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Diffstat (limited to 'hw/ppc/spapr_cpu_core.c')
-rw-r--r--hw/ppc/spapr_cpu_core.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/hw/ppc/spapr_cpu_core.c b/hw/ppc/spapr_cpu_core.c
index bf47fbdf6f..45e2f2747f 100644
--- a/hw/ppc/spapr_cpu_core.c
+++ b/hw/ppc/spapr_cpu_core.c
@@ -43,6 +43,8 @@ static void spapr_cpu_reset(void *opaque)
 
     /* Set compatibility mode to match the boot CPU, which was either set
      * by the machine reset code or by CAS. This should never fail.
+     * At startup the value is already set for all the CPUs
+     * but we need this when we hotplug a new CPU
      */
     ppc_set_compat(cpu, POWERPC_CPU(first_cpu)->compat_pvr, &error_abort);