diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
index 66b414d..9e860f5 100644
--- a/hw/ppc/spapr.c
+++ b/hw/ppc/spapr.c
@@ -4602,13 +4602,10 @@
     mc->block_default_type = IF_SCSI;
 
     /*
-     * Setting max_cpus to INT32_MAX. Both KVM and TCG max_cpus values
-     * should be limited by the host capability instead of hardcoded.
-     * max_cpus for KVM guests will be checked in kvm_init(), and TCG
-     * guests are welcome to have as many CPUs as the host are capable
-     * of emulate.
+     * While KVM determines max cpus in kvm_init() using kvm_max_vcpus(),
+     * In TCG the limit is restricted by the range of CPU IPIs available.
      */
-    mc->max_cpus = INT32_MAX;
+    mc->max_cpus = SPAPR_IRQ_NR_IPIS;
 
     mc->no_parallel = 1;
     mc->default_boot_order = "";