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[81.2.115.148]) by smtp.gmail.com with ESMTPSA id r27sm42606124wrc.55.2019.10.24.09.27.35 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 24 Oct 2019 09:27:35 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:subject:date:message-id:in-reply-to:references:mime-version :content-transfer-encoding; bh=Mk85QypYDHQ0fOkvmDB53SsHXryn+nYp39hNgWX4kxU=; b=AGMo3tQg390u3lF2ARQ4IHu8IMm0Oucb0mlsrmZGQJgUmJup0tAahvuUteScU3QzKy I7X9PQCuME9zG3AdqdaSwB1xXSNBbfyRN89AUmuQdHcgtGvRD2pupSIFleJP/nWowIc1 ZQPaEGZozLONvbxnPM7gfMgpmCKgY+tLYbLSkQX+MYOwaQQM/2fCqAWE4ttCzp/RWAFt boF1XMu0a8T7wRPKDwzzYSWwogeWZ2RJycCiT2ebuie1wHbFE22EqNslClh8GdYKxnYZ 69RBlITJG6Gz+4qQdeY/hOMKOi1mCNR5XNY+tLzmNK3eQlTdI75mWfjRKP6uaUx5qh5K cFww== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=Mk85QypYDHQ0fOkvmDB53SsHXryn+nYp39hNgWX4kxU=; b=bQ+NiFe2/LkYQDIiBSD8Y3a7UrVbLKlmTGBqtF4qbVSF/25ynS6/v+BLXdheGufng3 ekvBcOOG5rafUQnsp7QZHUrLTjQUfc9r1xw4BHkaiBHRu1djAyqIOgc6AIOEa16A1jTe a9QUZ2UFh0jxSIpL+bPzwigegtqq/6FItPiEo19RhMK47B/abBZqO4KVbWkDTD3REguU X7EQgxZ/qpMxVW9UyHhE5751n60trdyxMGwoLo5VzZS2spMjsRZX/WayQcjLdiYrWHMT s7PFE+U1Dpd88m1q9hIflP1xxxP3GN6idgrwCNtsBfNkCNq2I/0Y5wz+dwhKYS6a2mOx tAoQ== X-Gm-Message-State: APjAAAWUuWrwjTcnRx27eAl1xELqWFRprkwlv2Y8ihVfJLHlAKLgkgYz jGPTw685iN2HWvDP1nR3M3bb0fQZ/ho= X-Google-Smtp-Source: APXvYqziKxTBvSMWvjoY5FSX3G0yJ1Qsc0ImpXX8ZUNmUMcC3E2lQjgAoT+M8hCqOh9Zj1yzUcHpKA== X-Received: by 2002:a1c:7719:: with SMTP id t25mr5530502wmi.56.1571934456271; Thu, 24 Oct 2019 09:27:36 -0700 (PDT) From: Peter Maydell To: qemu-devel@nongnu.org Subject: [PULL 07/51] target/arm: Split out rebuild_hflags_m32 Date: Thu, 24 Oct 2019 17:26:40 +0100 Message-Id: <20191024162724.31675-8-peter.maydell@linaro.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20191024162724.31675-1-peter.maydell@linaro.org> References: <20191024162724.31675-1-peter.maydell@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: 2a00:1450:4864:20::341 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: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: pass (identity @linaro.org) From: Richard Henderson Create a function to compute the values of the TBFLAG_A32 bits that will be cached, and are used by M-profile. Reviewed-by: Alex Benn=C3=A9e Signed-off-by: Richard Henderson Message-id: 20191023150057.25731-6-richard.henderson@linaro.org Signed-off-by: Peter Maydell --- target/arm/helper.c | 45 ++++++++++++++++++++++++++++++--------------- 1 file changed, 30 insertions(+), 15 deletions(-) diff --git a/target/arm/helper.c b/target/arm/helper.c index 4c65476d936..d4303420daf 100644 --- a/target/arm/helper.c +++ b/target/arm/helper.c @@ -11083,6 +11083,29 @@ static uint32_t rebuild_hflags_common_32(CPUARMSta= te *env, int fp_el, return rebuild_hflags_common(env, fp_el, mmu_idx, flags); } =20 +static uint32_t rebuild_hflags_m32(CPUARMState *env, int fp_el, + ARMMMUIdx mmu_idx) +{ + uint32_t flags =3D 0; + + if (arm_v7m_is_handler_mode(env)) { + flags =3D FIELD_DP32(flags, TBFLAG_A32, HANDLER, 1); + } + + /* + * v8M always applies stack limit checks unless CCR.STKOFHFNMIGN + * is suppressing them because the requested execution priority + * is less than 0. + */ + if (arm_feature(env, ARM_FEATURE_V8) && + !((mmu_idx & ARM_MMU_IDX_M_NEGPRI) && + (env->v7m.ccr[env->v7m.secure] & R_V7M_CCR_STKOFHFNMIGN_MASK))) { + flags =3D FIELD_DP32(flags, TBFLAG_A32, STACKCHECK, 1); + } + + return rebuild_hflags_common_32(env, fp_el, mmu_idx, flags); +} + static uint32_t rebuild_hflags_a64(CPUARMState *env, int el, int fp_el, ARMMMUIdx mmu_idx) { @@ -11168,7 +11191,13 @@ void cpu_get_tb_cpu_state(CPUARMState *env, target= _ulong *pc, } } else { *pc =3D env->regs[15]; - flags =3D rebuild_hflags_common_32(env, fp_el, mmu_idx, 0); + + if (arm_feature(env, ARM_FEATURE_M)) { + flags =3D rebuild_hflags_m32(env, fp_el, mmu_idx); + } else { + flags =3D rebuild_hflags_common_32(env, fp_el, mmu_idx, 0); + } + flags =3D FIELD_DP32(flags, TBFLAG_A32, THUMB, env->thumb); flags =3D FIELD_DP32(flags, TBFLAG_A32, VECLEN, env->vfp.vec_len); flags =3D FIELD_DP32(flags, TBFLAG_A32, VECSTRIDE, env->vfp.vec_st= ride); @@ -11204,20 +11233,6 @@ void cpu_get_tb_cpu_state(CPUARMState *env, target= _ulong *pc, } } =20 - if (arm_v7m_is_handler_mode(env)) { - flags =3D FIELD_DP32(flags, TBFLAG_A32, HANDLER, 1); - } - - /* v8M always applies stack limit checks unless CCR.STKOFHFNMIGN is - * suppressing them because the requested execution priority is less t= han 0. - */ - if (arm_feature(env, ARM_FEATURE_V8) && - arm_feature(env, ARM_FEATURE_M) && - !((mmu_idx & ARM_MMU_IDX_M_NEGPRI) && - (env->v7m.ccr[env->v7m.secure] & R_V7M_CCR_STKOFHFNMIGN_MASK))) { - flags =3D FIELD_DP32(flags, TBFLAG_A32, STACKCHECK, 1); - } - 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); --=20 2.20.1