Re: [PATCH-for-10.1 v7 1/2] qapi/machine: Add @qom-type field to CpuInfoFast structure

[Xiaoyao Li]

On 7/15/2025 5:06 PM, Philippe Mathieu-Daudé wrote:

Knowing the QOM type name of a CPU can be useful,
in particular to infer its model name.

Reviewed-by: Richard Henderson <richard.hender...@linaro.org>
Reviewed-by: Zhao Liu <zhao1....@intel.com>
Signed-off-by: Philippe Mathieu-Daudé <phi...@linaro.org>

Reviewed-by: Xiaoyao Li <xiaoyao...@intel.com>

---
  qapi/machine.json          | 3 +++
  hw/core/machine-qmp-cmds.c | 1 +
  2 files changed, 4 insertions(+)

diff --git a/qapi/machine.json b/qapi/machine.json
index f712e7da6d6..a3f6fcec4d3 100644
--- a/qapi/machine.json
+++ b/qapi/machine.json
@@ -76,6 +76,8 @@
  #
  # @cpu-index: index of the virtual CPU
  #
+# @qom-type: QOM type name of the CPU (since 10.1)
+#
  # @qom-path: path to the CPU object in the QOM tree
  #
  # @thread-id: ID of the underlying host thread
@@ -89,6 +91,7 @@
  ##
  { 'union'         : 'CpuInfoFast',
    'base'          : { 'cpu-index'    : 'int',
+                      'qom-type'     : 'str',
                        'qom-path'     : 'str',
                        'thread-id'    : 'int',
                        '*props'       : 'CpuInstanceProperties',
diff --git a/hw/core/machine-qmp-cmds.c b/hw/core/machine-qmp-cmds.c
index d82043e1c68..5655bfcfee4 100644
--- a/hw/core/machine-qmp-cmds.c
+++ b/hw/core/machine-qmp-cmds.c
@@ -47,6 +47,7 @@ CpuInfoFastList *qmp_query_cpus_fast(Error **errp)
          value->cpu_index = cpu->cpu_index;
          value->qom_path = object_get_canonical_path(OBJECT(cpu));
          value->thread_id = cpu->thread_id;
+        value->qom_type = g_strdup(object_get_typename(OBJECT(cpu)));

if (mc->cpu_index_to_instance_props) {

              CpuInstanceProperties *props;