+/* Special values for X86CPUVersion: */
+
+/* Resolve to latest CPU version */
+#define CPU_VERSION_LATEST -1
+
+/*
+ * Resolve to version defined by current machine type.
+ * See x86_cpu_set_default_version()
+ */
+#define CPU_VERSION_AUTO -2
+
+/* Don't resolve to any versioned CPU models, like old QEMU versions */
+#define CPU_VERSION_LEGACY 0
+
+typedef int X86CPUVersion;
+
+/*
+ * Set default CPU model version for CPU models having
+ * version == CPU_VERSION_AUTO.
+ */
+void x86_cpu_set_default_version(X86CPUVersion version);
+