[libvirt] [PATCH 1/2] qemu: Separate fetching CPU definitions from filling qemuCaps

[Jiri Denemark]

virQEMUCapsProbeQMPCPUDefinitions is now a small wrapper which fills in
qemuCaps with CPU models fetched by virQEMUCapsFetchCPUDefinitions.

Signed-off-by: Jiri Denemark <jdenemar at redhat.com>
---
 src/qemu/qemu_capabilities.c | 59 +++++++++++++++++++++++++++-----------------
 src/qemu/qemu_capabilities.h |  1 +
 2 files changed, 38 insertions(+), 22 deletions(-)

diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c
index 29714855b0..8c65de956e 100644
--- a/src/qemu/qemu_capabilities.c
+++ b/src/qemu/qemu_capabilities.c
@@ -2956,30 +2956,19 @@ virQEMUCapsProbeQMPMachineTypes(virQEMUCapsPtr qemuCaps,
 }
 
 
-int
-virQEMUCapsProbeQMPCPUDefinitions(virQEMUCapsPtr qemuCaps,
-                                  qemuMonitorPtr mon,
-                                  bool tcg)
+virDomainCapsCPUModelsPtr
+virQEMUCapsFetchCPUDefinitions(qemuMonitorPtr mon)
 {
-    virDomainCapsCPUModelsPtr models;
-    qemuMonitorCPUDefInfoPtr *cpus;
-    int ncpus;
-    int ret = -1;
+    virDomainCapsCPUModelsPtr models = NULL;
+    qemuMonitorCPUDefInfoPtr *cpus = NULL;
+    int ncpus = 0;
     size_t i;
 
-    if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_QUERY_CPU_DEFINITIONS))
-        return 0;
-
     if ((ncpus = qemuMonitorGetCPUDefinitions(mon, &cpus)) < 0)
-        return -1;
+        goto error;
 
     if (!(models = virDomainCapsCPUModelsNew(ncpus)))
-        goto cleanup;
-
-    if (tcg || !virQEMUCapsGet(qemuCaps, QEMU_CAPS_KVM))
-        qemuCaps->tcgCPUModels = models;
-    else
-        qemuCaps->kvmCPUModels = models;
+        goto error;
 
     for (i = 0; i < ncpus; i++) {
         virDomainCapsCPUUsable usable = VIR_DOMCAPS_CPU_USABLE_UNKNOWN;
@@ -2991,18 +2980,44 @@ virQEMUCapsProbeQMPCPUDefinitions(virQEMUCapsPtr qemuCaps,
 
         if (virDomainCapsCPUModelsAddSteal(models, &cpus[i]->name, usable,
                                            &cpus[i]->blockers) < 0)
-            goto cleanup;
+            goto error;
     }
 
-    ret = 0;
-
  cleanup:
     for (i = 0; i < ncpus; i++)
         qemuMonitorCPUDefInfoFree(cpus[i]);
     VIR_FREE(cpus);
-    return ret;
+    return models;
+
+ error:
+    virObjectUnref(models);
+    models = NULL;
+    goto cleanup;
 }
 
+
+int
+virQEMUCapsProbeQMPCPUDefinitions(virQEMUCapsPtr qemuCaps,
+                                  qemuMonitorPtr mon,
+                                  bool tcg)
+{
+    virDomainCapsCPUModelsPtr models = NULL;
+
+    if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_QUERY_CPU_DEFINITIONS))
+        return 0;
+
+    if (!(models = virQEMUCapsFetchCPUDefinitions(mon)))
+        return -1;
+
+    if (tcg || !virQEMUCapsGet(qemuCaps, QEMU_CAPS_KVM))
+        qemuCaps->tcgCPUModels = models;
+    else
+        qemuCaps->kvmCPUModels = models;
+
+    return 0;
+}
+
+
 static int
 virQEMUCapsProbeQMPHostCPU(virQEMUCapsPtr qemuCaps,
                            qemuMonitorPtr mon,
diff --git a/src/qemu/qemu_capabilities.h b/src/qemu/qemu_capabilities.h
index 9f239a0ecf..e73dbaa557 100644
--- a/src/qemu/qemu_capabilities.h
+++ b/src/qemu/qemu_capabilities.h
@@ -485,6 +485,7 @@ int virQEMUCapsAddCPUDefinitions(virQEMUCapsPtr qemuCaps,
                                  virDomainCapsCPUUsable usable);
 virDomainCapsCPUModelsPtr virQEMUCapsGetCPUDefinitions(virQEMUCapsPtr qemuCaps,
                                                        virDomainVirtType type);
+virDomainCapsCPUModelsPtr virQEMUCapsFetchCPUDefinitions(qemuMonitorPtr mon);
 
 typedef enum {
     /* Host CPU definition reported in domain capabilities. */
-- 
2.15.1