vl: plug -object back into -readconfig

Commit bc2f4fcb1d ("qom: move user_creatable_add_opts logic to vl.c
and QAPIfy it", 2021-03-19) switched the creation of objects from
qemu_opts_foreach to a bespoke QTAILQ in preparation for supporting JSON
syntax in -object.

Unfortunately in doing so it lost support for [object] stanzas in
configuration files and also for "-set object.ID.KEY=VAL".  The latter
is hard to re-establish and probably best solved by deprecating -set.
This patch uses the infrastructure introduced by the previous two
patches in order to parse QOM objects correctly from configuration
files.

Cc: Markus Armbruster <armbru@redhat.com>
Cc: qemu-stable@nongnu.org
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20210524105752.3318299-4-pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
(cherry picked from commit 49e987695a)
Signed-off-by: Michael Roth <michael.roth@amd.com>
This commit is contained in:
Paolo Bonzini 2021-05-24 06:57:52 -04:00 committed by Michael Roth
parent c675ba821c
commit 5b96b36a61

View File

@ -1709,9 +1709,15 @@ static void object_option_foreach_add(bool (*type_opt_predicate)(const char *))
}
}
static void object_option_add_visitor(Visitor *v)
{
ObjectOption *opt = g_new0(ObjectOption, 1);
visit_type_ObjectOptions(v, NULL, &opt->opts, &error_fatal);
QTAILQ_INSERT_TAIL(&object_opts, opt, next);
}
static void object_option_parse(const char *optarg)
{
ObjectOption *opt;
QemuOpts *opts;
const char *type;
Visitor *v;
@ -1739,11 +1745,8 @@ static void object_option_parse(const char *optarg)
v = opts_visitor_new(opts);
}
opt = g_new0(ObjectOption, 1);
visit_type_ObjectOptions(v, NULL, &opt->opts, &error_fatal);
object_option_add_visitor(v);
visit_free(v);
QTAILQ_INSERT_TAIL(&object_opts, opt, next);
}
/*
@ -2120,13 +2123,22 @@ static int global_init_func(void *opaque, QemuOpts *opts, Error **errp)
*/
static bool is_qemuopts_group(const char *group)
{
if (g_str_equal(group, "object")) {
return false;
}
return true;
}
static void qemu_record_config_group(const char *group, QDict *dict,
bool from_json, Error **errp)
{
abort();
if (g_str_equal(group, "object")) {
Visitor *v = qobject_input_visitor_new_keyval(QOBJECT(dict));
object_option_add_visitor(v);
visit_free(v);
} else {
abort();
}
}
/*