Message ID | 20220127063428.30212-2-richard.henderson@linaro.org |
---|---|
State | Superseded |
Headers | show |
Series | target/arm: SVE fixes versus VHE | expand |
On Thu, 27 Jan 2022 at 06:34, Richard Henderson <richard.henderson@linaro.org> wrote: > > When HCR_EL2.{E2H,TGE} == '11', ZCR_EL1 is unused. > > Reported-by: Zenghui Yu <yuzenghui@huawei.com> > Signed-off-by: Richard Henderson <richard.henderson@linaro.org> > --- > target/arm/helper.c | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-) Reviewed-by: Peter Maydell <peter.maydell@linaro.org> thanks -- PMM
On 2022/1/27 14:34, Richard Henderson wrote: > When HCR_EL2.{E2H,TGE} == '11', ZCR_EL1 is unused. > > Reported-by: Zenghui Yu <yuzenghui@huawei.com> > Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Zenghui Yu <yuzenghui@huawei.com>
diff --git a/target/arm/helper.c b/target/arm/helper.c index cfca0f5ba6..d9ee2ba5f4 100644 --- a/target/arm/helper.c +++ b/target/arm/helper.c @@ -6225,7 +6225,8 @@ uint32_t sve_zcr_len_for_el(CPUARMState *env, int el) ARMCPU *cpu = env_archcpu(env); uint32_t zcr_len = cpu->sve_max_vq - 1; - if (el <= 1) { + if (el <= 1 && + (arm_hcr_el2_eff(env) & (HCR_E2H | HCR_TGE)) != (HCR_E2H | HCR_TGE)) { zcr_len = MIN(zcr_len, 0xf & (uint32_t)env->vfp.zcr_el[1]); } if (el <= 2 && arm_feature(env, ARM_FEATURE_EL2)) {
When HCR_EL2.{E2H,TGE} == '11', ZCR_EL1 is unused. Reported-by: Zenghui Yu <yuzenghui@huawei.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- target/arm/helper.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)