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From: Peter Maydell <peter.maydell@linaro.org>
To: qemu-devel@nongnu.org
Subject: [PULL 01/39] target/arm: Fix sve_zcr_len_for_el for VHE mode running
Date: Tue, 8 Feb 2022 11:39:10 +0000
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From: Richard Henderson <richard.henderson@linaro.org>
When HCR_EL2.{E2H,TGE} =3D=3D '11', ZCR_EL1 is unused.
Reported-by: Zenghui Yu <yuzenghui@huawei.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Zenghui Yu <yuzenghui@huawei.com>
Message-id: 20220127063428.30212-2-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
target/arm/helper.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/target/arm/helper.c b/target/arm/helper.c
index 6dd241fbef3..649958a727d 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 =3D env_archcpu(env);
uint32_t zcr_len =3D cpu->sve_max_vq - 1;
=20
- if (el <=3D 1) {
+ if (el <=3D 1 &&
+ (arm_hcr_el2_eff(env) & (HCR_E2H | HCR_TGE)) !=3D (HCR_E2H | HCR_T=
GE)) {
zcr_len =3D MIN(zcr_len, 0xf & (uint32_t)env->vfp.zcr_el[1]);
}
if (el <=3D 2 && arm_feature(env, ARM_FEATURE_EL2)) {
--=20
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