diff options
Diffstat (limited to 'migration/savevm.c')
| -rw-r--r-- | migration/savevm.c | 89 |
1 files changed, 47 insertions, 42 deletions
diff --git a/migration/savevm.c b/migration/savevm.c index 34bcad3807..c0e557b4c2 100644 --- a/migration/savevm.c +++ b/migration/savevm.c @@ -1157,15 +1157,13 @@ int qemu_savevm_state_iterate(QEMUFile *f, bool postcopy) if (!se->ops || !se->ops->save_live_iterate) { continue; } - if (se->ops && se->ops->is_active) { - if (!se->ops->is_active(se->opaque)) { - continue; - } + if (se->ops->is_active && + !se->ops->is_active(se->opaque)) { + continue; } - if (se->ops && se->ops->is_active_iterate) { - if (!se->ops->is_active_iterate(se->opaque)) { - continue; - } + if (se->ops->is_active_iterate && + !se->ops->is_active_iterate(se->opaque)) { + continue; } /* * In the postcopy phase, any device that doesn't know how to @@ -1420,10 +1418,6 @@ static int qemu_savevm_state(QEMUFile *f, Error **errp) return -EINVAL; } - if (migration_is_blocked(errp)) { - return -EINVAL; - } - if (migrate_use_block()) { error_setg(errp, "Block migration and snapshots are incompatible"); return -EINVAL; @@ -2268,6 +2262,43 @@ qemu_loadvm_section_part_end(QEMUFile *f, MigrationIncomingState *mis) return 0; } +static int qemu_loadvm_state_header(QEMUFile *f) +{ + unsigned int v; + int ret; + + v = qemu_get_be32(f); + if (v != QEMU_VM_FILE_MAGIC) { + error_report("Not a migration stream"); + return -EINVAL; + } + + v = qemu_get_be32(f); + if (v == QEMU_VM_FILE_VERSION_COMPAT) { + error_report("SaveVM v2 format is obsolete and don't work anymore"); + return -ENOTSUP; + } + if (v != QEMU_VM_FILE_VERSION) { + error_report("Unsupported migration stream version"); + return -ENOTSUP; + } + + if (migrate_get_current()->send_configuration) { + if (qemu_get_byte(f) != QEMU_VM_CONFIGURATION) { + error_report("Configuration section missing"); + qemu_loadvm_state_cleanup(); + return -EINVAL; + } + ret = vmstate_load_state(f, &vmstate_configuration, &savevm_state, 0); + + if (ret) { + qemu_loadvm_state_cleanup(); + return ret; + } + } + return 0; +} + static int qemu_loadvm_state_setup(QEMUFile *f) { SaveStateEntry *se; @@ -2416,7 +2447,6 @@ int qemu_loadvm_state(QEMUFile *f) { MigrationIncomingState *mis = migration_incoming_get_current(); Error *local_err = NULL; - unsigned int v; int ret; if (qemu_savevm_state_blocked(&local_err)) { @@ -2424,40 +2454,15 @@ int qemu_loadvm_state(QEMUFile *f) return -EINVAL; } - v = qemu_get_be32(f); - if (v != QEMU_VM_FILE_MAGIC) { - error_report("Not a migration stream"); - return -EINVAL; - } - - v = qemu_get_be32(f); - if (v == QEMU_VM_FILE_VERSION_COMPAT) { - error_report("SaveVM v2 format is obsolete and don't work anymore"); - return -ENOTSUP; - } - if (v != QEMU_VM_FILE_VERSION) { - error_report("Unsupported migration stream version"); - return -ENOTSUP; + ret = qemu_loadvm_state_header(f); + if (ret) { + return ret; } if (qemu_loadvm_state_setup(f) != 0) { return -EINVAL; } - if (migrate_get_current()->send_configuration) { - if (qemu_get_byte(f) != QEMU_VM_CONFIGURATION) { - error_report("Configuration section missing"); - qemu_loadvm_state_cleanup(); - return -EINVAL; - } - ret = vmstate_load_state(f, &vmstate_configuration, &savevm_state, 0); - - if (ret) { - qemu_loadvm_state_cleanup(); - return ret; - } - } - cpu_synchronize_all_pre_loadvm(); ret = qemu_loadvm_state_main(f, mis); @@ -2544,7 +2549,7 @@ int save_snapshot(const char *name, Error **errp) AioContext *aio_context; if (migration_is_blocked(errp)) { - return false; + return ret; } if (!replay_can_snapshot()) { |