diff options
Diffstat (limited to 'target-arm/helper.c')
| -rw-r--r-- | target-arm/helper.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/target-arm/helper.c b/target-arm/helper.c index 8132d0c..f1b170d 100644 --- a/target-arm/helper.c +++ b/target-arm/helper.c @@ -838,9 +838,11 @@ void helper_set_cp15(CPUState *env, uint32_t insn, uint32_t val) case 15: /* Implementation specific. */ if (arm_feature(env, ARM_FEATURE_XSCALE)) { if (op2 == 0 && crm == 1) { - /* Changes cp0 to cp13 behavior, so needs a TB flush. */ - tb_flush(env); - env->cp15.c15_cpar = (val & 0x3fff) | 2; + if (env->cp15.c15_cpar != (val & 0x3fff)) { + /* Changes cp0 to cp13 behavior, so needs a TB flush. */ + tb_flush(env); + env->cp15.c15_cpar = val & 0x3fff; + } break; } goto bad_reg; |
