diff --git a/target/ppc/power8-pmu.c b/target/ppc/power8-pmu.c
index 236e8e66e9..d245663158 100644
--- a/target/ppc/power8-pmu.c
+++ b/target/ppc/power8-pmu.c
@@ -222,6 +222,20 @@ static void pmu_update_overflow_timers(CPUPPCState *env)
     }
 }
 
+static void pmu_delete_timers(CPUPPCState *env)
+{
+    QEMUTimer *pmc_overflow_timer;
+    int sprn;
+
+    for (sprn = SPR_POWER_PMC1; sprn <= SPR_POWER_PMC6; sprn++) {
+        pmc_overflow_timer = get_cyc_overflow_timer(env, sprn);
+
+        if (pmc_overflow_timer) {
+            timer_del(pmc_overflow_timer);
+        }
+    }
+}
+
 void helper_store_mmcr0(CPUPPCState *env, target_ulong value)
 {
     bool hflags_pmcc0 = (value & MMCR0_PMCC0) != 0;
@@ -271,8 +285,26 @@ static void fire_PMC_interrupt(PowerPCCPU *cpu)
 {
     CPUPPCState *env = &cpu->env;
 
-    if (!(env->spr[SPR_POWER_MMCR0] & MMCR0_EBE)) {
-        return;
+    pmu_update_cycles(env);
+
+    if (env->spr[SPR_POWER_MMCR0] & MMCR0_FCECE) {
+        env->spr[SPR_POWER_MMCR0] &= ~MMCR0_FCECE;
+        env->spr[SPR_POWER_MMCR0] |= MMCR0_FC;
+
+        /* Changing MMCR0_FC requires a new HFLAGS_INSN_CNT calc */
+        pmu_update_summaries(env);
+
+        /*
+         * Delete all pending timers if we need to freeze
+         * the PMC. We'll restart them when the PMC starts
+         * running again.
+         */
+        pmu_delete_timers(env);
+    }
+
+    if (env->spr[SPR_POWER_MMCR0] & MMCR0_PMAE) {
+        env->spr[SPR_POWER_MMCR0] &= ~MMCR0_PMAE;
+        env->spr[SPR_POWER_MMCR0] |= MMCR0_PMAO;
     }
 
     /* PMC interrupt not implemented yet */