | 2023-03-01 23:11:08 +0100 | [diff] [blame] | 220 | MigrationState *s = migrate_get_current(); |
Juan Quintela | 9d4b1e5 | 2023-03-01 22:23:57 +0100 | [diff] [blame] | 221 | |
| 222 | return s->capabilities[MIGRATION_CAPABILITY_BLOCK]; |
| 223 | } |
| 224 | |
Juan Quintela | 5e80464 | 2023-03-01 22:00:16 +0100 | [diff] [blame] | 225 | bool migrate_colo(void) |
| 226 | { |
| 227 | MigrationState *s = migrate_get_current(); |
Juan Quintela | 8f9c532 | 2023-03-01 23:11:08 +0100 | [diff] [blame] | 228 | |
Juan Quintela | 5e80464 | 2023-03-01 22:00:16 +0100 | [diff] [blame] | 229 | return s->capabilities[MIGRATION_CAPABILITY_X_COLO]; |
| 230 | } |
| 231 | |
Juan Quintela | a7a94d1 | 2023-03-01 22:03:48 +0100 | [diff] [blame] | 232 | bool migrate_compress(void) |
| 233 | { |
Juan Quintela | 8f9c532 | 2023-03-01 23:11:08 +0100 | [diff] [blame] | 234 | MigrationState *s = migrate_get_current(); |
Juan Quintela | a7a94d1 | 2023-03-01 22:03:48 +0100 | [diff] [blame] | 235 | |
| 236 | return s->capabilities[MIGRATION_CAPABILITY_COMPRESS]; |
| 237 | } |
| 238 | |
Juan Quintela | 1f0776f | 2023-03-01 21:18:45 +0100 | [diff] [blame] | 239 | bool migrate_dirty_bitmaps(void) |
| 240 | { |
Juan Quintela | 8f9c532 | 2023-03-01 23:11:08 +0100 | [diff] [blame] | 241 | MigrationState *s = migrate_get_current(); |
Juan Quintela | 1f0776f | 2023-03-01 21:18:45 +0100 | [diff] [blame] | 242 | |
| 243 | return s->capabilities[MIGRATION_CAPABILITY_DIRTY_BITMAPS]; |
| 244 | } |
| 245 | |
Hyman Huang(黄勇) | dc62395 | 2023-06-07 23:30:50 +0800 | [diff] [blame] | 246 | bool migrate_dirty_limit(void) |
| 247 | { |
| 248 | MigrationState *s = migrate_get_current(); |
| 249 | |
| 250 | return s->capabilities[MIGRATION_CAPABILITY_DIRTY_LIMIT]; |
| 251 | } |
| 252 | |
Juan Quintela | b890902 | 2023-03-01 22:08:09 +0100 | [diff] [blame] | 253 | bool migrate_events(void) |
| 254 | { |
Juan Quintela | 8f9c532 | 2023-03-01 23:11:08 +0100 | [diff] [blame] | 255 | MigrationState *s = migrate_get_current(); |
Juan Quintela | b890902 | 2023-03-01 22:08:09 +0100 | [diff] [blame] | 256 | |
| 257 | return s->capabilities[MIGRATION_CAPABILITY_EVENTS]; |
| 258 | } |
| 259 | |
Juan Quintela | 1f0776f | 2023-03-01 21:18:45 +0100 | [diff] [blame] | 260 | bool migrate_ignore_shared(void) |
| 261 | { |
Juan Quintela | 8f9c532 | 2023-03-01 23:11:08 +0100 | [diff] [blame] | 262 | MigrationState *s = migrate_get_current(); |
Juan Quintela | 1f0776f | 2023-03-01 21:18:45 +0100 | [diff] [blame] | 263 | |
| 264 | return s->capabilities[MIGRATION_CAPABILITY_X_IGNORE_SHARED]; |
| 265 | } |
| 266 | |
| 267 | bool migrate_late_block_activate(void) |
| 268 | { |
Juan Quintela | 8f9c532 | 2023-03-01 23:11:08 +0100 | [diff] [blame] | 269 | MigrationState *s = migrate_get_current(); |
Juan Quintela | 1f0776f | 2023-03-01 21:18:45 +0100 | [diff] [blame] | 270 | |
| 271 | return s->capabilities[MIGRATION_CAPABILITY_LATE_BLOCK_ACTIVATE]; |
| 272 | } |
| 273 | |
Juan Quintela | 51b0754 | 2023-03-01 22:10:29 +0100 | [diff] [blame] | 274 | bool migrate_multifd(void) |
| 275 | { |
Juan Quintela | 8f9c532 | 2023-03-01 23:11:08 +0100 | [diff] [blame] | 276 | MigrationState *s = migrate_get_current(); |
Juan Quintela | 51b0754 | 2023-03-01 22:10:29 +0100 | [diff] [blame] | 277 | |
| 278 | return s->capabilities[MIGRATION_CAPABILITY_MULTIFD]; |
| 279 | } |
| 280 | |
Juan Quintela | 1f0776f | 2023-03-01 21:18:45 +0100 | [diff] [blame] | 281 | bool migrate_pause_before_switchover(void) |
| 282 | { |
Juan Quintela | 8f9c532 | 2023-03-01 23:11:08 +0100 | [diff] [blame] | 283 | MigrationState *s = migrate_get_current(); |
Juan Quintela | 1f0776f | 2023-03-01 21:18:45 +0100 | [diff] [blame] | 284 | |
| 285 | return s->capabilities[MIGRATION_CAPABILITY_PAUSE_BEFORE_SWITCHOVER]; |
| 286 | } |
| 287 | |
| 288 | bool migrate_postcopy_blocktime(void) |
| 289 | { |
Juan Quintela | 8f9c532 | 2023-03-01 23:11:08 +0100 | [diff] [blame] | 290 | MigrationState *s = migrate_get_current(); |
Juan Quintela | 1f0776f | 2023-03-01 21:18:45 +0100 | [diff] [blame] | 291 | |
| 292 | return s->capabilities[MIGRATION_CAPABILITY_POSTCOPY_BLOCKTIME]; |
| 293 | } |
| 294 | |
| 295 | bool migrate_postcopy_preempt(void) |
| 296 | { |
Juan Quintela | 8f9c532 | 2023-03-01 23:11:08 +0100 | [diff] [blame] | 297 | MigrationState *s = migrate_get_current(); |
Juan Quintela | 1f0776f | 2023-03-01 21:18:45 +0100 | [diff] [blame] | 298 | |
| 299 | return s->capabilities[MIGRATION_CAPABILITY_POSTCOPY_PREEMPT]; |
| 300 | } |
| 301 | |
| 302 | bool migrate_postcopy_ram(void) |
| 303 | { |
Juan Quintela | 8f9c532 | 2023-03-01 23:11:08 +0100 | [diff] [blame] | 304 | MigrationState *s = migrate_get_current(); |
Juan Quintela | 1f0776f | 2023-03-01 21:18:45 +0100 | [diff] [blame] | 305 | |
| 306 | return s->capabilities[MIGRATION_CAPABILITY_POSTCOPY_RAM]; |
| 307 | } |
| 308 | |
Juan Quintela | 17cba69 | 2023-03-01 22:41:55 +0100 | [diff] [blame] | 309 | bool migrate_rdma_pin_all(void) |
| 310 | { |
| 311 | MigrationState *s = migrate_get_current(); |
| 312 | |
| 313 | return s->capabilities[MIGRATION_CAPABILITY_RDMA_PIN_ALL]; |
| 314 | } |
| 315 | |
Juan Quintela | 1f0776f | 2023-03-01 21:18:45 +0100 | [diff] [blame] | 316 | bool migrate_release_ram(void) |
| 317 | { |
Juan Quintela | 8f9c532 | 2023-03-01 23:11:08 +0100 | [diff] [blame] | 318 | MigrationState *s = migrate_get_current(); |
Juan Quintela | 1f0776f | 2023-03-01 21:18:45 +0100 | [diff] [blame] | 319 | |
| 320 | return s->capabilities[MIGRATION_CAPABILITY_RELEASE_RAM]; |
| 321 | } |
| 322 | |
Juan Quintela | 38ad111 | 2023-03-01 22:25:47 +0100 | [diff] [blame] | 323 | bool migrate_return_path(void) |
| 324 | { |
Juan Quintela | 8f9c532 | 2023-03-01 23:11:08 +0100 | [diff] [blame] | 325 | MigrationState *s = migrate_get_current(); |
Juan Quintela | 38ad111 | 2023-03-01 22:25:47 +0100 | [diff] [blame] | 326 | |
| 327 | return s->capabilities[MIGRATION_CAPABILITY_RETURN_PATH]; |
| 328 | } |
| 329 | |
Avihai Horon | 6574232 | 2023-06-21 14:11:54 +0300 | [diff] [blame] | 330 | bool migrate_switchover_ack(void) |
| 331 | { |
| 332 | MigrationState *s = migrate_get_current(); |
| 333 | |
| 334 | return s->capabilities[MIGRATION_CAPABILITY_SWITCHOVER_ACK]; |
| 335 | } |
| 336 | |
Juan Quintela | 1f0776f | 2023-03-01 21:18:45 +0100 | [diff] [blame] | 337 | bool migrate_validate_uuid(void) |
| 338 | { |
Juan Quintela | 8f9c532 | 2023-03-01 23:11:08 +0100 | [diff] [blame] | 339 | MigrationState *s = migrate_get_current(); |
Juan Quintela | 1f0776f | 2023-03-01 21:18:45 +0100 | [diff] [blame] | 340 | |
| 341 | return s->capabilities[MIGRATION_CAPABILITY_VALIDATE_UUID]; |
| 342 | } |
| 343 | |
Juan Quintela | 87dca0c | 2023-03-01 22:20:13 +0100 | [diff] [blame] | 344 | bool migrate_xbzrle(void) |
| 345 | { |
Juan Quintela | 8f9c532 | 2023-03-01 23:11:08 +0100 | [diff] [blame] | 346 | MigrationState *s = migrate_get_current(); |
Juan Quintela | 87dca0c | 2023-03-01 22:20:13 +0100 | [diff] [blame] | 347 | |
| 348 | return s->capabilities[MIGRATION_CAPABILITY_XBZRLE]; |
| 349 | } |
| 350 | |
Juan Quintela | 1f0776f | 2023-03-01 21:18:45 +0100 | [diff] [blame] | 351 | bool migrate_zero_blocks(void) |
| 352 | { |
Juan Quintela | 8f9c532 | 2023-03-01 23:11:08 +0100 | [diff] [blame] | 353 | MigrationState *s = migrate_get_current(); |
Juan Quintela | 1f0776f | 2023-03-01 21:18:45 +0100 | [diff] [blame] | 354 | |
| 355 | return s->capabilities[MIGRATION_CAPABILITY_ZERO_BLOCKS]; |
| 356 | } |
Juan Quintela | b4bc342 | 2023-03-01 22:17:14 +0100 | [diff] [blame] | 357 | |
| 358 | bool migrate_zero_copy_send(void) |
| 359 | { |
Juan Quintela | 8f9c532 | 2023-03-01 23:11:08 +0100 | [diff] [blame] | 360 | MigrationState *s = migrate_get_current(); |
Juan Quintela | b4bc342 | 2023-03-01 22:17:14 +0100 | [diff] [blame] | 361 | |
| 362 | return s->capabilities[MIGRATION_CAPABILITY_ZERO_COPY_SEND]; |
| 363 | } |
Juan Quintela | f774fde | 2023-03-02 10:44:20 +0100 | [diff] [blame] | 364 | |
| 365 | /* pseudo capabilities */ |
| 366 | |
Juan Quintela | 77c259a | 2022-06-21 12:13:14 +0200 | [diff] [blame] | 367 | bool migrate_multifd_flush_after_each_section(void) |
| 368 | { |
| 369 | MigrationState *s = migrate_get_current(); |
| 370 | |
Juan Quintela | 294e5a4 | 2022-06-21 13:36:11 +0200 | [diff] [blame] | 371 | return s->multifd_flush_after_each_section; |
Juan Quintela | 77c259a | 2022-06-21 12:13:14 +0200 | [diff] [blame] | 372 | } |
| 373 | |
Juan Quintela | f774fde | 2023-03-02 10:44:20 +0100 | [diff] [blame] | 374 | bool migrate_postcopy(void) |
| 375 | { |
| 376 | return migrate_postcopy_ram() || migrate_dirty_bitmaps(); |
| 377 | } |
| 378 | |
Juan Quintela | 10d4703 | 2023-03-02 10:41:23 +0100 | [diff] [blame] | 379 | bool migrate_tls(void) |
| 380 | { |
Juan Quintela | 8f9c532 | 2023-03-01 23:11:08 +0100 | [diff] [blame] | 381 | MigrationState *s = migrate_get_current(); |
Juan Quintela | 10d4703 | 2023-03-02 10:41:23 +0100 | [diff] [blame] | 382 | |
| 383 | return s->parameters.tls_creds && *s->parameters.tls_creds; |
| 384 | } |
| 385 | |
Juan Quintela | 7760870 | 2023-03-01 23:05:53 +0100 | [diff] [blame] | 386 | typedef enum WriteTrackingSupport { |
| 387 | WT_SUPPORT_UNKNOWN = 0, |
| 388 | WT_SUPPORT_ABSENT, |
| 389 | WT_SUPPORT_AVAILABLE, |
| 390 | WT_SUPPORT_COMPATIBLE |
| 391 | } WriteTrackingSupport; |
| 392 | |
| 393 | static |
| 394 | WriteTrackingSupport migrate_query_write_tracking(void) |
| 395 | { |
| 396 | /* Check if kernel supports required UFFD features */ |
| 397 | if (!ram_write_tracking_available()) { |
| 398 | return WT_SUPPORT_ABSENT; |
| 399 | } |
| 400 | /* |
| 401 | * Check if current memory configuration is |
| 402 | * compatible with required UFFD features. |
| 403 | */ |
| 404 | if (!ram_write_tracking_compatible()) { |
| 405 | return WT_SUPPORT_AVAILABLE; |
| 406 | } |
| 407 | |
| 408 | return WT_SUPPORT_COMPATIBLE; |
| 409 | } |
| 410 | |
| 411 | /* Migration capabilities set */ |
| 412 | struct MigrateCapsSet { |
| 413 | int size; /* Capability set size */ |
| 414 | MigrationCapability caps[]; /* Variadic array of capabilities */ |
| 415 | }; |
| 416 | typedef struct MigrateCapsSet MigrateCapsSet; |
| 417 | |
| 418 | /* Define and initialize MigrateCapsSet */ |
| 419 | #define INITIALIZE_MIGRATE_CAPS_SET(_name, ...) \ |
| 420 | MigrateCapsSet _name = { \ |
| 421 | .size = sizeof((int []) { __VA_ARGS__ }) / sizeof(int), \ |
| 422 | .caps = { __VA_ARGS__ } \ |
| 423 | } |
| 424 | |
| 425 | /* Background-snapshot compatibility check list */ |
| 426 | static const |
| 427 | INITIALIZE_MIGRATE_CAPS_SET(check_caps_background_snapshot, |
| 428 | MIGRATION_CAPABILITY_POSTCOPY_RAM, |
| 429 | MIGRATION_CAPABILITY_DIRTY_BITMAPS, |
| 430 | MIGRATION_CAPABILITY_POSTCOPY_BLOCKTIME, |
| 431 | MIGRATION_CAPABILITY_LATE_BLOCK_ACTIVATE, |
| 432 | MIGRATION_CAPABILITY_RETURN_PATH, |
| 433 | MIGRATION_CAPABILITY_MULTIFD, |
| 434 | MIGRATION_CAPABILITY_PAUSE_BEFORE_SWITCHOVER, |
| 435 | MIGRATION_CAPABILITY_AUTO_CONVERGE, |
| 436 | MIGRATION_CAPABILITY_RELEASE_RAM, |
| 437 | MIGRATION_CAPABILITY_RDMA_PIN_ALL, |
| 438 | MIGRATION_CAPABILITY_COMPRESS, |
| 439 | MIGRATION_CAPABILITY_XBZRLE, |
| 440 | MIGRATION_CAPABILITY_X_COLO, |
| 441 | MIGRATION_CAPABILITY_VALIDATE_UUID, |
| 442 | MIGRATION_CAPABILITY_ZERO_COPY_SEND); |
| 443 | |
Wei Wang | 82137e6 | 2023-06-06 18:19:09 +0800 | [diff] [blame] | 444 | static bool migrate_incoming_started(void) |
| 445 | { |
| 446 | return !!migration_incoming_get_current()->transport_data; |
| 447 | } |
| 448 | |
Juan Quintela | 7760870 | 2023-03-01 23:05:53 +0100 | [diff] [blame] | 449 | /** |
| 450 | * @migration_caps_check - check capability compatibility |
| 451 | * |
| 452 | * @old_caps: old capability list |
| 453 | * @new_caps: new capability list |
| 454 | * @errp: set *errp if the check failed, with reason |
| 455 | * |
| 456 | * Returns true if check passed, otherwise false. |
| 457 | */ |
| 458 | bool migrate_caps_check(bool *old_caps, bool *new_caps, Error **errp) |
| 459 | { |
| 460 | MigrationIncomingState *mis = migration_incoming_get_current(); |
| 461 | |
Peter Xu | 74c38cf | 2023-04-25 21:15:14 -0400 | [diff] [blame] | 462 | ERRP_GUARD(); |
Juan Quintela | 7760870 | 2023-03-01 23:05:53 +0100 | [diff] [blame] | 463 | #ifndef CONFIG_LIVE_BLOCK_MIGRATION |
| 464 | if (new_caps[MIGRATION_CAPABILITY_BLOCK]) { |
| 465 | error_setg(errp, "QEMU compiled without old-style (blk/-b, inc/-i) " |
| 466 | "block migration"); |
| 467 | error_append_hint(errp, "Use drive_mirror+NBD instead.\n"); |
| 468 | return false; |
| 469 | } |
| 470 | #endif |
| 471 | |
| 472 | #ifndef CONFIG_REPLICATION |
| 473 | if (new_caps[MIGRATION_CAPABILITY_X_COLO]) { |
| 474 | error_setg(errp, "QEMU compiled without replication module" |
| 475 | " can't enable COLO"); |
| 476 | error_append_hint(errp, "Please enable replication before COLO.\n"); |
| 477 | return false; |
| 478 | } |
| 479 | #endif |
| 480 | |
| 481 | if (new_caps[MIGRATION_CAPABILITY_POSTCOPY_RAM]) { |
| 482 | /* This check is reasonably expensive, so only when it's being |
| 483 | * set the first time, also it's only the destination that needs |
| 484 | * special support. |
| 485 | */ |
| 486 | if (!old_caps[MIGRATION_CAPABILITY_POSTCOPY_RAM] && |
| 487 | runstate_check(RUN_STATE_INMIGRATE) && |
Peter Xu | 74c38cf | 2023-04-25 21:15:14 -0400 | [diff] [blame] | 488 | !postcopy_ram_supported_by_host(mis, errp)) { |
| 489 | error_prepend(errp, "Postcopy is not supported: "); |
Juan Quintela | 7760870 | 2023-03-01 23:05:53 +0100 | [diff] [blame] | 490 | return false; |
| 491 | } |
| 492 | |
| 493 | if (new_caps[MIGRATION_CAPABILITY_X_IGNORE_SHARED]) { |
| 494 | error_setg(errp, "Postcopy is not compatible with ignore-shared"); |
| 495 | return false; |
| 496 | } |
Leonardo Bras | b405dff | 2023-04-25 00:33:08 -0300 | [diff] [blame] | 497 | |
| 498 | if (new_caps[MIGRATION_CAPABILITY_MULTIFD]) { |
| 499 | error_setg(errp, "Postcopy is not yet compatible with multifd"); |
| 500 | return false; |
| 501 | } |
Juan Quintela | 7760870 | 2023-03-01 23:05:53 +0100 | [diff] [blame] | 502 | } |
| 503 | |
| 504 | if (new_caps[MIGRATION_CAPABILITY_BACKGROUND_SNAPSHOT]) { |
| 505 | WriteTrackingSupport wt_support; |
| 506 | int idx; |
| 507 | /* |
| 508 | * Check if 'background-snapshot' capability is supported by |
| 509 | * host kernel and compatible with guest memory configuration. |
| 510 | */ |
| 511 | wt_support = migrate_query_write_tracking(); |
| 512 | if (wt_support < WT_SUPPORT_AVAILABLE) { |
| 513 | error_setg(errp, "Background-snapshot is not supported by host kernel"); |
| 514 | return false; |
| 515 | } |
| 516 | if (wt_support < WT_SUPPORT_COMPATIBLE) { |
| 517 | error_setg(errp, "Background-snapshot is not compatible " |
| 518 | "with guest memory configuration"); |
| 519 | return false; |
| 520 | } |
| 521 | |
| 522 | /* |
| 523 | * Check if there are any migration capabilities |
| 524 | * incompatible with 'background-snapshot'. |
| 525 | */ |
| 526 | for (idx = 0; idx < check_caps_background_snapshot.size; idx++) { |
| 527 | int incomp_cap = check_caps_background_snapshot.caps[idx]; |
| 528 | if (new_caps[incomp_cap]) { |
| 529 | error_setg(errp, |
| 530 | "Background-snapshot is not compatible with %s", |
| 531 | MigrationCapability_str(incomp_cap)); |
| 532 | return false; |
| 533 | } |
| 534 | } |
| 535 | } |
| 536 | |
| 537 | #ifdef CONFIG_LINUX |
| 538 | if (new_caps[MIGRATION_CAPABILITY_ZERO_COPY_SEND] && |
| 539 | (!new_caps[MIGRATION_CAPABILITY_MULTIFD] || |
| 540 | new_caps[MIGRATION_CAPABILITY_COMPRESS] || |
| 541 | new_caps[MIGRATION_CAPABILITY_XBZRLE] || |
| 542 | migrate_multifd_compression() || |
Juan Quintela | 10d4703 | 2023-03-02 10:41:23 +0100 | [diff] [blame] | 543 | migrate_tls())) { |
Juan Quintela | 7760870 | 2023-03-01 23:05:53 +0100 | [diff] [blame] | 544 | error_setg(errp, |
| 545 | "Zero copy only available for non-compressed non-TLS multifd migration"); |
| 546 | return false; |
| 547 | } |
| 548 | #else |
| 549 | if (new_caps[MIGRATION_CAPABILITY_ZERO_COPY_SEND]) { |
| 550 | error_setg(errp, |
| 551 | "Zero copy currently only available on Linux"); |
| 552 | return false; |
| 553 | } |
| 554 | #endif |
| 555 | |
| 556 | if (new_caps[MIGRATION_CAPABILITY_POSTCOPY_PREEMPT]) { |
| 557 | if (!new_caps[MIGRATION_CAPABILITY_POSTCOPY_RAM]) { |
| 558 | error_setg(errp, "Postcopy preempt requires postcopy-ram"); |
| 559 | return false; |
| 560 | } |
| 561 | |
| 562 | /* |
| 563 | * Preempt mode requires urgent pages to be sent in separate |
| 564 | * channel, OTOH compression logic will disorder all pages into |
| 565 | * different compression channels, which is not compatible with the |
| 566 | * preempt assumptions on channel assignments. |
| 567 | */ |
| 568 | if (new_caps[MIGRATION_CAPABILITY_COMPRESS]) { |
| 569 | error_setg(errp, "Postcopy preempt not compatible with compress"); |
| 570 | return false; |
| 571 | } |
Wei Wang | 82137e6 | 2023-06-06 18:19:09 +0800 | [diff] [blame] | 572 | |
| 573 | if (migrate_incoming_started()) { |
| 574 | error_setg(errp, |
| 575 | "Postcopy preempt must be set before incoming starts"); |
| 576 | return false; |
| 577 | } |
Juan Quintela | 7760870 | 2023-03-01 23:05:53 +0100 | [diff] [blame] | 578 | } |
| 579 | |
| 580 | if (new_caps[MIGRATION_CAPABILITY_MULTIFD]) { |
| 581 | if (new_caps[MIGRATION_CAPABILITY_COMPRESS]) { |
| 582 | error_setg(errp, "Multifd is not compatible with compress"); |
| 583 | return false; |
| 584 | } |
Wei Wang | 82137e6 | 2023-06-06 18:19:09 +0800 | [diff] [blame] | 585 | if (migrate_incoming_started()) { |
| 586 | error_setg(errp, "Multifd must be set before incoming starts"); |
| 587 | return false; |
| 588 | } |
Juan Quintela | 7760870 | 2023-03-01 23:05:53 +0100 | [diff] [blame] | 589 | } |
| 590 | |
Avihai Horon | 6574232 | 2023-06-21 14:11:54 +0300 | [diff] [blame] | 591 | if (new_caps[MIGRATION_CAPABILITY_SWITCHOVER_ACK]) { |
| 592 | if (!new_caps[MIGRATION_CAPABILITY_RETURN_PATH]) { |
| 593 | error_setg(errp, "Capability 'switchover-ack' requires capability " |
| 594 | "'return-path'"); |
| 595 | return false; |
| 596 | } |
Avihai Horon | 6574232 | 2023-06-21 14:11:54 +0300 | [diff] [blame] | 597 | } |
Hyman Huang(黄勇) | dc62395 | 2023-06-07 23:30:50 +0800 | [diff] [blame] | 598 | if (new_caps[MIGRATION_CAPABILITY_DIRTY_LIMIT]) { |
| 599 | if (new_caps[MIGRATION_CAPABILITY_AUTO_CONVERGE]) { |
| 600 | error_setg(errp, "dirty-limit conflicts with auto-converge" |
| 601 | " either of then available currently"); |
| 602 | return false; |
| 603 | } |
| 604 | |
| 605 | if (!kvm_enabled() || !kvm_dirty_ring_enabled()) { |
| 606 | error_setg(errp, "dirty-limit requires KVM with accelerator" |
| 607 | " property 'dirty-ring-size' set"); |
| 608 | return false; |
| 609 | } |
| 610 | } |
Avihai Horon | 6574232 | 2023-06-21 14:11:54 +0300 | [diff] [blame] | 611 | |
Juan Quintela | 7760870 | 2023-03-01 23:05:53 +0100 | [diff] [blame] | 612 | return true; |
| 613 | } |
Juan Quintela | 4d0c6b6 | 2023-03-01 23:15:59 +0100 | [diff] [blame] | 614 | |
Juan Quintela | f80196b | 2023-03-01 23:25:44 +0100 | [diff] [blame] | 615 | bool migrate_cap_set(int cap, bool value, Error **errp) |
| 616 | { |
| 617 | MigrationState *s = migrate_get_current(); |
| 618 | bool new_caps[MIGRATION_CAPABILITY__MAX]; |
| 619 | |
| 620 | if (migration_is_running(s->state)) { |
| 621 | error_setg(errp, QERR_MIGRATION_ACTIVE); |
| 622 | return false; |
| 623 | } |
| 624 | |
| 625 | memcpy(new_caps, s->capabilities, sizeof(new_caps)); |
| 626 | new_caps[cap] = value; |
| 627 | |
| 628 | if (!migrate_caps_check(s->capabilities, new_caps, errp)) { |
| 629 | return false; |
| 630 | } |
| 631 | s->capabilities[cap] = value; |
| 632 | return true; |
| 633 | } |
| 634 | |
Juan Quintela | 4d0c6b6 | 2023-03-01 23:15:59 +0100 | [diff] [blame] | 635 | MigrationCapabilityStatusList *qmp_query_migrate_capabilities(Error **errp) |
| 636 | { |
| 637 | MigrationCapabilityStatusList *head = NULL, **tail = &head; |
| 638 | MigrationCapabilityStatus *caps; |
| 639 | MigrationState *s = migrate_get_current(); |
| 640 | int i; |
| 641 | |
| 642 | for (i = 0; i < MIGRATION_CAPABILITY__MAX; i++) { |
| 643 | #ifndef CONFIG_LIVE_BLOCK_MIGRATION |
| 644 | if (i == MIGRATION_CAPABILITY_BLOCK) { |
| 645 | continue; |
| 646 | } |
| 647 | #endif |
| 648 | caps = g_malloc0(sizeof(*caps)); |
| 649 | caps->capability = i; |
| 650 | caps->state = s->capabilities[i]; |
| 651 | QAPI_LIST_APPEND(tail, caps); |
| 652 | } |
| 653 | |
| 654 | return head; |
| 655 | } |
Juan Quintela | 45c1de1 | 2023-03-01 23:18:02 +0100 | [diff] [blame] | 656 | |
| 657 | void qmp_migrate_set_capabilities(MigrationCapabilityStatusList *params, |
| 658 | Error **errp) |
| 659 | { |
| 660 | MigrationState *s = migrate_get_current(); |
| 661 | MigrationCapabilityStatusList *cap; |
| 662 | bool new_caps[MIGRATION_CAPABILITY__MAX]; |
| 663 | |
Vladimir Sementsov-Ogievskiy | d70178a | 2023-04-28 22:49:27 +0300 | [diff] [blame] | 664 | if (migration_is_running(s->state) || migration_in_colo_state()) { |
Juan Quintela | 45c1de1 | 2023-03-01 23:18:02 +0100 | [diff] [blame] | 665 | error_setg(errp, QERR_MIGRATION_ACTIVE); |
| 666 | return; |
| 667 | } |
| 668 | |
| 669 | memcpy(new_caps, s->capabilities, sizeof(new_caps)); |
| 670 | for (cap = params; cap; cap = cap->next) { |
| 671 | new_caps[cap->value->capability] = cap->value->state; |
| 672 | } |
| 673 | |
| 674 | if (!migrate_caps_check(s->capabilities, new_caps, errp)) { |
| 675 | return; |
| 676 | } |
| 677 | |
| 678 | for (cap = params; cap; cap = cap->next) { |
| 679 | s->capabilities[cap->value->capability] = cap->value->state; |
| 680 | } |
| 681 | } |
Juan Quintela | 1dfc4b9 | 2023-03-02 00:39:03 +0100 | [diff] [blame] | 682 | |
| 683 | /* parameters */ |
| 684 | |
Juan Quintela | b804b35 | 2023-03-02 12:49:16 +0100 | [diff] [blame] | 685 | const BitmapMigrationNodeAliasList *migrate_block_bitmap_mapping(void) |
| 686 | { |
| 687 | MigrationState *s = migrate_get_current(); |
| 688 | |
| 689 | return s->parameters.block_bitmap_mapping; |
| 690 | } |
| 691 | |
Juan Quintela | 3cba22c | 2023-05-03 20:10:36 +0200 | [diff] [blame] | 692 | bool migrate_has_block_bitmap_mapping(void) |
| 693 | { |
| 694 | MigrationState *s = migrate_get_current(); |
| 695 | |
| 696 | return s->parameters.has_block_bitmap_mapping; |
| 697 | } |
| 698 | |
Juan Quintela | 6f8be70 | 2023-03-02 00:49:47 +0100 | [diff] [blame] | 699 | bool migrate_block_incremental(void) |
| 700 | { |
Juan Quintela | 8f9c532 | 2023-03-01 23:11:08 +0100 | [diff] [blame] | 701 | MigrationState *s = migrate_get_current(); |
Juan Quintela | 6f8be70 | 2023-03-02 00:49:47 +0100 | [diff] [blame] | 702 | |
| 703 | return s->parameters.block_incremental; |
| 704 | } |
| 705 | |
Juan Quintela | f94a858 | 2023-03-02 01:04:55 +0100 | [diff] [blame] | 706 | uint32_t migrate_checkpoint_delay(void) |
| 707 | { |
Juan Quintela | 8f9c532 | 2023-03-01 23:11:08 +0100 | [diff] [blame] | 708 | MigrationState *s = migrate_get_current(); |
Juan Quintela | f94a858 | 2023-03-02 01:04:55 +0100 | [diff] [blame] | 709 | |
| 710 | return s->parameters.x_checkpoint_delay; |
| 711 | } |
| 712 | |
Juan Quintela | 1dfc4b9 | 2023-03-02 00:39:03 +0100 | [diff] [blame] | 713 | int migrate_compress_level(void) |
| 714 | { |
Juan Quintela | 8f9c532 | 2023-03-01 23:11:08 +0100 | [diff] [blame] | 715 | MigrationState *s = migrate_get_current(); |
Juan Quintela | 1dfc4b9 | 2023-03-02 00:39:03 +0100 | [diff] [blame] | 716 | |
| 717 | return s->parameters.compress_level; |
| 718 | } |
| 719 | |
| 720 | int migrate_compress_threads(void) |
| 721 | { |
Juan Quintela | 8f9c532 | 2023-03-01 23:11:08 +0100 | [diff] [blame] | 722 | MigrationState *s = migrate_get_current(); |
Juan Quintela | 1dfc4b9 | 2023-03-02 00:39:03 +0100 | [diff] [blame] | 723 | |
| 724 | return s->parameters.compress_threads; |
| 725 | } |
| 726 | |
| 727 | int migrate_compress_wait_thread(void) |
| 728 | { |
Juan Quintela | 8f9c532 | 2023-03-01 23:11:08 +0100 | [diff] [blame] | 729 | MigrationState *s = migrate_get_current(); |
Juan Quintela | 1dfc4b9 | 2023-03-02 00:39:03 +0100 | [diff] [blame] | 730 | |
| 731 | return s->parameters.compress_wait_thread; |
| 732 | } |
| 733 | |
Juan Quintela | 9605c2a | 2023-03-02 10:20:49 +0100 | [diff] [blame] | 734 | uint8_t migrate_cpu_throttle_increment(void) |
| 735 | { |
Juan Quintela | 8f9c532 | 2023-03-01 23:11:08 +0100 | [diff] [blame] | 736 | MigrationState *s = migrate_get_current(); |
Juan Quintela | 9605c2a | 2023-03-02 10:20:49 +0100 | [diff] [blame] | 737 | |
| 738 | return s->parameters.cpu_throttle_increment; |
| 739 | } |
| 740 | |
Juan Quintela | 2a8ec38 | 2023-03-02 01:22:44 +0100 | [diff] [blame] | 741 | uint8_t migrate_cpu_throttle_initial(void) |
| 742 | { |
Juan Quintela | 8f9c532 | 2023-03-01 23:11:08 +0100 | [diff] [blame] | 743 | MigrationState *s = migrate_get_current(); |
Juan Quintela | 2a8ec38 | 2023-03-02 01:22:44 +0100 | [diff] [blame] | 744 | |
| 745 | return s->parameters.cpu_throttle_initial; |
| 746 | } |
| 747 | |
Juan Quintela | 873f674 | 2023-03-02 10:29:51 +0100 | [diff] [blame] | 748 | bool migrate_cpu_throttle_tailslow(void) |
| 749 | { |
Juan Quintela | 8f9c532 | 2023-03-01 23:11:08 +0100 | [diff] [blame] | 750 | MigrationState *s = migrate_get_current(); |
Juan Quintela | 873f674 | 2023-03-02 10:29:51 +0100 | [diff] [blame] | 751 | |
| 752 | return s->parameters.cpu_throttle_tailslow; |
| 753 | } |
| 754 | |
Juan Quintela | 1dfc4b9 | 2023-03-02 00:39:03 +0100 | [diff] [blame] | 755 | int migrate_decompress_threads(void) |
| 756 | { |
Juan Quintela | 8f9c532 | 2023-03-01 23:11:08 +0100 | [diff] [blame] | 757 | MigrationState *s = migrate_get_current(); |
Juan Quintela | 1dfc4b9 | 2023-03-02 00:39:03 +0100 | [diff] [blame] | 758 | |
| 759 | return s->parameters.decompress_threads; |
| 760 | } |
| 761 | |
Juan Quintela | f5da8ba | 2023-03-02 12:00:43 +0100 | [diff] [blame] | 762 | uint64_t migrate_downtime_limit(void) |
| 763 | { |
| 764 | MigrationState *s = migrate_get_current(); |
| 765 | |
| 766 | return s->parameters.downtime_limit; |
| 767 | } |
| 768 | |
Juan Quintela | 24155bd | 2023-03-02 01:13:01 +0100 | [diff] [blame] | 769 | uint8_t migrate_max_cpu_throttle(void) |
| 770 | { |
Juan Quintela | 8f9c532 | 2023-03-01 23:11:08 +0100 | [diff] [blame] | 771 | MigrationState *s = migrate_get_current(); |
Juan Quintela | 24155bd | 2023-03-02 01:13:01 +0100 | [diff] [blame] | 772 | |
| 773 | return s->parameters.max_cpu_throttle; |
| 774 | } |
| 775 | |
Juan Quintela | 9c894df | 2023-03-02 11:00:12 +0100 | [diff] [blame] | 776 | uint64_t migrate_max_bandwidth(void) |
| 777 | { |
Juan Quintela | 8f9c532 | 2023-03-01 23:11:08 +0100 | [diff] [blame] | 778 | MigrationState *s = migrate_get_current(); |
Juan Quintela | 9c894df | 2023-03-02 11:00:12 +0100 | [diff] [blame] | 779 | |
| 780 | return s->parameters.max_bandwidth; |
| 781 | } |
| 782 | |
Juan Quintela | 5203334 | 2023-05-04 13:38:33 +0200 | [diff] [blame] | 783 | uint64_t migrate_max_postcopy_bandwidth(void) |
Juan Quintela | 1dfc4b9 | 2023-03-02 00:39:03 +0100 | [diff] [blame] | 784 | { |
Juan Quintela | 8f9c532 | 2023-03-01 23:11:08 +0100 | [diff] [blame] | 785 | MigrationState *s = migrate_get_current(); |
Juan Quintela | 1dfc4b9 | 2023-03-02 00:39:03 +0100 | [diff] [blame] | 786 | |
| 787 | return s->parameters.max_postcopy_bandwidth; |
| 788 | } |
| 789 | |
| 790 | int migrate_multifd_channels(void) |
| 791 | { |
Juan Quintela | 8f9c532 | 2023-03-01 23:11:08 +0100 | [diff] [blame] | 792 | MigrationState *s = migrate_get_current(); |
Juan Quintela | 1dfc4b9 | 2023-03-02 00:39:03 +0100 | [diff] [blame] | 793 | |
| 794 | return s->parameters.multifd_channels; |
| 795 | } |
| 796 | |
| 797 | MultiFDCompression migrate_multifd_compression(void) |
| 798 | { |
Juan Quintela | 8f9c532 | 2023-03-01 23:11:08 +0100 | [diff] [blame] | 799 | MigrationState *s = migrate_get_current(); |
Juan Quintela | 1dfc4b9 | 2023-03-02 00:39:03 +0100 | [diff] [blame] | 800 | |
| 801 | assert(s->parameters.multifd_compression < MULTIFD_COMPRESSION__MAX); |
| 802 | return s->parameters.multifd_compression; |
| 803 | } |
| 804 | |
| 805 | int migrate_multifd_zlib_level(void) |
| 806 | { |
Juan Quintela | 8f9c532 | 2023-03-01 23:11:08 +0100 | [diff] [blame] | 807 | MigrationState *s = migrate_get_current(); |
Juan Quintela | 1dfc4b9 | 2023-03-02 00:39:03 +0100 | [diff] [blame] | 808 | |
| 809 | return s->parameters.multifd_zlib_level; |
| 810 | } |
| 811 | |
| 812 | int migrate_multifd_zstd_level(void) |
| 813 | { |
Juan Quintela | 8f9c532 | 2023-03-01 23:11:08 +0100 | [diff] [blame] | 814 | MigrationState *s = migrate_get_current(); |
Juan Quintela | 1dfc4b9 | 2023-03-02 00:39:03 +0100 | [diff] [blame] | 815 | |
| 816 | return s->parameters.multifd_zstd_level; |
| 817 | } |
| 818 | |
Juan Quintela | 6499efd | 2023-03-02 00:59:13 +0100 | [diff] [blame] | 819 | uint8_t migrate_throttle_trigger_threshold(void) |
| 820 | { |
Juan Quintela | 8f9c532 | 2023-03-01 23:11:08 +0100 | [diff] [blame] | 821 | MigrationState *s = migrate_get_current(); |
Juan Quintela | 6499efd | 2023-03-02 00:59:13 +0100 | [diff] [blame] | 822 | |
| 823 | return s->parameters.throttle_trigger_threshold; |
| 824 | } |
| 825 | |
Juan Quintela | 2eb0308 | 2023-03-02 12:33:50 +0100 | [diff] [blame] | 826 | const char *migrate_tls_authz(void) |
| 827 | { |
| 828 | MigrationState *s = migrate_get_current(); |
| 829 | |
| 830 | return s->parameters.tls_authz; |
| 831 | } |
| 832 | |
Juan Quintela | d5c3e19 | 2023-03-02 12:17:06 +0100 | [diff] [blame] | 833 | const char *migrate_tls_creds(void) |
| 834 | { |
| 835 | MigrationState *s = migrate_get_current(); |
| 836 | |
| 837 | return s->parameters.tls_creds; |
| 838 | } |
| 839 | |
Juan Quintela | 1f2f366 | 2023-03-02 12:37:21 +0100 | [diff] [blame] | 840 | const char *migrate_tls_hostname(void) |
| 841 | { |
| 842 | MigrationState *s = migrate_get_current(); |
| 843 | |
| 844 | return s->parameters.tls_hostname; |
| 845 | } |
| 846 | |
Juan Quintela | 1dfc4b9 | 2023-03-02 00:39:03 +0100 | [diff] [blame] | 847 | uint64_t migrate_xbzrle_cache_size(void) |
| 848 | { |
Juan Quintela | 8f9c532 | 2023-03-01 23:11:08 +0100 | [diff] [blame] | 849 | MigrationState *s = migrate_get_current(); |
Juan Quintela | 1dfc4b9 | 2023-03-02 00:39:03 +0100 | [diff] [blame] | 850 | |
| 851 | return s->parameters.xbzrle_cache_size; |
| 852 | } |
Juan Quintela | 2682c4e | 2023-03-02 01:17:23 +0100 | [diff] [blame] | 853 | |
Juan Quintela | 87c2290 | 2023-03-02 12:05:03 +0100 | [diff] [blame] | 854 | /* parameter setters */ |
| 855 | |
| 856 | void migrate_set_block_incremental(bool value) |
| 857 | { |
| 858 | MigrationState *s = migrate_get_current(); |
| 859 | |
| 860 | s->parameters.block_incremental = value; |
| 861 | } |
| 862 | |
Juan Quintela | 2682c4e | 2023-03-02 01:17:23 +0100 | [diff] [blame] | 863 | /* parameters helpers */ |
| 864 | |
Juan Quintela | b1a8795 | 2023-03-02 12:10:33 +0100 | [diff] [blame] | 865 | void block_cleanup_parameters(void) |
Juan Quintela | b7b7312 | 2023-03-02 12:08:45 +0100 | [diff] [blame] | 866 | { |
Juan Quintela | b1a8795 | 2023-03-02 12:10:33 +0100 | [diff] [blame] | 867 | MigrationState *s = migrate_get_current(); |
| 868 | |
Juan Quintela | b7b7312 | 2023-03-02 12:08:45 +0100 | [diff] [blame] | 869 | if (s->must_remove_block_options) { |
| 870 | /* setting to false can never fail */ |
| 871 | migrate_cap_set(MIGRATION_CAPABILITY_BLOCK, false, &error_abort); |
| 872 | migrate_set_block_incremental(false); |
| 873 | s->must_remove_block_options = false; |
| 874 | } |
| 875 | } |
| 876 | |
Juan Quintela | 2682c4e | 2023-03-02 01:17:23 +0100 | [diff] [blame] | 877 | AnnounceParameters *migrate_announce_params(void) |
| 878 | { |
| 879 | static AnnounceParameters ap; |
| 880 | |
| 881 | MigrationState *s = migrate_get_current(); |
| 882 | |
| 883 | ap.initial = s->parameters.announce_initial; |
| 884 | ap.max = s->parameters.announce_max; |
| 885 | ap.rounds = s->parameters.announce_rounds; |
| 886 | ap.step = s->parameters.announce_step; |
| 887 | |
| 888 | return ≈ |
| 889 | } |
Juan Quintela | 9c894df | 2023-03-02 11:00:12 +0100 | [diff] [blame] | 890 | |
| 891 | MigrationParameters *qmp_query_migrate_parameters(Error **errp) |
| 892 | { |
| 893 | MigrationParameters *params; |
| 894 | MigrationState *s = migrate_get_current(); |
| 895 | |
| 896 | /* TODO use QAPI_CLONE() instead of duplicating it inline */ |
| 897 | params = g_malloc0(sizeof(*params)); |
| 898 | params->has_compress_level = true; |
| 899 | params->compress_level = s->parameters.compress_level; |
| 900 | params->has_compress_threads = true; |
| 901 | params->compress_threads = s->parameters.compress_threads; |
| 902 | params->has_compress_wait_thread = true; |
| 903 | params->compress_wait_thread = s->parameters.compress_wait_thread; |
| 904 | params->has_decompress_threads = true; |
| 905 | params->decompress_threads = s->parameters.decompress_threads; |
| 906 | params->has_throttle_trigger_threshold = true; |
| 907 | params->throttle_trigger_threshold = s->parameters.throttle_trigger_threshold; |
| 908 | params->has_cpu_throttle_initial = true; |
| 909 | params->cpu_throttle_initial = s->parameters.cpu_throttle_initial; |
| 910 | params->has_cpu_throttle_increment = true; |
| 911 | params->cpu_throttle_increment = s->parameters.cpu_throttle_increment; |
| 912 | params->has_cpu_throttle_tailslow = true; |
| 913 | params->cpu_throttle_tailslow = s->parameters.cpu_throttle_tailslow; |
| 914 | params->tls_creds = g_strdup(s->parameters.tls_creds); |
| 915 | params->tls_hostname = g_strdup(s->parameters.tls_hostname); |
| 916 | params->tls_authz = g_strdup(s->parameters.tls_authz ? |
| 917 | s->parameters.tls_authz : ""); |
| 918 | params->has_max_bandwidth = true; |
| 919 | params->max_bandwidth = s->parameters.max_bandwidth; |
| 920 | params->has_downtime_limit = true; |
| 921 | params->downtime_limit = s->parameters.downtime_limit; |
| 922 | params->has_x_checkpoint_delay = true; |
| 923 | params->x_checkpoint_delay = s->parameters.x_checkpoint_delay; |
| 924 | params->has_block_incremental = true; |
| 925 | params->block_incremental = s->parameters.block_incremental; |
| 926 | params->has_multifd_channels = true; |
| 927 | params->multifd_channels = s->parameters.multifd_channels; |
| 928 | params->has_multifd_compression = true; |
| 929 | params->multifd_compression = s->parameters.multifd_compression; |
| 930 | params->has_multifd_zlib_level = true; |
| 931 | params->multifd_zlib_level = s->parameters.multifd_zlib_level; |
| 932 | params->has_multifd_zstd_level = true; |
| 933 | params->multifd_zstd_level = s->parameters.multifd_zstd_level; |
| 934 | params->has_xbzrle_cache_size = true; |
| 935 | params->xbzrle_cache_size = s->parameters.xbzrle_cache_size; |
| 936 | params->has_max_postcopy_bandwidth = true; |
| 937 | params->max_postcopy_bandwidth = s->parameters.max_postcopy_bandwidth; |
| 938 | params->has_max_cpu_throttle = true; |
| 939 | params->max_cpu_throttle = s->parameters.max_cpu_throttle; |
| 940 | params->has_announce_initial = true; |
| 941 | params->announce_initial = s->parameters.announce_initial; |
| 942 | params->has_announce_max = true; |
| 943 | params->announce_max = s->parameters.announce_max; |
| 944 | params->has_announce_rounds = true; |
| 945 | params->announce_rounds = s->parameters.announce_rounds; |
| 946 | params->has_announce_step = true; |
| 947 | params->announce_step = s->parameters.announce_step; |
| 948 | |
| 949 | if (s->parameters.has_block_bitmap_mapping) { |
| 950 | params->has_block_bitmap_mapping = true; |
| 951 | params->block_bitmap_mapping = |
| 952 | QAPI_CLONE(BitmapMigrationNodeAliasList, |
| 953 | s->parameters.block_bitmap_mapping); |
| 954 | } |
| 955 | |
Hyman Huang(黄勇) | 4d80785 | 2023-06-07 21:32:59 +0800 | [diff] [blame] | 956 | params->has_x_vcpu_dirty_limit_period = true; |
| 957 | params->x_vcpu_dirty_limit_period = s->parameters.x_vcpu_dirty_limit_period; |
Hyman Huang(黄勇) | 09f9ec9 | 2023-06-07 22:58:32 +0800 | [diff] [blame] | 958 | params->has_vcpu_dirty_limit = true; |
| 959 | params->vcpu_dirty_limit = s->parameters.vcpu_dirty_limit; |
Hyman Huang(黄勇) | 4d80785 | 2023-06-07 21:32:59 +0800 | [diff] [blame] | 960 | |
Juan Quintela | 9c894df | 2023-03-02 11:00:12 +0100 | [diff] [blame] | 961 | return params; |
| 962 | } |
Juan Quintela | 09d6c96 | 2023-03-02 10:13:16 +0100 | [diff] [blame] | 963 | |
Juan Quintela | 61a174e | 2023-03-02 10:35:24 +0100 | [diff] [blame] | 964 | void migrate_params_init(MigrationParameters *params) |
| 965 | { |
| 966 | params->tls_hostname = g_strdup(""); |
| 967 | params->tls_creds = g_strdup(""); |
| 968 | |
| 969 | /* Set has_* up only for parameter checks */ |
| 970 | params->has_compress_level = true; |
| 971 | params->has_compress_threads = true; |
| 972 | params->has_compress_wait_thread = true; |
| 973 | params->has_decompress_threads = true; |
| 974 | params->has_throttle_trigger_threshold = true; |
| 975 | params->has_cpu_throttle_initial = true; |
| 976 | params->has_cpu_throttle_increment = true; |
| 977 | params->has_cpu_throttle_tailslow = true; |
| 978 | params->has_max_bandwidth = true; |
| 979 | params->has_downtime_limit = true; |
| 980 | params->has_x_checkpoint_delay = true; |
| 981 | params->has_block_incremental = true; |
| 982 | params->has_multifd_channels = true; |
| 983 | params->has_multifd_compression = true; |
| 984 | params->has_multifd_zlib_level = true; |
| 985 | params->has_multifd_zstd_level = true; |
| 986 | params->has_xbzrle_cache_size = true; |
| 987 | params->has_max_postcopy_bandwidth = true; |
| 988 | params->has_max_cpu_throttle = true; |
| 989 | params->has_announce_initial = true; |
| 990 | params->has_announce_max = true; |
| 991 | params->has_announce_rounds = true; |
| 992 | params->has_announce_step = true; |
Hyman Huang(黄勇) | 4d80785 | 2023-06-07 21:32:59 +0800 | [diff] [blame] | 993 | params->has_x_vcpu_dirty_limit_period = true; |
Hyman Huang(黄勇) | 09f9ec9 | 2023-06-07 22:58:32 +0800 | [diff] [blame] | 994 | params->has_vcpu_dirty_limit = true; |
Juan Quintela | 61a174e | 2023-03-02 10:35:24 +0100 | [diff] [blame] | 995 | } |
| 996 | |
Juan Quintela | 09d6c96 | 2023-03-02 10:13:16 +0100 | [diff] [blame] | 997 | /* |
| 998 | * Check whether the parameters are valid. Error will be put into errp |
| 999 | * (if provided). Return true if valid, otherwise false. |
| 1000 | */ |
| 1001 | bool migrate_params_check(MigrationParameters *params, Error **errp) |
| 1002 | { |
| 1003 | if (params->has_compress_level && |
| 1004 | (params->compress_level > 9)) { |
| 1005 | error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "compress_level", |
| 1006 | "a value between 0 and 9"); |
| 1007 | return false; |
| 1008 | } |
| 1009 | |
| 1010 | if (params->has_compress_threads && (params->compress_threads < 1)) { |
| 1011 | error_setg(errp, QERR_INVALID_PARAMETER_VALUE, |
| 1012 | "compress_threads", |
| 1013 | "a value between 1 and 255"); |
| 1014 | return false; |
| 1015 | } |
| 1016 | |
| 1017 | if (params->has_decompress_threads && (params->decompress_threads < 1)) { |
| 1018 | error_setg(errp, QERR_INVALID_PARAMETER_VALUE, |
| 1019 | "decompress_threads", |
| 1020 | "a value between 1 and 255"); |
| 1021 | return false; |
| 1022 | } |
| 1023 | |
| 1024 | if (params->has_throttle_trigger_threshold && |
| 1025 | (params->throttle_trigger_threshold < 1 || |
| 1026 | params->throttle_trigger_threshold > 100)) { |
| 1027 | error_setg(errp, QERR_INVALID_PARAMETER_VALUE, |
| 1028 | "throttle_trigger_threshold", |
| 1029 | "an integer in the range of 1 to 100"); |
| 1030 | return false; |
| 1031 | } |
| 1032 | |
| 1033 | if (params->has_cpu_throttle_initial && |
| 1034 | (params->cpu_throttle_initial < 1 || |
| 1035 | params->cpu_throttle_initial > 99)) { |
| 1036 | error_setg(errp, QERR_INVALID_PARAMETER_VALUE, |
| 1037 | "cpu_throttle_initial", |
| 1038 | "an integer in the range of 1 to 99"); |
| 1039 | return false; |
| 1040 | } |
| 1041 | |
| 1042 | if (params->has_cpu_throttle_increment && |
| 1043 | (params->cpu_throttle_increment < 1 || |
| 1044 | params->cpu_throttle_increment > 99)) { |
| 1045 | error_setg(errp, QERR_INVALID_PARAMETER_VALUE, |
| 1046 | "cpu_throttle_increment", |
| 1047 | "an integer in the range of 1 to 99"); |
| 1048 | return false; |
| 1049 | } |
| 1050 | |
| 1051 | if (params->has_max_bandwidth && (params->max_bandwidth > SIZE_MAX)) { |
| 1052 | error_setg(errp, QERR_INVALID_PARAMETER_VALUE, |
| 1053 | "max_bandwidth", |
| 1054 | "an integer in the range of 0 to "stringify(SIZE_MAX) |
| 1055 | " bytes/second"); |
| 1056 | return false; |
| 1057 | } |
| 1058 | |
| 1059 | if (params->has_downtime_limit && |
| 1060 | (params->downtime_limit > MAX_MIGRATE_DOWNTIME)) { |
| 1061 | error_setg(errp, QERR_INVALID_PARAMETER_VALUE, |
| 1062 | "downtime_limit", |
| 1063 | "an integer in the range of 0 to " |
| 1064 | stringify(MAX_MIGRATE_DOWNTIME)" ms"); |
| 1065 | return false; |
| 1066 | } |
| 1067 | |
| 1068 | /* x_checkpoint_delay is now always positive */ |
| 1069 | |
| 1070 | if (params->has_multifd_channels && (params->multifd_channels < 1)) { |
| 1071 | error_setg(errp, QERR_INVALID_PARAMETER_VALUE, |
| 1072 | "multifd_channels", |
| 1073 | "a value between 1 and 255"); |
| 1074 | return false; |
| 1075 | } |
| 1076 | |
| 1077 | if (params->has_multifd_zlib_level && |
| 1078 | (params->multifd_zlib_level > 9)) { |
| 1079 | error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "multifd_zlib_level", |
| 1080 | "a value between 0 and 9"); |
| 1081 | return false; |
| 1082 | } |
| 1083 | |
| 1084 | if (params->has_multifd_zstd_level && |
| 1085 | (params->multifd_zstd_level > 20)) { |
| 1086 | error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "multifd_zstd_level", |
| 1087 | "a value between 0 and 20"); |
| 1088 | return false; |
| 1089 | } |
| 1090 | |
| 1091 | if (params->has_xbzrle_cache_size && |
| 1092 | (params->xbzrle_cache_size < qemu_target_page_size() || |
| 1093 | !is_power_of_2(params->xbzrle_cache_size))) { |
| 1094 | error_setg(errp, QERR_INVALID_PARAMETER_VALUE, |
| 1095 | "xbzrle_cache_size", |
| 1096 | "a power of two no less than the target page size"); |
| 1097 | return false; |
| 1098 | } |
| 1099 | |
| 1100 | if (params->has_max_cpu_throttle && |
| 1101 | (params->max_cpu_throttle < params->cpu_throttle_initial || |
| 1102 | params->max_cpu_throttle > 99)) { |
| 1103 | error_setg(errp, QERR_INVALID_PARAMETER_VALUE, |
| 1104 | "max_cpu_throttle", |
| 1105 | "an integer in the range of cpu_throttle_initial to 99"); |
| 1106 | return false; |
| 1107 | } |
| 1108 | |
| 1109 | if (params->has_announce_initial && |
| 1110 | params->announce_initial > 100000) { |
| 1111 | error_setg(errp, QERR_INVALID_PARAMETER_VALUE, |
| 1112 | "announce_initial", |
| 1113 | "a value between 0 and 100000"); |
| 1114 | return false; |
| 1115 | } |
| 1116 | if (params->has_announce_max && |
| 1117 | params->announce_max > 100000) { |
| 1118 | error_setg(errp, QERR_INVALID_PARAMETER_VALUE, |
| 1119 | "announce_max", |
| 1120 | "a value between 0 and 100000"); |
| 1121 | return false; |
| 1122 | } |
| 1123 | if (params->has_announce_rounds && |
| 1124 | params->announce_rounds > 1000) { |
| 1125 | error_setg(errp, QERR_INVALID_PARAMETER_VALUE, |
| 1126 | "announce_rounds", |
| 1127 | "a value between 0 and 1000"); |
| 1128 | return false; |
| 1129 | } |
| 1130 | if (params->has_announce_step && |
| 1131 | (params->announce_step < 1 || |
| 1132 | params->announce_step > 10000)) { |
| 1133 | error_setg(errp, QERR_INVALID_PARAMETER_VALUE, |
| 1134 | "announce_step", |
| 1135 | "a value between 0 and 10000"); |
| 1136 | return false; |
| 1137 | } |
| 1138 | |
| 1139 | if (params->has_block_bitmap_mapping && |
| 1140 | !check_dirty_bitmap_mig_alias_map(params->block_bitmap_mapping, errp)) { |
| 1141 | error_prepend(errp, "Invalid mapping given for block-bitmap-mapping: "); |
| 1142 | return false; |
| 1143 | } |
| 1144 | |
| 1145 | #ifdef CONFIG_LINUX |
| 1146 | if (migrate_zero_copy_send() && |
| 1147 | ((params->has_multifd_compression && params->multifd_compression) || |
| 1148 | (params->tls_creds && *params->tls_creds))) { |
| 1149 | error_setg(errp, |
| 1150 | "Zero copy only available for non-compressed non-TLS multifd migration"); |
| 1151 | return false; |
| 1152 | } |
| 1153 | #endif |
| 1154 | |
Hyman Huang(黄勇) | 4d80785 | 2023-06-07 21:32:59 +0800 | [diff] [blame] | 1155 | if (params->has_x_vcpu_dirty_limit_period && |
| 1156 | (params->x_vcpu_dirty_limit_period < 1 || |
| 1157 | params->x_vcpu_dirty_limit_period > 1000)) { |
| 1158 | error_setg(errp, QERR_INVALID_PARAMETER_VALUE, |
| 1159 | "x-vcpu-dirty-limit-period", |
| 1160 | "a value between 1 and 1000"); |
| 1161 | return false; |
| 1162 | } |
| 1163 | |
Hyman Huang(黄勇) | 09f9ec9 | 2023-06-07 22:58:32 +0800 | [diff] [blame] | 1164 | if (params->has_vcpu_dirty_limit && |
| 1165 | (params->vcpu_dirty_limit < 1)) { |
| 1166 | error_setg(errp, QERR_INVALID_PARAMETER_VALUE, |
| 1167 | "vcpu_dirty_limit", |
| 1168 | "is invalid, it must greater then 1 MB/s"); |
| 1169 | return false; |
| 1170 | } |
| 1171 | |
Juan Quintela | 09d6c96 | 2023-03-02 10:13:16 +0100 | [diff] [blame] | 1172 | return true; |
| 1173 | } |
| 1174 | |
| 1175 | static void migrate_params_test_apply(MigrateSetParameters *params, |
| 1176 | MigrationParameters *dest) |
| 1177 | { |
| 1178 | *dest = migrate_get_current()->parameters; |
| 1179 | |
| 1180 | /* TODO use QAPI_CLONE() instead of duplicating it inline */ |
| 1181 | |
| 1182 | if (params->has_compress_level) { |
| 1183 | dest->compress_level = params->compress_level; |
| 1184 | } |
| 1185 | |
| 1186 | if (params->has_compress_threads) { |
| 1187 | dest->compress_threads = params->compress_threads; |
| 1188 | } |
| 1189 | |
| 1190 | if (params->has_compress_wait_thread) { |
| 1191 | dest->compress_wait_thread = params->compress_wait_thread; |
| 1192 | } |
| 1193 | |
| 1194 | if (params->has_decompress_threads) { |
| 1195 | dest->decompress_threads = params->decompress_threads; |
| 1196 | } |
| 1197 | |
| 1198 | if (params->has_throttle_trigger_threshold) { |
| 1199 | dest->throttle_trigger_threshold = params->throttle_trigger_threshold; |
| 1200 | } |
| 1201 | |
| 1202 | if (params->has_cpu_throttle_initial) { |
| 1203 | dest->cpu_throttle_initial = params->cpu_throttle_initial; |
| 1204 | } |
| 1205 | |
| 1206 | if (params->has_cpu_throttle_increment) { |
| 1207 | dest->cpu_throttle_increment = params->cpu_throttle_increment; |
| 1208 | } |
| 1209 | |
| 1210 | if (params->has_cpu_throttle_tailslow) { |
| 1211 | dest->cpu_throttle_tailslow = params->cpu_throttle_tailslow; |
| 1212 | } |
| 1213 | |
| 1214 | if (params->tls_creds) { |
| 1215 | assert(params->tls_creds->type == QTYPE_QSTRING); |
| 1216 | dest->tls_creds = params->tls_creds->u.s; |
| 1217 | } |
| 1218 | |
| 1219 | if (params->tls_hostname) { |
| 1220 | assert(params->tls_hostname->type == QTYPE_QSTRING); |
| 1221 | dest->tls_hostname = params->tls_hostname->u.s; |
| 1222 | } |
| 1223 | |
| 1224 | if (params->has_max_bandwidth) { |
| 1225 | dest->max_bandwidth = params->max_bandwidth; |
| 1226 | } |
| 1227 | |
| 1228 | if (params->has_downtime_limit) { |
| 1229 | dest->downtime_limit = params->downtime_limit; |
| 1230 | } |
| 1231 | |
| 1232 | if (params->has_x_checkpoint_delay) { |
| 1233 | dest->x_checkpoint_delay = params->x_checkpoint_delay; |
| 1234 | } |
| 1235 | |
| 1236 | if (params->has_block_incremental) { |
| 1237 | dest->block_incremental = params->block_incremental; |
| 1238 | } |
| 1239 | if (params->has_multifd_channels) { |
| 1240 | dest->multifd_channels = params->multifd_channels; |
| 1241 | } |
| 1242 | if (params->has_multifd_compression) { |
| 1243 | dest->multifd_compression = params->multifd_compression; |
| 1244 | } |
| 1245 | if (params->has_xbzrle_cache_size) { |
| 1246 | dest->xbzrle_cache_size = params->xbzrle_cache_size; |
| 1247 | } |
| 1248 | if (params->has_max_postcopy_bandwidth) { |
| 1249 | dest->max_postcopy_bandwidth = params->max_postcopy_bandwidth; |
| 1250 | } |
| 1251 | if (params->has_max_cpu_throttle) { |
| 1252 | dest->max_cpu_throttle = params->max_cpu_throttle; |
| 1253 | } |
| 1254 | if (params->has_announce_initial) { |
| 1255 | dest->announce_initial = params->announce_initial; |
| 1256 | } |
| 1257 | if (params->has_announce_max) { |
| 1258 | dest->announce_max = params->announce_max; |
| 1259 | } |
| 1260 | if (params->has_announce_rounds) { |
| 1261 | dest->announce_rounds = params->announce_rounds; |
| 1262 | } |
| 1263 | if (params->has_announce_step) { |
| 1264 | dest->announce_step = params->announce_step; |
| 1265 | } |
| 1266 | |
| 1267 | if (params->has_block_bitmap_mapping) { |
| 1268 | dest->has_block_bitmap_mapping = true; |
| 1269 | dest->block_bitmap_mapping = params->block_bitmap_mapping; |
| 1270 | } |
Hyman Huang(黄勇) | 4d80785 | 2023-06-07 21:32:59 +0800 | [diff] [blame] | 1271 | |
| 1272 | if (params->has_x_vcpu_dirty_limit_period) { |
| 1273 | dest->x_vcpu_dirty_limit_period = |
| 1274 | params->x_vcpu_dirty_limit_period; |
| 1275 | } |
Hyman Huang(黄勇) | 09f9ec9 | 2023-06-07 22:58:32 +0800 | [diff] [blame] | 1276 | if (params->has_vcpu_dirty_limit) { |
| 1277 | dest->vcpu_dirty_limit = params->vcpu_dirty_limit; |
| 1278 | } |
Juan Quintela | 09d6c96 | 2023-03-02 10:13:16 +0100 | [diff] [blame] | 1279 | } |
| 1280 | |
| 1281 | static void migrate_params_apply(MigrateSetParameters *params, Error **errp) |
| 1282 | { |
| 1283 | MigrationState *s = migrate_get_current(); |
| 1284 | |
| 1285 | /* TODO use QAPI_CLONE() instead of duplicating it inline */ |
| 1286 | |
| 1287 | if (params->has_compress_level) { |
| 1288 | s->parameters.compress_level = params->compress_level; |
| 1289 | } |
| 1290 | |
| 1291 | if (params->has_compress_threads) { |
| 1292 | s->parameters.compress_threads = params->compress_threads; |
| 1293 | } |
| 1294 | |
| 1295 | if (params->has_compress_wait_thread) { |
| 1296 | s->parameters.compress_wait_thread = params->compress_wait_thread; |
| 1297 | } |
| 1298 | |
| 1299 | if (params->has_decompress_threads) { |
| 1300 | s->parameters.decompress_threads = params->decompress_threads; |
| 1301 | } |
| 1302 | |
| 1303 | if (params->has_throttle_trigger_threshold) { |
| 1304 | s->parameters.throttle_trigger_threshold = params->throttle_trigger_threshold; |
| 1305 | } |
| 1306 | |
| 1307 | if (params->has_cpu_throttle_initial) { |
| 1308 | s->parameters.cpu_throttle_initial = params->cpu_throttle_initial; |
| 1309 | } |
| 1310 | |
| 1311 | if (params->has_cpu_throttle_increment) { |
| 1312 | s->parameters.cpu_throttle_increment = params->cpu_throttle_increment; |
| 1313 | } |
| 1314 | |
| 1315 | if (params->has_cpu_throttle_tailslow) { |
| 1316 | s->parameters.cpu_throttle_tailslow = params->cpu_throttle_tailslow; |
| 1317 | } |
| 1318 | |
| 1319 | if (params->tls_creds) { |
| 1320 | g_free(s->parameters.tls_creds); |
| 1321 | assert(params->tls_creds->type == QTYPE_QSTRING); |
| 1322 | s->parameters.tls_creds = g_strdup(params->tls_creds->u.s); |
| 1323 | } |
| 1324 | |
| 1325 | if (params->tls_hostname) { |
| 1326 | g_free(s->parameters.tls_hostname); |
| 1327 | assert(params->tls_hostname->type == QTYPE_QSTRING); |
| 1328 | s->parameters.tls_hostname = g_strdup(params->tls_hostname->u.s); |
| 1329 | } |
| 1330 | |
| 1331 | if (params->tls_authz) { |
| 1332 | g_free(s->parameters.tls_authz); |
| 1333 | assert(params->tls_authz->type == QTYPE_QSTRING); |
| 1334 | s->parameters.tls_authz = g_strdup(params->tls_authz->u.s); |
| 1335 | } |
| 1336 | |
| 1337 | if (params->has_max_bandwidth) { |
| 1338 | s->parameters.max_bandwidth = params->max_bandwidth; |
| 1339 | if (s->to_dst_file && !migration_in_postcopy()) { |
Juan Quintela | e1fde0e | 2023-05-15 21:56:58 +0200 | [diff] [blame] | 1340 | migration_rate_set(s->parameters.max_bandwidth); |
Juan Quintela | 09d6c96 | 2023-03-02 10:13:16 +0100 | [diff] [blame] | 1341 | } |
| 1342 | } |
| 1343 | |
| 1344 | if (params->has_downtime_limit) { |
| 1345 | s->parameters.downtime_limit = params->downtime_limit; |
| 1346 | } |
| 1347 | |
| 1348 | if (params->has_x_checkpoint_delay) { |
| 1349 | s->parameters.x_checkpoint_delay = params->x_checkpoint_delay; |
Vladimir Sementsov-Ogievskiy | 4332ffc | 2023-04-28 22:49:20 +0300 | [diff] [blame] | 1350 | colo_checkpoint_delay_set(); |
Juan Quintela | 09d6c96 | 2023-03-02 10:13:16 +0100 | [diff] [blame] | 1351 | } |
| 1352 | |
| 1353 | if (params->has_block_incremental) { |
| 1354 | s->parameters.block_incremental = params->block_incremental; |
| 1355 | } |
| 1356 | if (params->has_multifd_channels) { |
| 1357 | s->parameters.multifd_channels = params->multifd_channels; |
| 1358 | } |
| 1359 | if (params->has_multifd_compression) { |
| 1360 | s->parameters.multifd_compression = params->multifd_compression; |
| 1361 | } |
| 1362 | if (params->has_xbzrle_cache_size) { |
| 1363 | s->parameters.xbzrle_cache_size = params->xbzrle_cache_size; |
| 1364 | xbzrle_cache_resize(params->xbzrle_cache_size, errp); |
| 1365 | } |
| 1366 | if (params->has_max_postcopy_bandwidth) { |
| 1367 | s->parameters.max_postcopy_bandwidth = params->max_postcopy_bandwidth; |
| 1368 | if (s->to_dst_file && migration_in_postcopy()) { |
Juan Quintela | e1fde0e | 2023-05-15 21:56:58 +0200 | [diff] [blame] | 1369 | migration_rate_set(s->parameters.max_postcopy_bandwidth); |
Juan Quintela | 09d6c96 | 2023-03-02 10:13:16 +0100 | [diff] [blame] | 1370 | } |
| 1371 | } |
| 1372 | if (params->has_max_cpu_throttle) { |
| 1373 | s->parameters.max_cpu_throttle = params->max_cpu_throttle; |
| 1374 | } |
| 1375 | if (params->has_announce_initial) { |
| 1376 | s->parameters.announce_initial = params->announce_initial; |
| 1377 | } |
| 1378 | if (params->has_announce_max) { |
| 1379 | s->parameters.announce_max = params->announce_max; |
| 1380 | } |
| 1381 | if (params->has_announce_rounds) { |
| 1382 | s->parameters.announce_rounds = params->announce_rounds; |
| 1383 | } |
| 1384 | if (params->has_announce_step) { |
| 1385 | s->parameters.announce_step = params->announce_step; |
| 1386 | } |
| 1387 | |
| 1388 | if (params->has_block_bitmap_mapping) { |
| 1389 | qapi_free_BitmapMigrationNodeAliasList( |
| 1390 | s->parameters.block_bitmap_mapping); |
| 1391 | |
| 1392 | s->parameters.has_block_bitmap_mapping = true; |
| 1393 | s->parameters.block_bitmap_mapping = |
| 1394 | QAPI_CLONE(BitmapMigrationNodeAliasList, |
| 1395 | params->block_bitmap_mapping); |
| 1396 | } |
Hyman Huang(黄勇) | 4d80785 | 2023-06-07 21:32:59 +0800 | [diff] [blame] | 1397 | |
| 1398 | if (params->has_x_vcpu_dirty_limit_period) { |
| 1399 | s->parameters.x_vcpu_dirty_limit_period = |
| 1400 | params->x_vcpu_dirty_limit_period; |
| 1401 | } |
Hyman Huang(黄勇) | 09f9ec9 | 2023-06-07 22:58:32 +0800 | [diff] [blame] | 1402 | if (params->has_vcpu_dirty_limit) { |
| 1403 | s->parameters.vcpu_dirty_limit = params->vcpu_dirty_limit; |
| 1404 | } |
Juan Quintela | 09d6c96 | 2023-03-02 10:13:16 +0100 | [diff] [blame] | 1405 | } |
| 1406 | |
| 1407 | void qmp_migrate_set_parameters(MigrateSetParameters *params, Error **errp) |
| 1408 | { |
| 1409 | MigrationParameters tmp; |
| 1410 | |
Peter Xu | 86dec71 | 2023-09-05 12:23:32 -0400 | [diff] [blame] | 1411 | /* TODO Rewrite "" to null instead for all three tls_* parameters */ |
Juan Quintela | 09d6c96 | 2023-03-02 10:13:16 +0100 | [diff] [blame] | 1412 | if (params->tls_creds |
| 1413 | && params->tls_creds->type == QTYPE_QNULL) { |
| 1414 | qobject_unref(params->tls_creds->u.n); |
| 1415 | params->tls_creds->type = QTYPE_QSTRING; |
| 1416 | params->tls_creds->u.s = strdup(""); |
| 1417 | } |
Juan Quintela | 09d6c96 | 2023-03-02 10:13:16 +0100 | [diff] [blame] | 1418 | if (params->tls_hostname |
| 1419 | && params->tls_hostname->type == QTYPE_QNULL) { |
| 1420 | qobject_unref(params->tls_hostname->u.n); |
| 1421 | params->tls_hostname->type = QTYPE_QSTRING; |
| 1422 | params->tls_hostname->u.s = strdup(""); |
| 1423 | } |
Peter Xu | 86dec71 | 2023-09-05 12:23:32 -0400 | [diff] [blame] | 1424 | if (params->tls_authz |
| 1425 | && params->tls_authz->type == QTYPE_QNULL) { |
| 1426 | qobject_unref(params->tls_authz->u.n); |
| 1427 | params->tls_authz->type = QTYPE_QSTRING; |
| 1428 | params->tls_authz->u.s = strdup(""); |
| 1429 | } |
Juan Quintela | 09d6c96 | 2023-03-02 10:13:16 +0100 | [diff] [blame] | 1430 | |
| 1431 | migrate_params_test_apply(params, &tmp); |
| 1432 | |
| 1433 | if (!migrate_params_check(&tmp, errp)) { |
| 1434 | /* Invalid parameter */ |
| 1435 | return; |
| 1436 | } |
| 1437 | |
| 1438 | migrate_params_apply(params, errp); |
| 1439 | } |