conf: Integrate all features ABI checks in the switch

There are a few stray checks which still live outside of the
switch in virDomainDefFeaturesCheckABIStability() for no good
reason. Move them inside the switch, and update the error
messages to be consistent while at it.
Signed-off-by: NAndrea Bolognani <abologna@redhat.com>
Reviewed-by: NJohn Ferlan <jferlan@redhat.com>

src/conf/domain_conf.c

@@ -21328,7 +21328,6 @@ virDomainDefFeaturesCheckABIStability(virDomainDefPtr src,
 
         switch ((virDomainFeature) i) {
         case VIR_DOMAIN_FEATURE_ACPI:
-        case VIR_DOMAIN_FEATURE_APIC:
         case VIR_DOMAIN_FEATURE_PAE:
         case VIR_DOMAIN_FEATURE_HAP:
         case VIR_DOMAIN_FEATURE_VIRIDIAN:
@@ -21338,10 +21337,7 @@ virDomainDefFeaturesCheckABIStability(virDomainDefPtr src,
         case VIR_DOMAIN_FEATURE_PVSPINLOCK:
         case VIR_DOMAIN_FEATURE_PMU:
         case VIR_DOMAIN_FEATURE_VMPORT:
-        case VIR_DOMAIN_FEATURE_GIC:
         case VIR_DOMAIN_FEATURE_SMM:
-        case VIR_DOMAIN_FEATURE_IOAPIC:
-        case VIR_DOMAIN_FEATURE_HPT:
         case VIR_DOMAIN_FEATURE_VMCOREINFO:
             if (src->features[i] != dst->features[i]) {
                 virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
@@ -21368,28 +21364,69 @@ virDomainDefFeaturesCheckABIStability(virDomainDefPtr src,
             }
             break;
 
-        case VIR_DOMAIN_FEATURE_LAST:
+        case VIR_DOMAIN_FEATURE_GIC:
+            if (src->features[i] != dst->features[i] ||
+                src->gic_version != dst->gic_version) {
+                virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
+                               _("State of feature '%s' differs: "
+                                 "source: '%s,%s=%s', destination: '%s,%s=%s'"),
+                               featureName,
+                               virTristateSwitchTypeToString(src->features[i]),
+                               "version", virGICVersionTypeToString(src->gic_version),
+                               virTristateSwitchTypeToString(dst->features[i]),
+                               "version", virGICVersionTypeToString(dst->gic_version));
+                return false;
+            }
             break;
-        }
-    }
 
-    /* APIC EOI */
-    if (src->apic_eoi != dst->apic_eoi) {
-        virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
-                       _("State of APIC EOI differs: "
-                         "source: '%s', destination: '%s'"),
-                       virTristateSwitchTypeToString(src->apic_eoi),
-                       virTristateSwitchTypeToString(dst->apic_eoi));
-        return false;
-    }
+        case VIR_DOMAIN_FEATURE_HPT:
+            if (src->features[i] != dst->features[i] ||
+                src->hpt_resizing != dst->hpt_resizing) {
+                virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
+                               _("State of feature '%s' differs: "
+                                 "source: '%s,%s=%s', destination: '%s,%s=%s'"),
+                               featureName,
+                               virTristateSwitchTypeToString(src->features[i]),
+                               "resizing", virDomainHPTResizingTypeToString(src->hpt_resizing),
+                               virTristateSwitchTypeToString(dst->features[i]),
+                               "resizing", virDomainHPTResizingTypeToString(dst->hpt_resizing));
+                return false;
+            }
+            break;
 
-    /* GIC version */
-    if (src->gic_version != dst->gic_version) {
-        virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
-                       _("Source GIC version '%s' does not match destination '%s'"),
-                       virGICVersionTypeToString(src->gic_version),
-                       virGICVersionTypeToString(dst->gic_version));
-        return false;
+        case VIR_DOMAIN_FEATURE_APIC:
+            if (src->features[i] != dst->features[i] ||
+                src->apic_eoi != dst->apic_eoi) {
+                virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
+                               _("State of feature '%s' differs: "
+                                 "source: '%s,%s=%s', destination: '%s,%s=%s'"),
+                               featureName,
+                               virTristateSwitchTypeToString(src->features[i]),
+                               "eoi", virTristateSwitchTypeToString(src->apic_eoi),
+                               virTristateSwitchTypeToString(dst->features[i]),
+                               "eoi", virTristateSwitchTypeToString(dst->apic_eoi));
+                return false;
+            }
+            break;
+
+        case VIR_DOMAIN_FEATURE_IOAPIC:
+            if (src->features[i] != dst->features[i] ||
+                src->ioapic != dst->ioapic) {
+                virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
+                               _("State of feature '%s' differs: "
+                                 "source: '%s,%s=%s', destination: '%s,%s=%s'"),
+                               featureName,
+                               virTristateSwitchTypeToString(src->features[i]),
+                               "driver", virDomainIOAPICTypeToString(src->ioapic),
+                               virTristateSwitchTypeToString(dst->features[i]),
+                               "driver", virDomainIOAPICTypeToString(dst->ioapic));
+                return false;
+            }
+            break;
+
+        case VIR_DOMAIN_FEATURE_LAST:
+            break;
+        }
     }
 
     /* hyperv */
@@ -21470,28 +21507,6 @@ virDomainDefFeaturesCheckABIStability(virDomainDefPtr src,
         }
     }
 
-    /* ioapic */
-    if (src->ioapic != dst->ioapic) {
-        virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
-                       _("State of ioapic differs: "
-                         "source: '%s', destination: '%s'"),
-                       virDomainIOAPICTypeToString(src->ioapic),
-                       virDomainIOAPICTypeToString(dst->ioapic));
-        return false;
-    }
-
-    /* HPT resizing */
-    if (src->features[VIR_DOMAIN_FEATURE_HPT] == VIR_TRISTATE_SWITCH_ON) {
-        if (src->hpt_resizing != dst->hpt_resizing) {
-            virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
-                           _("HPT resizing configuration differs: "
-                             "source: '%s', destination: '%s'"),
-                           virDomainHPTResizingTypeToString(src->hpt_resizing),
-                           virDomainHPTResizingTypeToString(dst->hpt_resizing));
-            return false;
-        }
-    }
-
     return true;
 }