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[97.126.123.70]) by smtp.gmail.com with ESMTPSA id g69sm6824842pje.34.2020.03.12.12.43.10 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 12 Mar 2020 12:43:11 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Subject: [PATCH v6 38/42] target/arm: Set PSTATE.TCO on exception entry Date: Thu, 12 Mar 2020 12:42:15 -0700 Message-Id: <20200312194219.24406-39-richard.henderson@linaro.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200312194219.24406-1-richard.henderson@linaro.org> References: <20200312194219.24406-1-richard.henderson@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2607:f8b0:4864:20::644 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: peter.maydell@linaro.org, qemu-arm@nongnu.org, alex.bennee@linaro.org Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" D1.10 specifies that exception handlers begin with tag checks overridden. Reviewed-by: Peter Maydell Signed-off-by: Richard Henderson --- v2: Only set if MTE feature present. --- target/arm/helper.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/target/arm/helper.c b/target/arm/helper.c index 44e7c0d19b..b38dc74733 100644 --- a/target/arm/helper.c +++ b/target/arm/helper.c @@ -9664,6 +9664,9 @@ static void arm_cpu_do_interrupt_aarch64(CPUState *cs) break; } } + if (cpu_isar_feature(aa64_mte, cpu)) { + new_mode |= PSTATE_TCO; + } pstate_write(env, PSTATE_DAIF | new_mode); env->aarch64 = 1; -- 2.20.1