gic: Remove VIR_GIC_VERSION_DEFAULT

The QEMU default is GICv2, and some of the code in libvirt
relies on the exact value. Stop pretending that's not the
case and use GICv2 explicitly where needed.
Signed-off-by: NAndrea Bolognani <abologna@redhat.com>

src/qemu/qemu_command.c

@@ -7403,9 +7403,9 @@ qemuBuildMachineCommandLine(virCommandPtr cmd,
                     goto cleanup;
                 }
 
-                /* The default GIC version should not be specified on the
-                 * QEMU commandline for backwards compatibility reasons */
-                if (def->gic_version != VIR_GIC_VERSION_DEFAULT) {
+                /* The default GIC version (GICv2) should not be specified on
+                 * the QEMU commandline for backwards compatibility reasons */
+                if (def->gic_version != VIR_GIC_VERSION_2) {
                     if (!virQEMUCapsGet(qemuCaps,
                                         QEMU_CAPS_MACH_VIRT_GIC_VERSION)) {
                         virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",

src/qemu/qemu_domain.c

@@ -2596,12 +2596,11 @@ qemuDomainDefEnableDefaultFeatures(virDomainDefPtr def,
         def->features[VIR_DOMAIN_FEATURE_GIC] = VIR_TRISTATE_SWITCH_ON;
     }
 
-    /* Use the default GIC version if no version was specified */
+    /* Use the default GIC version (GICv2) if no version was specified */
     if (def->features[VIR_DOMAIN_FEATURE_GIC] == VIR_TRISTATE_SWITCH_ON &&
         def->gic_version == VIR_GIC_VERSION_NONE) {
-        VIR_DEBUG("Using GIC version %s (default)",
-                  virGICVersionTypeToString(VIR_GIC_VERSION_DEFAULT));
-        def->gic_version = VIR_GIC_VERSION_DEFAULT;
+        VIR_DEBUG("Using GIC version 2 (default)");
+        def->gic_version = VIR_GIC_VERSION_2;
     }
 }
 

src/util/virgic.h

@@ -35,9 +35,6 @@ typedef enum {
 
 VIR_ENUM_DECL(virGICVersion);
 
-/* Consider GIC v2 the default */
-# define VIR_GIC_VERSION_DEFAULT VIR_GIC_VERSION_2
-
 typedef enum {
     VIR_GIC_IMPLEMENTATION_NONE = 0,
     VIR_GIC_IMPLEMENTATION_KERNEL = (1 << 1),