1 files changed, 27 insertions, 0 deletions
diff --git a/target-ppc/translate_init.c b/target-ppc/translate_init.c
index faac74a33c..56d3b97368 100644
--- a/target-ppc/translate_init.c
+++ b/target-ppc/translate_init.c
@@ -8921,6 +8921,33 @@ static void ppc_cpu_unrealizefn(DeviceState *dev, Error **errp)
     }
 }
 
+int ppc_get_compat_smt_threads(PowerPCCPU *cpu)
+{
+    int ret = smp_threads;
+    PowerPCCPUClass *pcc = POWERPC_CPU_GET_CLASS(cpu);
+
+    switch (cpu->cpu_version) {
+    case CPU_POWERPC_LOGICAL_2_05:
+        ret = 2;
+        break;
+    case CPU_POWERPC_LOGICAL_2_06:
+        ret = 4;
+        break;
+    case CPU_POWERPC_LOGICAL_2_07:
+        ret = 8;
+        break;
+    default:
+        if (pcc->pcr_mask & PCR_COMPAT_2_06) {
+            ret = 4;
+        } else if (pcc->pcr_mask & PCR_COMPAT_2_05) {
+            ret = 2;
+        }
+        break;
+    }
+
+    return MIN(ret, smp_threads);
+}
+
 int ppc_set_compat(PowerPCCPU *cpu, uint32_t cpu_version)
 {
     int ret = 0;