diff options
| -rw-r--r-- | docs/migration.txt | 2 | ||||
| -rw-r--r-- | hmp-commands.hx | 2 | ||||
| -rw-r--r-- | migration/migration.c | 9 | ||||
| -rw-r--r-- | migration/savevm.c | 18 | ||||
| -rw-r--r-- | qapi-schema.json | 8 | ||||
| -rw-r--r-- | qmp-commands.hx | 6 |
6 files changed, 26 insertions, 19 deletions
diff --git a/docs/migration.txt b/docs/migration.txt index fda8d61d69..90209ab294 100644 --- a/docs/migration.txt +++ b/docs/migration.txt @@ -333,7 +333,7 @@ doesn't finish in a given time the switch is made to postcopy. To enable postcopy, issue this command on the monitor prior to the start of migration: -migrate_set_capability x-postcopy-ram on +migrate_set_capability postcopy-ram on The normal commands are then used to start a migration, which is still started in precopy mode. Issuing: diff --git a/hmp-commands.hx b/hmp-commands.hx index 664d794f29..639205b692 100644 --- a/hmp-commands.hx +++ b/hmp-commands.hx @@ -1026,7 +1026,7 @@ ETEXI .args_type = "", .params = "", .help = "Followup to a migration command to switch the migration" - " to postcopy mode. The x-postcopy-ram capability must " + " to postcopy mode. The postcopy-ram capability must " "be set before the original migration command.", .mhandler.cmd = hmp_migrate_start_postcopy, }, diff --git a/migration/migration.c b/migration/migration.c index 7d13377b8e..034a918d32 100644 --- a/migration/migration.c +++ b/migration/migration.c @@ -706,7 +706,7 @@ void qmp_migrate_set_capabilities(MigrationCapabilityStatusList *params, */ error_report("Postcopy is not currently compatible with " "compression"); - s->enabled_capabilities[MIGRATION_CAPABILITY_X_POSTCOPY_RAM] = + s->enabled_capabilities[MIGRATION_CAPABILITY_POSTCOPY_RAM] = false; } } @@ -1125,7 +1125,7 @@ bool migrate_postcopy_ram(void) s = migrate_get_current(); - return s->enabled_capabilities[MIGRATION_CAPABILITY_X_POSTCOPY_RAM]; + return s->enabled_capabilities[MIGRATION_CAPABILITY_POSTCOPY_RAM]; } bool migrate_auto_converge(void) @@ -1269,8 +1269,7 @@ static void *source_return_path_thread(void *opaque) MigrationState *ms = opaque; QEMUFile *rp = ms->rp_state.from_dst_file; uint16_t header_len, header_type; - const int max_len = 512; - uint8_t buf[max_len]; + uint8_t buf[512]; uint32_t tmp32, sibling_error; ram_addr_t start = 0; /* =0 to silence warning */ size_t len = 0, expected_len; @@ -1293,7 +1292,7 @@ static void *source_return_path_thread(void *opaque) if ((rp_cmd_args[header_type].len != -1 && header_len != rp_cmd_args[header_type].len) || - header_len > max_len) { + header_len > sizeof(buf)) { error_report("RP: Received '%s' message (0x%04x) with" "incorrect length %d expecting %zu", rp_cmd_args[header_type].name, header_type, header_len, diff --git a/migration/savevm.c b/migration/savevm.c index 96e7db5967..0a33c227c5 100644 --- a/migration/savevm.c +++ b/migration/savevm.c @@ -1494,17 +1494,22 @@ static int loadvm_postcopy_handle_listen(MigrationIncomingState *mis) qemu_sem_init(&mis->listen_thread_sem, 0); qemu_thread_create(&mis->listen_thread, "postcopy/listen", postcopy_ram_listen_thread, mis->from_src_file, - QEMU_THREAD_JOINABLE); + QEMU_THREAD_DETACHED); qemu_sem_wait(&mis->listen_thread_sem); qemu_sem_destroy(&mis->listen_thread_sem); return 0; } + +typedef struct { + QEMUBH *bh; +} HandleRunBhData; + static void loadvm_postcopy_handle_run_bh(void *opaque) { Error *local_err = NULL; - MigrationIncomingState *mis = opaque; + HandleRunBhData *data = opaque; /* TODO we should move all of this lot into postcopy_ram.c or a shared code * in migration.c @@ -1532,13 +1537,15 @@ static void loadvm_postcopy_handle_run_bh(void *opaque) runstate_set(RUN_STATE_PAUSED); } - qemu_bh_delete(mis->bh); + qemu_bh_delete(data->bh); + g_free(data); } /* After all discards we can start running and asking for pages */ static int loadvm_postcopy_handle_run(MigrationIncomingState *mis) { PostcopyState ps = postcopy_state_set(POSTCOPY_INCOMING_RUNNING); + HandleRunBhData *data; trace_loadvm_postcopy_handle_run(); if (ps != POSTCOPY_INCOMING_LISTENING) { @@ -1546,8 +1553,9 @@ static int loadvm_postcopy_handle_run(MigrationIncomingState *mis) return -1; } - mis->bh = qemu_bh_new(loadvm_postcopy_handle_run_bh, NULL); - qemu_bh_schedule(mis->bh); + data = g_new(HandleRunBhData, 1); + data->bh = qemu_bh_new(loadvm_postcopy_handle_run_bh, data); + qemu_bh_schedule(data->bh); /* We need to finish reading the stream from the package * and also stop reading anything more from the stream that loaded the diff --git a/qapi-schema.json b/qapi-schema.json index 362c9d816a..6269c370e7 100644 --- a/qapi-schema.json +++ b/qapi-schema.json @@ -540,15 +540,15 @@ # @auto-converge: If enabled, QEMU will automatically throttle down the guest # to speed up convergence of RAM migration. (since 1.6) # -# @x-postcopy-ram: Start executing on the migration target before all of RAM has +# @postcopy-ram: Start executing on the migration target before all of RAM has # been migrated, pulling the remaining pages along as needed. NOTE: If -# the migration fails during postcopy the VM will fail. (since 2.5) +# the migration fails during postcopy the VM will fail. (since 2.6) # # Since: 1.2 ## { 'enum': 'MigrationCapability', 'data': ['xbzrle', 'rdma-pin-all', 'auto-converge', 'zero-blocks', - 'compress', 'events', 'x-postcopy-ram'] } + 'compress', 'events', 'postcopy-ram'] } ## # @MigrationCapabilityStatus @@ -705,7 +705,7 @@ # @migrate-start-postcopy # # Followup to a migration command to switch the migration to postcopy mode. -# The x-postcopy-ram capability must be set before the original migration +# The postcopy-ram capability must be set before the original migration # command. # # Since: 2.5 diff --git a/qmp-commands.hx b/qmp-commands.hx index b629673459..9e05365ccf 100644 --- a/qmp-commands.hx +++ b/qmp-commands.hx @@ -3683,7 +3683,7 @@ Enable/Disable migration capabilities - "zero-blocks": compress zero blocks during block migration - "compress": use multiple compression threads to accelerate live migration - "events": generate events for each migration state change -- "x-postcopy-ram": postcopy mode for live migration +- "postcopy-ram": postcopy mode for live migration Arguments: @@ -3713,7 +3713,7 @@ Query current migration capabilities - "zero-blocks" : Zero Blocks state (json-bool) - "compress": Multiple compression threads state (json-bool) - "events": Migration state change event state (json-bool) - - "x-postcopy-ram": postcopy ram state (json-bool) + - "postcopy-ram": postcopy ram state (json-bool) Arguments: @@ -3727,7 +3727,7 @@ Example: {"state": false, "capability": "zero-blocks"}, {"state": false, "capability": "compress"}, {"state": true, "capability": "events"}, - {"state": false, "capability": "x-postcopy-ram"} + {"state": false, "capability": "postcopy-ram"} ]} EQMP |