From e02cda008591317b1625707ff8e115a4841aa889 Mon Sep 17 00:00:00 2001
From: Timos Ampelikiotis <t.ampelikiotis@virtualopensystems.com>
Date: Tue, 10 Oct 2023 11:40:56 +0000
Subject: Introduce Virtio-loopback epsilon release:
Epsilon release introduces a new compatibility layer which make virtio-loopback
design to work with QEMU and rust-vmm vhost-user backend without require any
changes.
Signed-off-by: Timos Ampelikiotis <t.ampelikiotis@virtualopensystems.com>
Change-Id: I52e57563e08a7d0bdc002f8e928ee61ba0c53dd9
---
qom/qom-hmp-cmds.c | 152 +++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 152 insertions(+)
create mode 100644 qom/qom-hmp-cmds.c
(limited to 'qom/qom-hmp-cmds.c')
diff --git a/qom/qom-hmp-cmds.c b/qom/qom-hmp-cmds.c
new file mode 100644
index 000000000..453fbfeab
--- /dev/null
+++ b/qom/qom-hmp-cmds.c
@@ -0,0 +1,152 @@
+/*
+ * HMP commands related to QOM
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or
+ * later. See the COPYING file in the top-level directory.
+ */
+
+#include "qemu/osdep.h"
+#include "hw/qdev-core.h"
+#include "monitor/hmp.h"
+#include "monitor/monitor.h"
+#include "qapi/error.h"
+#include "qapi/qapi-commands-qom.h"
+#include "qapi/qmp/qdict.h"
+#include "qapi/qmp/qjson.h"
+#include "qom/object.h"
+
+void hmp_qom_list(Monitor *mon, const QDict *qdict)
+{
+ const char *path = qdict_get_try_str(qdict, "path");
+ ObjectPropertyInfoList *list;
+ Error *err = NULL;
+
+ if (path == NULL) {
+ monitor_printf(mon, "/\n");
+ return;
+ }
+
+ list = qmp_qom_list(path, &err);
+ if (err == NULL) {
+ ObjectPropertyInfoList *start = list;
+ while (list != NULL) {
+ ObjectPropertyInfo *value = list->value;
+
+ monitor_printf(mon, "%s (%s)\n",
+ value->name, value->type);
+ list = list->next;
+ }
+ qapi_free_ObjectPropertyInfoList(start);
+ }
+ hmp_handle_error(mon, err);
+}
+
+void hmp_qom_set(Monitor *mon, const QDict *qdict)
+{
+ const bool json = qdict_get_try_bool(qdict, "json", false);
+ const char *path = qdict_get_str(qdict, "path");
+ const char *property = qdict_get_str(qdict, "property");
+ const char *value = qdict_get_str(qdict, "value");
+ Error *err = NULL;
+
+ if (!json) {
+ Object *obj = object_resolve_path(path, NULL);
+
+ if (!obj) {
+ error_set(&err, ERROR_CLASS_DEVICE_NOT_FOUND,
+ "Device '%s' not found", path);
+ } else {
+ object_property_parse(obj, property, value, &err);
+ }
+ } else {
+ QObject *obj = qobject_from_json(value, &err);
+
+ if (!err) {
+ qmp_qom_set(path, property, obj, &err);
+ }
+ }
+
+ hmp_handle_error(mon, err);
+}
+
+void hmp_qom_get(Monitor *mon, const QDict *qdict)
+{
+ const char *path = qdict_get_str(qdict, "path");
+ const char *property = qdict_get_str(qdict, "property");
+ Error *err = NULL;
+ QObject *obj = qmp_qom_get(path, property, &err);
+
+ if (err == NULL) {
+ GString *str = qobject_to_json_pretty(obj, true);
+ monitor_printf(mon, "%s\n", str->str);
+ g_string_free(str, true);
+ }
+
+ qobject_unref(obj);
+ hmp_handle_error(mon, err);
+}
+
+typedef struct QOMCompositionState {
+ Monitor *mon;
+ int indent;
+} QOMCompositionState;
+
+static void print_qom_composition(Monitor *mon, Object *obj, int indent);
+
+static int qom_composition_compare(const void *a, const void *b)
+{
+ return g_strcmp0(object_get_canonical_path_component(*(Object **)a),
+ object_get_canonical_path_component(*(Object **)b));
+}
+
+static int insert_qom_composition_child(Object *obj, void *opaque)
+{
+ g_array_append_val(opaque, obj);
+ return 0;
+}
+
+static void print_qom_composition(Monitor *mon, Object *obj, int indent)
+{
+ GArray *children = g_array_new(false, false, sizeof(Object *));
+ const char *name;
+ int i;
+
+ if (obj == object_get_root()) {
+ name = "";
+ } else {
+ name = object_get_canonical_path_component(obj);
+ }
+ monitor_printf(mon, "%*s/%s (%s)\n", indent, "", name,
+ object_get_typename(obj));
+
+ object_child_foreach(obj, insert_qom_composition_child, children);
+ g_array_sort(children, qom_composition_compare);
+
+ for (i = 0; i < children->len; i++) {
+ print_qom_composition(mon, g_array_index(children, Object *, i),
+ indent + 2);
+ }
+ g_array_free(children, TRUE);
+}
+
+void hmp_info_qom_tree(Monitor *mon, const QDict *dict)
+{
+ const char *path = qdict_get_try_str(dict, "path");
+ Object *obj;
+ bool ambiguous = false;
+
+ if (path) {
+ obj = object_resolve_path(path, &ambiguous);
+ if (!obj) {
+ monitor_printf(mon, "Path '%s' could not be resolved.\n", path);
+ return;
+ }
+ if (ambiguous) {
+ monitor_printf(mon, "Warning: Path '%s' is ambiguous.\n", path);
+ return;
+ }
+ } else {
+ obj = qdev_get_machine();
+ }
+ print_qom_composition(mon, obj, 0);
+}
--
cgit