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[120.151.179.201]) by smtp.gmail.com with ESMTPSA id y20sm4231855pfi.78.2022.01.26.22.34.34 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 26 Jan 2022 22:34:36 -0800 (PST) From: Richard Henderson To: qemu-devel@nongnu.org Subject: [PATCH 1/4] target/arm: Fix sve_zcr_len_for_el for VHE mode running Date: Thu, 27 Jan 2022 17:34:25 +1100 Message-Id: <20220127063428.30212-2-richard.henderson@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220127063428.30212-1-richard.henderson@linaro.org> References: <20220127063428.30212-1-richard.henderson@linaro.org> MIME-Version: 1.0 X-Host-Lookup-Failed: Reverse DNS lookup failed for 2607:f8b0:4864:20::1036 (failed) Received-SPF: pass client-ip=2607:f8b0:4864:20::1036; envelope-from=richard.henderson@linaro.org; helo=mail-pj1-x1036.google.com X-Spam_score_int: -12 X-Spam_score: -1.3 X-Spam_bar: - X-Spam_report: (-1.3 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, PDS_HP_HELO_NORDNS=0.001, RCVD_IN_DNSWL_NONE=-0.0001, RDNS_NONE=0.793, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: yuzenghui@huawei.com, peter.maydell@linaro.org Errors-To: qemu-devel-bounces+patch=linaro.org@nongnu.org Sender: "Qemu-devel" When HCR_EL2.{E2H,TGE} == '11', ZCR_EL1 is unused. Reported-by: Zenghui Yu Signed-off-by: Richard Henderson Reviewed-by: Peter Maydell Reviewed-by: Zenghui Yu --- 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 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)) {