[PATCH 3/8] plugins: add id_to_plugin_name

[Andrew Fasano]

From: Elysia Witham <elysia.witham@ll.mit.edu>

Plugins will pass their unique id when creating callbacks to
ensure they are associated with the correct plugin. This
internal function resolves those ids to the declared names.

Signed-off-by: Elysia Witham <elysia.witham@ll.mit.edu>
Signed-off-by: Andrew Fasano <fasano@mit.edu>
---
 plugins/core.c   | 12 ++++++++++++
 plugins/plugin.h |  2 ++
 2 files changed, 14 insertions(+)

diff --git a/plugins/core.c b/plugins/core.c
index 5fbdcb5768..6a50b4a6e6 100644
--- a/plugins/core.c
+++ b/plugins/core.c
@@ -248,6 +248,18 @@ int name_to_plugin_version(const char *name)
     return -1;
 }
 
+const char *id_to_plugin_name(qemu_plugin_id_t id)
+{
+    const char *plugin = plugin_id_to_ctx_locked(id)->name;
+    if (plugin) {
+        return plugin;
+    } else {
+        warn_report("Unnamed plugin cannot use QPP, not supported in plugin "
+                    "version. Please update plugin.");
+        return NULL;
+    }
+}
+
 struct plugin_for_each_args {
     struct qemu_plugin_ctx *ctx;
     qemu_plugin_vcpu_simple_cb_t cb;
diff --git a/plugins/plugin.h b/plugins/plugin.h
index ce885bfa98..9e710c23a7 100644
--- a/plugins/plugin.h
+++ b/plugins/plugin.h
@@ -104,4 +104,6 @@ void exec_inline_op(struct qemu_plugin_dyn_cb *cb);
 
 int name_to_plugin_version(const char *name);
 
+const char *id_to_plugin_name(qemu_plugin_id_t id);
+
 #endif /* PLUGIN_H */
-- 
2.34.1