qemu/0005-vl-plug-object-back-into-readconfig.patch

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2021-06-01 07:30:59 +00:00
From 10b889b529490efb228667505bab851e8e406c67 Mon Sep 17 00:00:00 2001
From: Paolo Bonzini <pbonzini@redhat.com>
Date: Tue, 18 May 2021 11:40:59 -0400
Subject: [PATCH 5/5] 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>
---
softmmu/vl.c | 24 ++++++++++++++++++------
1 file changed, 18 insertions(+), 6 deletions(-)
diff --git a/softmmu/vl.c b/softmmu/vl.c
index 48d1f06..d282dea 100644
--- a/softmmu/vl.c
+++ b/softmmu/vl.c
@@ -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();
+ }
}
/*
--
2.31.1