diff options
Diffstat (limited to 'target/arm/helper.c')
| -rw-r--r-- | target/arm/helper.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/target/arm/helper.c b/target/arm/helper.c index a6d642f4ae..63a7006561 100644 --- a/target/arm/helper.c +++ b/target/arm/helper.c @@ -10710,13 +10710,13 @@ void HELPER(v7m_msr)(CPUARMState *env, uint32_t maskreg, uint32_t val) env->v7m.primask[M_REG_NS] = val & 1; return; case 0x91: /* BASEPRI_NS */ - if (!env->v7m.secure) { + if (!env->v7m.secure || !arm_feature(env, ARM_FEATURE_M_MAIN)) { return; } env->v7m.basepri[M_REG_NS] = val & 0xff; return; case 0x93: /* FAULTMASK_NS */ - if (!env->v7m.secure) { + if (!env->v7m.secure || !arm_feature(env, ARM_FEATURE_M_MAIN)) { return; } env->v7m.faultmask[M_REG_NS] = val & 1; @@ -10800,9 +10800,15 @@ void HELPER(v7m_msr)(CPUARMState *env, uint32_t maskreg, uint32_t val) env->v7m.primask[env->v7m.secure] = val & 1; break; case 17: /* BASEPRI */ + if (!arm_feature(env, ARM_FEATURE_M_MAIN)) { + goto bad_reg; + } env->v7m.basepri[env->v7m.secure] = val & 0xff; break; case 18: /* BASEPRI_MAX */ + if (!arm_feature(env, ARM_FEATURE_M_MAIN)) { + goto bad_reg; + } val &= 0xff; if (val != 0 && (val < env->v7m.basepri[env->v7m.secure] || env->v7m.basepri[env->v7m.secure] == 0)) { @@ -10810,6 +10816,9 @@ void HELPER(v7m_msr)(CPUARMState *env, uint32_t maskreg, uint32_t val) } break; case 19: /* FAULTMASK */ + if (!arm_feature(env, ARM_FEATURE_M_MAIN)) { + goto bad_reg; + } env->v7m.faultmask[env->v7m.secure] = val & 1; break; case 20: /* CONTROL */ |