[libvirt] [PATCH 12/26] qemu_capabilities: Inroduce virQEMUCapsGetCPUModelX86Data

[Jiri Denemark]

The code for transforming qemuMonitorCPUModelInfo data from QEMU into
virCPUDefPtr consumable by virCPU* APIs was hidden inside
virQEMUCapsInitCPUModelX86. This patch moves it into a new function to
make it usable in tests.

Signed-off-by: Jiri Denemark <jdenemar at redhat.com>
---
 src/qemu/qemu_capabilities.c | 50 ++++++++++++++++++++++++------------
 src/qemu/qemu_capspriv.h     |  4 +++
 2 files changed, 38 insertions(+), 16 deletions(-)

diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c
index b48bcbebee..0504d99373 100644
--- a/src/qemu/qemu_capabilities.c
+++ b/src/qemu/qemu_capabilities.c
@@ -2818,28 +2818,17 @@ virQEMUCapsInitCPUModelS390(virQEMUCapsPtr qemuCaps,
 }
 
 
-/**
- * Returns  0 when host CPU model provided by QEMU was filled in qemuCaps,
- *          1 when the caller should fall back to using virCapsPtr->host.cpu,
- *         -1 on error.
- */
-static int
-virQEMUCapsInitCPUModelX86(virQEMUCapsPtr qemuCaps,
-                           virDomainVirtType type,
-                           qemuMonitorCPUModelInfoPtr model,
-                           virCPUDefPtr cpu,
-                           bool migratable)
+virCPUDataPtr
+virQEMUCapsGetCPUModelX86Data(qemuMonitorCPUModelInfoPtr model,
+                              bool migratable)
 {
-    virCPUDataPtr data = NULL;
     unsigned long long sigFamily = 0;
     unsigned long long sigModel = 0;
     unsigned long long sigStepping = 0;
-    int ret = -1;
+    virCPUDataPtr data = NULL;
+    virCPUDataPtr ret = NULL;
     size_t i;
 
-    if (!model)
-        return 1;
-
     if (!(data = virCPUDataNew(VIR_ARCH_X86_64)))
         goto cleanup;
 
@@ -2880,6 +2869,35 @@ virQEMUCapsInitCPUModelX86(virQEMUCapsPtr qemuCaps,
     if (virCPUx86DataSetSignature(data, sigFamily, sigModel, sigStepping) < 0)
         goto cleanup;
 
+    VIR_STEAL_PTR(ret, data);
+
+ cleanup:
+    virCPUDataFree(data);
+    return ret;
+}
+
+
+/**
+ * Returns  0 when host CPU model provided by QEMU was filled in qemuCaps,
+ *          1 when the caller should fall back to using virCapsPtr->host.cpu,
+ *         -1 on error.
+ */
+static int
+virQEMUCapsInitCPUModelX86(virQEMUCapsPtr qemuCaps,
+                           virDomainVirtType type,
+                           qemuMonitorCPUModelInfoPtr model,
+                           virCPUDefPtr cpu,
+                           bool migratable)
+{
+    virCPUDataPtr data = NULL;
+    int ret = -1;
+
+    if (!model)
+        return 1;
+
+    if (!(data = virQEMUCapsGetCPUModelX86Data(model, migratable)))
+        goto cleanup;
+
     if (cpuDecode(cpu, data, virQEMUCapsGetCPUDefinitions(qemuCaps, type)) < 0)
         goto cleanup;
 
diff --git a/src/qemu/qemu_capspriv.h b/src/qemu/qemu_capspriv.h
index b995e4d5d3..c8d45d699b 100644
--- a/src/qemu/qemu_capspriv.h
+++ b/src/qemu/qemu_capspriv.h
@@ -73,6 +73,10 @@ virQEMUCapsSetCPUModelInfo(virQEMUCapsPtr qemuCaps,
                            virDomainVirtType type,
                            qemuMonitorCPUModelInfoPtr modelInfo);
 
+virCPUDataPtr
+virQEMUCapsGetCPUModelX86Data(qemuMonitorCPUModelInfoPtr model,
+                              bool migratable);
+
 virCPUDefPtr
 virQEMUCapsProbeHostCPUForEmulator(virArch hostArch,
                                    virQEMUCapsPtr qemuCaps,
-- 
2.21.0