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migration: cpr-exec-command parameter

Browse source 
Create the cpr-exec-command migration parameter, defined as a list of
strings.  It will be used for cpr-exec migration mode in a subsequent
patch, and contains forward references to cpr-exec mode in the qapi
doc.

No functional change, except that cpr-exec-command is shown by the
'info migrate' command.

Signed-off-by: Steve Sistare <steven.sistare@oracle.com>
Acked-by: Markus Armbruster <armbru@redhat.com>
Link: https://lore.kernel.org/r/1759332851-370353-5-git-send-email-steven.sistare@oracle.com
Signed-off-by: Peter Xu <peterx@redhat.com>
This commit is contained in:
Steve Sistare 2025-10-01 08:33:56 -07:00 • committed by Peter Xu
parent fe72a8073e
commit f57ff59f1e
4 changed files with 63 additions and 4 deletions
Download patch file Download diff file Expand all files Collapse all files

30
migration/migration-hmp-cmds.c
View file

@ -306,6 +306,18 @@ void hmp_info_migrate_capabilities(Monitor *mon, const QDict *qdict)
qapi_free_MigrationCapabilityStatusList(caps);
}
static void monitor_print_cpr_exec_command(Monitor *mon, strList *args)
{
monitor_printf(mon, "%s:",
MigrationParameter_str(MIGRATION_PARAMETER_CPR_EXEC_COMMAND));
while (args) {
monitor_printf(mon, " %s", args->value);
args = args->next;
}
monitor_printf(mon, "\n");
}
void hmp_info_migrate_parameters(Monitor *mon, const QDict *qdict)
{
MigrationParameters *params;
@ -437,6 +449,9 @@ void hmp_info_migrate_parameters(Monitor *mon, const QDict *qdict)
MIGRATION_PARAMETER_DIRECT_IO),
params->direct_io ? "on" : "off");
}
assert(params->has_cpr_exec_command);
monitor_print_cpr_exec_command(mon, params->cpr_exec_command);
}
qapi_free_MigrationParameters(params);
@ -718,6 +733,21 @@ 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_EXEC_COMMAND: {
g_autofree char **strv = NULL;
g_autoptr(GError) gerr = NULL;
strList **tail = &p->cpr_exec_command;
if (!g_shell_parse_argv(valuestr, NULL, &strv, &gerr)) {
error_setg(&err, "%s", gerr->message);
break;
}
for (int i = 0; strv[i]; i++) {
QAPI_LIST_APPEND(tail, strv[i]);
}
p->has_cpr_exec_command = true;
break;
}
default:
g_assert_not_reached();
}

14
migration/options.c
View file

@ -959,6 +959,9 @@ 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->has_cpr_exec_command = true;
params->cpr_exec_command = QAPI_CLONE(strList,
s->parameters.cpr_exec_command);
return params;
}
@ -993,6 +996,7 @@ void migrate_params_init(MigrationParameters *params)
params->has_mode = true;
params->has_zero_page_detection = true;
params->has_direct_io = true;
params->has_cpr_exec_command = true;
}
/*
@ -1297,6 +1301,10 @@ static void migrate_params_test_apply(MigrateSetParameters *params,
if (params->has_direct_io) {
dest->direct_io = params->direct_io;
}
if (params->has_cpr_exec_command) {
dest->cpr_exec_command = params->cpr_exec_command;
}
}
static void migrate_params_apply(MigrateSetParameters *params, Error **errp)
@ -1429,6 +1437,12 @@ static void migrate_params_apply(MigrateSetParameters *params, Error **errp)
if (params->has_direct_io) {
s->parameters.direct_io = params->direct_io;
}
if (params->has_cpr_exec_command) {
qapi_free_strList(s->parameters.cpr_exec_command);
s->parameters.cpr_exec_command =
QAPI_CLONE(strList, params->cpr_exec_command);
}
}
void qmp_migrate_set_parameters(MigrateSetParameters *params, Error **errp)