diff options
Diffstat (limited to 'target/arm/helper.c')
| -rw-r--r-- | target/arm/helper.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/target/arm/helper.c b/target/arm/helper.c index 63815fc4cf..be67e2c66d 100644 --- a/target/arm/helper.c +++ b/target/arm/helper.c @@ -5361,6 +5361,13 @@ int sve_exception_el(CPUARMState *env, int el) return 0; } +static uint32_t sve_zcr_get_valid_len(ARMCPU *cpu, uint32_t start_len) +{ + uint32_t start_vq = (start_len & 0xf) + 1; + + return arm_cpu_vq_map_next_smaller(cpu, start_vq + 1) - 1; +} + /* * Given that SVE is enabled, return the vector length for EL. */ @@ -5378,7 +5385,8 @@ uint32_t sve_zcr_len_for_el(CPUARMState *env, int el) if (arm_feature(env, ARM_FEATURE_EL3)) { zcr_len = MIN(zcr_len, 0xf & (uint32_t)env->vfp.zcr_el[3]); } - return zcr_len; + + return sve_zcr_get_valid_len(cpu, zcr_len); } static void zcr_write(CPUARMState *env, const ARMCPRegInfo *ri, |