pc: Introduce pc-*-2.5 machine classes

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
diff --git a/hw/i386/pc_q35.c b/hw/i386/pc_q35.c
index 966eedb..1b7d3b6 100644
--- a/hw/i386/pc_q35.c
+++ b/hw/i386/pc_q35.c
@@ -370,12 +370,22 @@
     m->no_tco = 0;
 }
 
+static void pc_q35_2_5_machine_options(MachineClass *m)
+{
+    pc_q35_machine_options(m);
+    m->alias = "q35";
+}
+
+DEFINE_Q35_MACHINE(v2_5, "pc-q35-2.5", NULL,
+                   pc_q35_2_5_machine_options);
+
 static void pc_q35_2_4_machine_options(MachineClass *m)
 {
     PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
-    pc_q35_machine_options(m);
+    pc_q35_2_5_machine_options(m);
+    m->alias = NULL;
     pcmc->broken_reserved_end = true;
-    m->alias = "q35";
+    SET_MACHINE_COMPAT(m, PC_COMPAT_2_4);
 }
 
 DEFINE_Q35_MACHINE(v2_4, "pc-q35-2.4", NULL,