vl: allow passing JSON to -object

Extend the ObjectOption code that was added in the previous patch to
enable passing JSON to -object.  Even though we cannot yet add
non-scalar properties with the human-friendly comma-separated syntax,
they can now be added as JSON.

Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20210312173547.1283477-4-pbonzini@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Paolo Bonzini 2021-03-12 12:35:47 -05:00 committed by Kevin Wolf
parent bc2f4fcb1d
commit 009ff89328

View File

@ -31,6 +31,7 @@
#include "hw/qdev-properties.h"
#include "qapi/error.h"
#include "qapi/qmp/qdict.h"
#include "qapi/qmp/qjson.h"
#include "qemu-version.h"
#include "qemu/cutils.h"
#include "qemu/help_option.h"
@ -1712,22 +1713,30 @@ static void object_option_parse(const char *optarg)
const char *type;
Visitor *v;
opts = qemu_opts_parse_noisily(qemu_find_opts("object"),
optarg, true);
if (!opts) {
exit(1);
}
if (optarg[0] == '{') {
QObject *obj = qobject_from_json(optarg, &error_fatal);
type = qemu_opt_get(opts, "qom-type");
if (!type) {
error_setg(&error_fatal, QERR_MISSING_PARAMETER, "qom-type");
}
if (user_creatable_print_help(type, opts)) {
exit(0);
v = qobject_input_visitor_new(obj);
qobject_unref(obj);
} else {
opts = qemu_opts_parse_noisily(qemu_find_opts("object"),
optarg, true);
if (!opts) {
exit(1);
}
type = qemu_opt_get(opts, "qom-type");
if (!type) {
error_setg(&error_fatal, QERR_MISSING_PARAMETER, "qom-type");
}
if (user_creatable_print_help(type, opts)) {
exit(0);
}
v = opts_visitor_new(opts);
}
opt = g_new0(ObjectOption, 1);
v = opts_visitor_new(opts);
visit_type_ObjectOptions(v, NULL, &opt->opts, &error_fatal);
visit_free(v);