diff options
Diffstat (limited to 'target')
| -rw-r--r-- | target/arm/helper.c | 17 |
1 files changed, 7 insertions, 10 deletions
diff --git a/target/arm/helper.c b/target/arm/helper.c index f1b20de..b792694 100644 --- a/target/arm/helper.c +++ b/target/arm/helper.c @@ -1094,7 +1094,7 @@ static bool pmu_counter_enabled(CPUARMState *env, uint8_t counter) { uint64_t filter; bool e, p, u, nsk, nsu, nsh, m; - bool enabled, prohibited, filtered; + bool enabled, prohibited = false, filtered; bool secure = arm_is_secure(env); int el = arm_current_el(env); uint64_t mdcr_el2 = arm_mdcr_el2_eff(env); @@ -1112,15 +1112,12 @@ static bool pmu_counter_enabled(CPUARMState *env, uint8_t counter) } enabled = e && (env->cp15.c9_pmcnten & (1 << counter)); - if (!secure) { - if (el == 2 && (counter < hpmn || counter == 31)) { - prohibited = mdcr_el2 & MDCR_HPMD; - } else { - prohibited = false; - } - } else { - prohibited = arm_feature(env, ARM_FEATURE_EL3) && - !(env->cp15.mdcr_el3 & MDCR_SPME); + /* Is event counting prohibited? */ + if (el == 2 && (counter < hpmn || counter == 31)) { + prohibited = mdcr_el2 & MDCR_HPMD; + } + if (secure) { + prohibited = prohibited || !(env->cp15.mdcr_el3 & MDCR_SPME); } if (prohibited && counter == 31) { |