Introduce virCPUGetVendorForModel and use it in QEMU driver

So far QEMU driver does not get CPU model vendor from QEMU directly and
it has to ask the CPU driver for the info stored in CPU map.

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>

src/cpu/cpu.c

@@ -923,6 +923,31 @@ virCPUGetModels(virArch arch, char ***models)
 }
 
 
+/** virCPUGetVendorForModel:
+ *
+ * @arch: CPU architecture
+ * @model: CPU model to be checked
+ *
+ * Returns @model's vendor or NULL if the vendor is unknown.
+ */
+const char *
+virCPUGetVendorForModel(virArch arch,
+                        const char *model)
+{
+    struct cpuArchDriver *driver;
+
+    VIR_DEBUG("arch=%s", virArchToString(arch));
+
+    if (!(driver = cpuGetSubDriver(arch)))
+        return NULL;
+
+    if (!driver->getVendorForModel)
+        return NULL;
+
+    return driver->getVendorForModel(model);
+}
+
+
 /**
  * virCPUTranslate:
  *

src/cpu/cpu.h

@@ -105,6 +105,9 @@ typedef virCPUData *
 typedef int
 (*virCPUArchGetModels)(char ***models);
 
+typedef const char *
+(*virCPUArchGetVendorForModel)(const char *model);
+
 typedef int
 (*virCPUArchTranslate)(virCPUDef *cpu,
                        virDomainCapsCPUModels *models);
@@ -150,6 +153,7 @@ struct cpuArchDriver {
     virCPUArchDataFormat dataFormat;
     virCPUArchDataParse dataParse;
     virCPUArchGetModels getModels;
+    virCPUArchGetVendorForModel getVendorForModel;
     virCPUArchTranslate translate;
     virCPUArchConvertLegacy convertLegacy;
     virCPUArchExpandFeatures expandFeatures;
@@ -262,6 +266,10 @@ virCPUModelIsAllowed(const char *model,
 int
 virCPUGetModels(virArch arch, char ***models);
 
+const char *
+virCPUGetVendorForModel(virArch arch,
+                        const char *model);
+
 int
 virCPUTranslate(virArch arch,
                 virCPUDef *cpu,

src/libvirt_private.syms

@@ -1500,6 +1500,7 @@ virCPUExpandFeatures;
 virCPUGetHost;
 virCPUGetHostIsSupported;
 virCPUGetModels;
+virCPUGetVendorForModel;
 virCPUProbeHost;
 virCPUTranslate;
 virCPUUpdate;

src/qemu/qemu_capabilities.c

@@ -2175,9 +2175,11 @@ virQEMUCapsAddCPUDefinitions(virQEMUCaps *qemuCaps,
 
 
 static virDomainCapsCPUModels *
-virQEMUCapsCPUDefsToModels(qemuMonitorCPUDefs *defs,
+virQEMUCapsCPUDefsToModels(virArch arch,
+                           qemuMonitorCPUDefs *defs,
                            const char **modelAllowed,
-                           const char **modelForbidden)
+                           const char **modelForbidden,
+                           bool vendors)
 {
     virDomainCapsCPUModels *cpuModels = NULL;
     size_t i;
@@ -2187,6 +2189,7 @@ virQEMUCapsCPUDefsToModels(qemuMonitorCPUDefs *defs,
 
     for (i = 0; i < defs->ncpus; i++) {
         qemuMonitorCPUDefInfo *cpu = defs->cpus + i;
+        char *vendor = NULL;
 
         if (modelAllowed && !g_strv_contains(modelAllowed, cpu->name))
             continue;
@@ -2194,8 +2197,11 @@ virQEMUCapsCPUDefsToModels(qemuMonitorCPUDefs *defs,
         if (modelForbidden && g_strv_contains(modelForbidden, cpu->name))
             continue;
 
+        if (vendors)
+            vendor = g_strdup(virCPUGetVendorForModel(arch, cpu->name));
+
         virDomainCapsCPUModelsAdd(cpuModels, cpu->name, cpu->usable,
-                                  cpu->blockers, cpu->deprecated, NULL);
+                                  cpu->blockers, cpu->deprecated, vendor);
     }
 
     return cpuModels;
@@ -2213,7 +2219,8 @@ virQEMUCapsGetCPUModels(virQEMUCaps *qemuCaps,
     if (!(defs = virQEMUCapsGetAccel(qemuCaps, type)->cpuModels))
         return NULL;
 
-    return virQEMUCapsCPUDefsToModels(defs, modelAllowed, modelForbidden);
+    return virQEMUCapsCPUDefsToModels(qemuCaps->arch, defs,
+                                      modelAllowed, modelForbidden, true);
 }
 
 
@@ -2946,7 +2953,8 @@ virQEMUCapsFetchCPUModels(qemuMonitor *mon,
     if (virQEMUCapsFetchCPUDefinitions(mon, arch, &defs) < 0)
         return -1;
 
-    if (defs && !(*cpuModels = virQEMUCapsCPUDefsToModels(defs, NULL, NULL)))
+    if (defs &&
+        !(*cpuModels = virQEMUCapsCPUDefsToModels(arch, defs, NULL, NULL, false)))
         return -1;
 
     return 0;