diff options
Diffstat (limited to 'target/arm/cpu64.c')
| -rw-r--r-- | target/arm/cpu64.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/target/arm/cpu64.c b/target/arm/cpu64.c index 1f3406708b..bd33d6cc6e 100644 --- a/target/arm/cpu64.c +++ b/target/arm/cpu64.c @@ -259,6 +259,13 @@ void arm_cpu_sve_finalize(ARMCPU *cpu, Error **errp) /* From now on sve_max_vq is the actual maximum supported length. */ cpu->sve_max_vq = max_vq; cpu->sve_vq.map = vq_map; + + /* FEAT_F64MM requires the existence of a 256-bit vector size. */ + if (max_vq < 2) { + uint64_t t = GET_IDREG(&cpu->isar, ID_AA64ZFR0); + t = FIELD_DP64(t, ID_AA64ZFR0, F64MM, 0); + SET_IDREG(&cpu->isar, ID_AA64ZFR0, t); + } } /* @@ -356,6 +363,7 @@ void arm_cpu_sme_finalize(ARMCPU *cpu, Error **errp) } cpu->sme_vq.map = vq_map; + cpu->sme_max_vq = 32 - clz32(vq_map); } static bool cpu_arm_get_sme(Object *obj, Error **errp) |