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[97.113.7.119]) by smtp.gmail.com with ESMTPSA id d20sm7857534pfq.88.2019.10.18.10.44.38 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 18 Oct 2019 10:44:38 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=O5qTDR4/yunqOnDsae4ZjoUIG4TsLVXzaOK/t5hnYkI=; b=a/O1FjpnSDTBNHQcZsOznehraztcF4C6rwZ0hMgYS0GxM0Q9Uv47pb7bArYiHwVrfM egAxl6bcj0Bc42hadAgWZBDyFGB3rQTNYK9rIiw5YbmA+nOgYpI8jn0PCU4ksoAitWzl LdoePutqQzeq72tt69Lsa0r4mllzQ5boORY8Jor9ZbL0MN8wlvT395OOnWriGRBl0f2B cPJaHEKQp5kRTlCYWra4qFZrPqWwEVEkcOxAVpOWfK5lWKKtcOoYHmBJ9Bp+pdLkSKgS oe9bnAZq15bf06y6YCp0Ec16BX0hZKrrtE++caHrXv2AUBYJ4ay6MAu1M9jPsD8u27iz BDLQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=O5qTDR4/yunqOnDsae4ZjoUIG4TsLVXzaOK/t5hnYkI=; b=cGgcpIB5tKurg40aNrSz0+sHqNFCeieYfu7RSug8bP3lJLNfAj+NkSzIbqEBjLgyar nlrUK2EUZd7AU4uT1gfSzc/yCH1jla+xP7fXylNiK5GASCSFIqFvWhKCZm+5Ql8sxb4H M26g8/AgIkrf6CX+4MpDn8TSJ6KjQ18aTaAw31ZwxZQ1rjOFDEVzCj6boYA/GxogvMbU Mq/gY2njltdhwYe9ZvEg1apLFvI7+rIi7bNM5z5NMA/kwrVj610GMLZhT3m6NIv/dXw9 JhJnlXBKp/P585tOnx0FUflSIjO/FP656cBXVB7CssHcjxTAQ98/zBMO1MoXO9K1DC+J kHLQ== X-Gm-Message-State: APjAAAX3FUEtpF1oqH/X1oesqXMM14Y4diVVfdG1CDKRVgE7AQ6f/sY1 gYgyaVkCckUWjbUzx5brPfCPNY4qKig= X-Google-Smtp-Source: APXvYqw4DDetWHJk0AKxMja5lHldRP/1vbsNWG3YISsrohV7ldYOD3LCuyqoF1bmYaQXscyfYv2/5w== X-Received: by 2002:aa7:8691:: with SMTP id d17mr8194090pfo.152.1571420679438; Fri, 18 Oct 2019 10:44:39 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Subject: [PATCH v8 06/22] target/arm: Reduce tests vs M-profile in cpu_get_tb_cpu_state Date: Fri, 18 Oct 2019 10:44:15 -0700 Message-Id: <20191018174431.1784-7-richard.henderson@linaro.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20191018174431.1784-1-richard.henderson@linaro.org> References: <20191018174431.1784-1-richard.henderson@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2607:f8b0:4864:20::442 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 Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Hoist the computation of some TBFLAG_A32 bits that only apply to M-profile under a single test for ARM_FEATURE_M. Reviewed-by: Alex Benn=C3=A9e Signed-off-by: Richard Henderson --- target/arm/helper.c | 49 +++++++++++++++++++++------------------------ 1 file changed, 23 insertions(+), 26 deletions(-) diff --git a/target/arm/helper.c b/target/arm/helper.c index d4303420da..296a4b2232 100644 --- a/target/arm/helper.c +++ b/target/arm/helper.c @@ -11194,6 +11194,29 @@ void cpu_get_tb_cpu_state(CPUARMState *env, target= _ulong *pc, =20 if (arm_feature(env, ARM_FEATURE_M)) { flags =3D rebuild_hflags_m32(env, fp_el, mmu_idx); + + if (arm_feature(env, ARM_FEATURE_M_SECURITY) && + FIELD_EX32(env->v7m.fpccr[M_REG_S], V7M_FPCCR, S) + !=3D env->v7m.secure) { + flags =3D FIELD_DP32(flags, TBFLAG_A32, FPCCR_S_WRONG, 1); + } + + if ((env->v7m.fpccr[env->v7m.secure] & R_V7M_FPCCR_ASPEN_MASK)= && + (!(env->v7m.control[M_REG_S] & R_V7M_CONTROL_FPCA_MASK) || + (env->v7m.secure && + !(env->v7m.control[M_REG_S] & R_V7M_CONTROL_SFPA_MASK)))= ) { + /* + * ASPEN is set, but FPCA/SFPA indicate that there is no + * active FP context; we must create a new FP context befo= re + * executing any FP insn. + */ + flags =3D FIELD_DP32(flags, TBFLAG_A32, NEW_FP_CTXT_NEEDED= , 1); + } + + bool is_secure =3D env->v7m.fpccr[M_REG_S] & R_V7M_FPCCR_S_MAS= K; + if (env->v7m.fpccr[is_secure] & R_V7M_FPCCR_LSPACT_MASK) { + flags =3D FIELD_DP32(flags, TBFLAG_A32, LSPACT, 1); + } } else { flags =3D rebuild_hflags_common_32(env, fp_el, mmu_idx, 0); } @@ -11233,32 +11256,6 @@ void cpu_get_tb_cpu_state(CPUARMState *env, target= _ulong *pc, } } =20 - if (arm_feature(env, ARM_FEATURE_M_SECURITY) && - FIELD_EX32(env->v7m.fpccr[M_REG_S], V7M_FPCCR, S) !=3D env->v7m.se= cure) { - flags =3D FIELD_DP32(flags, TBFLAG_A32, FPCCR_S_WRONG, 1); - } - - if (arm_feature(env, ARM_FEATURE_M) && - (env->v7m.fpccr[env->v7m.secure] & R_V7M_FPCCR_ASPEN_MASK) && - (!(env->v7m.control[M_REG_S] & R_V7M_CONTROL_FPCA_MASK) || - (env->v7m.secure && - !(env->v7m.control[M_REG_S] & R_V7M_CONTROL_SFPA_MASK)))) { - /* - * ASPEN is set, but FPCA/SFPA indicate that there is no active - * FP context; we must create a new FP context before executing - * any FP insn. - */ - flags =3D FIELD_DP32(flags, TBFLAG_A32, NEW_FP_CTXT_NEEDED, 1); - } - - if (arm_feature(env, ARM_FEATURE_M)) { - bool is_secure =3D env->v7m.fpccr[M_REG_S] & R_V7M_FPCCR_S_MASK; - - if (env->v7m.fpccr[is_secure] & R_V7M_FPCCR_LSPACT_MASK) { - flags =3D FIELD_DP32(flags, TBFLAG_A32, LSPACT, 1); - } - } - if (!arm_feature(env, ARM_FEATURE_M)) { int target_el =3D arm_debug_target_el(env); =20 --=20 2.17.1