diff options
Diffstat (limited to 'target/arm/cpu.c')
| -rw-r--r-- | target/arm/cpu.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/target/arm/cpu.c b/target/arm/cpu.c index f61ca660e6..4300de66e2 100644 --- a/target/arm/cpu.c +++ b/target/arm/cpu.c @@ -187,6 +187,13 @@ static void arm_cpu_reset(CPUState *s) if (arm_feature(env, ARM_FEATURE_M_SECURITY)) { env->v7m.secure = true; + } else { + /* This bit resets to 0 if security is supported, but 1 if + * it is not. The bit is not present in v7M, but we set it + * here so we can avoid having to make checks on it conditional + * on ARM_FEATURE_V8 (we don't let the guest see the bit). + */ + env->v7m.aircr = R_V7M_AIRCR_BFHFNMINS_MASK; } /* In v7M the reset value of this bit is IMPDEF, but ARM recommends |