diff options
| -rw-r--r-- | migration/migration.c | 56 | ||||
| -rw-r--r-- | qapi-schema.json | 45 | ||||
| -rw-r--r-- | qmp-commands.hx | 57 |
3 files changed, 158 insertions, 0 deletions
diff --git a/migration/migration.c b/migration/migration.c index 533717c681..732d229708 100644 --- a/migration/migration.c +++ b/migration/migration.c @@ -188,6 +188,21 @@ MigrationCapabilityStatusList *qmp_query_migrate_capabilities(Error **errp) return head; } +MigrationParameters *qmp_query_migrate_parameters(Error **errp) +{ + MigrationParameters *params; + MigrationState *s = migrate_get_current(); + + params = g_malloc0(sizeof(*params)); + params->compress_level = s->parameters[MIGRATION_PARAMETER_COMPRESS_LEVEL]; + params->compress_threads = + s->parameters[MIGRATION_PARAMETER_COMPRESS_THREADS]; + params->decompress_threads = + s->parameters[MIGRATION_PARAMETER_DECOMPRESS_THREADS]; + + return params; +} + static void get_xbzrle_cache_stats(MigrationInfo *info) { if (migrate_use_xbzrle()) { @@ -301,6 +316,47 @@ void qmp_migrate_set_capabilities(MigrationCapabilityStatusList *params, } } +void qmp_migrate_set_parameters(bool has_compress_level, + int64_t compress_level, + bool has_compress_threads, + int64_t compress_threads, + bool has_decompress_threads, + int64_t decompress_threads, Error **errp) +{ + MigrationState *s = migrate_get_current(); + + if (has_compress_level && (compress_level < 0 || compress_level > 9)) { + error_set(errp, QERR_INVALID_PARAMETER_VALUE, "compress_level", + "is invalid, it should be in the range of 0 to 9"); + return; + } + if (has_compress_threads && + (compress_threads < 1 || compress_threads > 255)) { + error_set(errp, QERR_INVALID_PARAMETER_VALUE, + "compress_threads", + "is invalid, it should be in the range of 1 to 255"); + return; + } + if (has_decompress_threads && + (decompress_threads < 1 || decompress_threads > 255)) { + error_set(errp, QERR_INVALID_PARAMETER_VALUE, + "decompress_threads", + "is invalid, it should be in the range of 1 to 255"); + return; + } + + if (has_compress_level) { + s->parameters[MIGRATION_PARAMETER_COMPRESS_LEVEL] = compress_level; + } + if (has_compress_threads) { + s->parameters[MIGRATION_PARAMETER_COMPRESS_THREADS] = compress_threads; + } + if (has_decompress_threads) { + s->parameters[MIGRATION_PARAMETER_DECOMPRESS_THREADS] = + decompress_threads; + } +} + /* shared migration helpers */ static void migrate_set_state(MigrationState *s, int old_state, int new_state) diff --git a/qapi-schema.json b/qapi-schema.json index 9c03e17618..9c92482898 100644 --- a/qapi-schema.json +++ b/qapi-schema.json @@ -592,6 +592,51 @@ { 'enum': 'MigrationParameter', 'data': ['compress-level', 'compress-threads', 'decompress-threads'] } +# +# @migrate-set-parameters +# +# Set the following migration parameters +# +# @compress-level: compression level +# +# @compress-threads: compression thread count +# +# @decompress-threads: decompression thread count +# +# Since: 2.4 +## +{ 'command': 'migrate-set-parameters', + 'data': { '*compress-level': 'int', + '*compress-threads': 'int', + '*decompress-threads': 'int'} } + +# +# @MigrationParameters +# +# @compress-level: compression level +# +# @compress-threads: compression thread count +# +# @decompress-threads: decompression thread count +# +# Since: 2.4 +## +{ 'struct': 'MigrationParameters', + 'data': { 'compress-level': 'int', + 'compress-threads': 'int', + 'decompress-threads': 'int'} } +## +# @query-migrate-parameters +# +# Returns information about the current migration parameters +# +# Returns: @MigrationParameters +# +# Since: 2.4 +## +{ 'command': 'query-migrate-parameters', + 'returns': 'MigrationParameters' } + ## # @MouseInfo: # diff --git a/qmp-commands.hx b/qmp-commands.hx index d4a837c89b..7506774afb 100644 --- a/qmp-commands.hx +++ b/qmp-commands.hx @@ -3443,6 +3443,63 @@ EQMP }, SQMP +migrate-set-parameters +---------------------- + +Set migration parameters + +- "compress-level": set compression level during migration (json-int) +- "compress-threads": set compression thread count for migration (json-int) +- "decompress-threads": set decompression thread count for migration (json-int) + +Arguments: + +Example: + +-> { "execute": "migrate-set-parameters" , "arguments": + { "compress-level": 1 } } + +EQMP + + { + .name = "migrate-set-parameters", + .args_type = + "compress-level:i?,compress-threads:i?,decompress-threads:i?", + .mhandler.cmd_new = qmp_marshal_input_migrate_set_parameters, + }, +SQMP +query-migrate-parameters +------------------------ + +Query current migration parameters + +- "parameters": migration parameters value + - "compress-level" : compression level value (json-int) + - "compress-threads" : compression thread count value (json-int) + - "decompress-threads" : decompression thread count value (json-int) + +Arguments: + +Example: + +-> { "execute": "query-migrate-parameters" } +<- { + "return": { + "decompress-threads", 2, + "compress-threads", 8, + "compress-level", 1 + } + } + +EQMP + + { + .name = "query-migrate-parameters", + .args_type = "", + .mhandler.cmd_new = qmp_marshal_input_query_migrate_parameters, + }, + +SQMP query-balloon ------------- |