diff options
| -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 b9a8f78b2c..d4af8595ca 100644 --- a/target-arm/helper.c +++ b/target-arm/helper.c @@ -1334,9 +1334,11 @@ void HELPER(set_cp15)(CPUState *env, uint32_t insn, uint32_t val) case 2: if (arm_feature(env, ARM_FEATURE_XSCALE)) goto bad_reg; - env->cp15.c1_coproc = val; - /* ??? Is this safe when called from within a TB? */ - tb_flush(env); + if (env->cp15.c1_coproc != val) { + env->cp15.c1_coproc = val; + /* ??? Is this safe when called from within a TB? */ + tb_flush(env); + } break; default: goto bad_reg; |