[PATCH v2 4/7] qemuMonitorJSONMakeCPUModel: Introduce @hv_passthrough argument

[Michal Privoznik]

Apart from setting @migratable prop to the
query-cpu-model-expansion command, we will need @hv-passthrough
so that we can query for expansion of Hyper-V Enlightenments
supported on the current host. The idea is to run:

{
  "execute": "query-cpu-model-expansion",
  "arguments": {
    "type": "full",
    "model": {
      "name": "host",
      "props": {
        "hv-passthrough": true
      }
    }
  }
}

Signed-off-by: Michal Privoznik <mprivozn at redhat.com>
Reviewed-by: Peter Krempa <pkrempa at redhat.com>
---
 src/qemu/qemu_monitor_json.c | 20 +++++++++++++-------
 1 file changed, 13 insertions(+), 7 deletions(-)

diff --git a/src/qemu/qemu_monitor_json.c b/src/qemu/qemu_monitor_json.c
index 9822097bd7..f9928b0393 100644
--- a/src/qemu/qemu_monitor_json.c
+++ b/src/qemu/qemu_monitor_json.c
@@ -4921,7 +4921,8 @@ qemuMonitorJSONParseCPUModelProperty(const char *key,
 
 static virJSONValue *
 qemuMonitorJSONMakeCPUModel(virCPUDef *cpu,
-                            bool migratable)
+                            bool migratable,
+                            bool hv_passthrough)
 {
     g_autoptr(virJSONValue) model = virJSONValueNewObject();
     size_t i;
@@ -4929,7 +4930,7 @@ qemuMonitorJSONMakeCPUModel(virCPUDef *cpu,
     if (virJSONValueObjectAppendString(model, "name", cpu->model) < 0)
         return NULL;
 
-    if (cpu->nfeatures || !migratable) {
+    if (cpu->nfeatures || !migratable || hv_passthrough) {
         g_autoptr(virJSONValue) props = virJSONValueNewObject();
 
         for (i = 0; i < cpu->nfeatures; i++) {
@@ -4951,6 +4952,11 @@ qemuMonitorJSONMakeCPUModel(virCPUDef *cpu,
             return NULL;
         }
 
+        if (hv_passthrough &&
+            virJSONValueObjectAppendBoolean(props, "hv-passthrough", true) < 0) {
+            return NULL;
+        }
+
         if (virJSONValueObjectAppend(model, "props", &props) < 0)
             return NULL;
     }
@@ -5079,7 +5085,7 @@ qemuMonitorJSONGetCPUModelExpansion(qemuMonitor *mon,
 
     *model_info = NULL;
 
-    if (!(model = qemuMonitorJSONMakeCPUModel(cpu, migratable)))
+    if (!(model = qemuMonitorJSONMakeCPUModel(cpu, migratable, false)))
         return -1;
 
     if ((rc = qemuMonitorJSONQueryCPUModelExpansionOne(mon, type, &model, &data)) <= 0)
@@ -5128,8 +5134,8 @@ qemuMonitorJSONGetCPUModelBaseline(qemuMonitor *mon,
     virJSONValue *cpu_props = NULL;
     const char *cpu_name = "";
 
-    if (!(model_a = qemuMonitorJSONMakeCPUModel(cpu_a, true)) ||
-        !(model_b = qemuMonitorJSONMakeCPUModel(cpu_b, true)))
+    if (!(model_a = qemuMonitorJSONMakeCPUModel(cpu_a, true, false)) ||
+        !(model_b = qemuMonitorJSONMakeCPUModel(cpu_b, true, false)))
         return -1;
 
     if (!(cmd = qemuMonitorJSONMakeCommand("query-cpu-model-baseline",
@@ -5166,8 +5172,8 @@ qemuMonitorJSONGetCPUModelComparison(qemuMonitor *mon,
     const char *data_result;
     virJSONValue *data;
 
-    if (!(model_a = qemuMonitorJSONMakeCPUModel(cpu_a, true)) ||
-        !(model_b = qemuMonitorJSONMakeCPUModel(cpu_b, true)))
+    if (!(model_a = qemuMonitorJSONMakeCPUModel(cpu_a, true, false)) ||
+        !(model_b = qemuMonitorJSONMakeCPUModel(cpu_b, true, false)))
         return -1;
 
     if (!(cmd = qemuMonitorJSONMakeCommand("query-cpu-model-comparison",
-- 
2.38.2