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[97.113.7.119]) by smtp.gmail.com with ESMTPSA id k22sm21690743pfk.157.2019.08.20.14.07.28 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 20 Aug 2019 14:07:28 -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; bh=q1Zy0h8c3J4D30AFqGiFYUkCGaChDdqpfUNuVmWLPgM=; b=jN7XTRkfRBVPUpHW/tfohU5SfFaGZUq6eh1Dz11xAiHA3EZLmzD3JG1tVdp9kNpY4s 7iYxabCwzS5xw2bAdWowKbwPiCcCjGK83zfTzBkP3g1rBQm2DW32ZJUm7eH0kb9a55+H HBglPPUKviN8JBvv2O/Nh2hE5/GLSIO26zocAdsm1YeSiQ1K0xODeodUpjVL0dfW+YtO Zv9+XZsBa2KWnZASn1BMq7G8ooDAvpMqRWMdTNStrvTWkxKh+2YglH1dioxBfLscYCgF E1w2+lG2Jdbh8l5rj8NLX9/SdXaGTKp9okMsfyp6UVoRAXZZeqRhIEf2RloiEkI0bS24 n5lw== 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; bh=q1Zy0h8c3J4D30AFqGiFYUkCGaChDdqpfUNuVmWLPgM=; b=UMECAMIYujVfePngteoTfSby5embpuqQ/gw+mnOSs5wYs9CBlc6zf44tDPAy0PJOnF gOStEujpZcp+4CvTxQnbGjL4SYYKg+DLKVmg1sNdcwc/kU/+tSfeOc05wbz5t0fr23Yf HiQw233Rtr50XsfAUhKZsHukTWLY352HdjLdENt2lGq0x0buG9Qw9+ofap0Gx9yKoaph uTUBLb4hk86z2GxOBeHPA15mHgTCgqifIwtuUJ8E2dlr8O497ygJ2nMc0qDYusjxWATv 9S1ZMs1+TxVIqBrH2wjXfdEw02fbsfOEO4U8EvVgCp4yTAaDNxGB66Ub+tCPZuRKkdrz N1KQ== X-Gm-Message-State: APjAAAXjGw96SjcnSmzUSLrxWzlR5k4Jco+yEdqeMLrfdz9L+3jkIgEQ RkP5Kxje2ILvC7DG7rfoumBhmg15ZP0= X-Google-Smtp-Source: APXvYqzV65hMndSONwtC1jVcogCGF5rK5UGArUTcDswWhbPJAR7cyvUbH1MbXOQd/J/cMARyY412Kg== X-Received: by 2002:a63:d84e:: with SMTP id k14mr26449715pgj.234.1566335249619; Tue, 20 Aug 2019 14:07:29 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Date: Tue, 20 Aug 2019 14:07:08 -0700 Message-Id: <20190820210720.18976-6-richard.henderson@linaro.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190820210720.18976-1-richard.henderson@linaro.org> References: <20190820210720.18976-1-richard.henderson@linaro.org> X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2607:f8b0:4864:20::543 Subject: [Qemu-devel] [PATCH v5 05/17] target/arm: Split out rebuild_hflags_m32 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) Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Create a function to compute the values of the TBFLAG_A32 bits that will be cached, and are used by M-profile. Signed-off-by: Richard Henderson --- 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 6570d7e195..c36ec6c530 100644 --- a/target/arm/helper.c +++ b/target/arm/helper.c @@ -11045,6 +11045,29 @@ 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) { @@ -11130,7 +11153,13 @@ 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); @@ -11166,20 +11195,6 @@ 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 2.17.1