diff options
Diffstat (limited to 'target/arm/helper.c')
| -rw-r--r-- | target/arm/helper.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/target/arm/helper.c b/target/arm/helper.c index 24c069b8ac..0ac867c411 100644 --- a/target/arm/helper.c +++ b/target/arm/helper.c @@ -6725,11 +6725,24 @@ static CPAccessResult access_esm(CPUARMState *env, const ARMCPRegInfo *ri, return CP_ACCESS_OK; } +/* ResetSVEState */ +static void arm_reset_sve_state(CPUARMState *env) +{ + memset(env->vfp.zregs, 0, sizeof(env->vfp.zregs)); + /* Recall that FFR is stored as pregs[16]. */ + memset(env->vfp.pregs, 0, sizeof(env->vfp.pregs)); + vfp_set_fpcr(env, 0x0800009f); +} + void aarch64_set_svcr(CPUARMState *env, uint64_t new, uint64_t mask) { uint64_t change = (env->svcr ^ new) & mask; env->svcr ^= change; + + if (change & R_SVCR_SM_MASK) { + arm_reset_sve_state(env); + } } static void svcr_write(CPUARMState *env, const ARMCPRegInfo *ri, |