Define the cpr-uri migration parameter to specify the URI to which CPR vmstate is saved for cpr-transfer mode.
Signed-off-by: Steve Sistare <steven.sist...@oracle.com> --- migration/migration-hmp-cmds.c | 10 ++++++++++ migration/options.c | 29 +++++++++++++++++++++++++++++ migration/options.h | 1 + qapi/migration.json | 12 ++++++++++++ 4 files changed, 52 insertions(+) diff --git a/migration/migration-hmp-cmds.c b/migration/migration-hmp-cmds.c index 16a4b00..4ede831 100644 --- a/migration/migration-hmp-cmds.c +++ b/migration/migration-hmp-cmds.c @@ -371,6 +371,11 @@ void hmp_info_migrate_parameters(Monitor *mon, const QDict *qdict) params->direct_io ? "on" : "off"); } + assert(params->cpr_uri); + monitor_printf(mon, "%s: '%s'\n", + MigrationParameter_str(MIGRATION_PARAMETER_CPR_URI), + params->cpr_uri); + assert(params->has_cpr_exec_command); monitor_print_cpr_exec_command(mon, params->cpr_exec_command); } @@ -650,6 +655,11 @@ void hmp_migrate_set_parameter(Monitor *mon, const QDict *qdict) p->has_direct_io = true; visit_type_bool(v, param, &p->direct_io, &err); break; + case MIGRATION_PARAMETER_CPR_URI: + p->cpr_uri = g_new0(StrOrNull, 1); + p->cpr_uri->type = QTYPE_QSTRING; + visit_type_str(v, param, &p->cpr_uri->u.s, &err); + break; case MIGRATION_PARAMETER_CPR_EXEC_COMMAND: { g_autofree char **strv = g_strsplit(valuestr ?: "", " ", -1); strList **tail = &p->cpr_exec_command; diff --git a/migration/options.c b/migration/options.c index b8d5f72..7526f9f 100644 --- a/migration/options.c +++ b/migration/options.c @@ -163,6 +163,8 @@ Property migration_properties[] = { DEFINE_PROP_ZERO_PAGE_DETECTION("zero-page-detection", MigrationState, parameters.zero_page_detection, ZERO_PAGE_DETECTION_MULTIFD), + DEFINE_PROP_STRING("cpr-uri", MigrationState, + parameters.cpr_uri), /* Migration capabilities */ DEFINE_PROP_MIG_CAP("x-xbzrle", MIGRATION_CAPABILITY_XBZRLE), @@ -848,6 +850,13 @@ ZeroPageDetection migrate_zero_page_detection(void) return s->parameters.zero_page_detection; } +const char *migrate_cpr_uri(void) +{ + MigrationState *s = migrate_get_current(); + + return s->parameters.cpr_uri; +} + /* parameters helpers */ AnnounceParameters *migrate_announce_params(void) @@ -931,6 +940,7 @@ MigrationParameters *qmp_query_migrate_parameters(Error **errp) params->zero_page_detection = s->parameters.zero_page_detection; params->has_direct_io = true; params->direct_io = s->parameters.direct_io; + params->cpr_uri = g_strdup(s->parameters.cpr_uri); params->has_cpr_exec_command = true; params->cpr_exec_command = QAPI_CLONE(strList, s->parameters.cpr_exec_command); @@ -967,6 +977,7 @@ void migrate_params_init(MigrationParameters *params) params->has_mode = true; params->has_zero_page_detection = true; params->has_direct_io = true; + params->cpr_uri = g_strdup(""); params->has_cpr_exec_command = true; } @@ -1257,9 +1268,15 @@ static void migrate_params_test_apply(MigrateSetParameters *params, dest->direct_io = params->direct_io; } + if (params->cpr_uri) { + assert(params->cpr_uri->type == QTYPE_QSTRING); + dest->cpr_uri = params->cpr_uri->u.s; + } + if (params->has_cpr_exec_command) { dest->cpr_exec_command = params->cpr_exec_command; } + } static void migrate_params_apply(MigrateSetParameters *params, Error **errp) @@ -1390,6 +1407,12 @@ static void migrate_params_apply(MigrateSetParameters *params, Error **errp) s->parameters.direct_io = params->direct_io; } + if (params->cpr_uri) { + g_free(s->parameters.cpr_uri); + assert(params->cpr_uri->type == QTYPE_QSTRING); + s->parameters.cpr_uri = g_strdup(params->cpr_uri->u.s); + } + if (params->has_cpr_exec_command) { qapi_free_strList(s->parameters.cpr_exec_command); s->parameters.cpr_exec_command = @@ -1421,6 +1444,12 @@ void qmp_migrate_set_parameters(MigrateSetParameters *params, Error **errp) params->tls_authz->u.s = strdup(""); } + if (params->cpr_uri && params->cpr_uri->type == QTYPE_QNULL) { + qobject_unref(params->cpr_uri->u.n); + params->cpr_uri->type = QTYPE_QSTRING; + params->cpr_uri->u.s = strdup(""); + } + migrate_params_test_apply(params, &tmp); if (!migrate_params_check(&tmp, errp)) { diff --git a/migration/options.h b/migration/options.h index a239702..7492fcf 100644 --- a/migration/options.h +++ b/migration/options.h @@ -85,6 +85,7 @@ const char *migrate_tls_creds(void); const char *migrate_tls_hostname(void); uint64_t migrate_xbzrle_cache_size(void); ZeroPageDetection migrate_zero_page_detection(void); +const char *migrate_cpr_uri(void); /* parameters helpers */ diff --git a/qapi/migration.json b/qapi/migration.json index 4e626df..df62456 100644 --- a/qapi/migration.json +++ b/qapi/migration.json @@ -851,6 +851,9 @@ # only has effect if the @mapped-ram capability is enabled. # (Since 9.1) # +# @cpr-uri: URI for an additional migration channel needed by +# @cpr-transfer mode. (Since 9.1) +# # @cpr-exec-command: Command to start the new QEMU process when @mode # is @cpr-exec. The first list element is the program's filename, # the remainder its arguments. (Since 9.1) @@ -881,6 +884,7 @@ 'mode', 'zero-page-detection', 'direct-io', + 'cpr-uri', 'cpr-exec-command'] } ## @@ -1031,6 +1035,9 @@ # only has effect if the @mapped-ram capability is enabled. # (Since 9.1) # +# @cpr-uri: URI for an additional migration channel needed by +# @cpr-transfer mode. (Since 9.1) +# # @cpr-exec-command: Command to start the new QEMU process when @mode # is @cpr-exec. The first list element is the program's filename, # the remainder its arguments. (Since 9.1) @@ -1076,6 +1083,7 @@ '*mode': 'MigMode', '*zero-page-detection': 'ZeroPageDetection', '*direct-io': 'bool', + '*cpr-uri': 'StrOrNull', '*cpr-exec-command': [ 'str' ]} } ## @@ -1240,6 +1248,9 @@ # only has effect if the @mapped-ram capability is enabled. # (Since 9.1) # +# @cpr-uri: URI for an additional migration channel needed by +# @cpr-transfer mode. (Since 9.1) +# # @cpr-exec-command: Command to start the new QEMU process when @mode # is @cpr-exec. The first list element is the program's filename, # the remainder its arguments. (Since 9.1) @@ -1282,6 +1293,7 @@ '*mode': 'MigMode', '*zero-page-detection': 'ZeroPageDetection', '*direct-io': 'bool', + '*cpr-uri': 'str', '*cpr-exec-command': [ 'str' ]} } ## -- 1.8.3.1