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[97.126.117.207]) by smtp.gmail.com with ESMTPSA id o24sm104287919pfp.135.2019.07.26.10.51.17 (version=TLS1_3 cipher=AEAD-AES256-GCM-SHA384 bits=256/256); Fri, 26 Jul 2019 10:51:17 -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=hWnZNwWI4tI65PwmLTIEUSuYbSd9btmA82x5Eaqyf6M=; b=biC6MyaVGYFUU+cB3fOZf2CH56rijwNd+mbIDwMD/XMxGqHlYgByj4Xxk0GTWLZGkk C8vjr7X8hcWBwDmMYCPejSm1uI3kVaitNj3XhzKz6bPydefsq9J7Ih54rvv3rubBE+QM 86np2g8e+Dy3H1875Gs/DddVboAbbaL7FsPI5gM/2zqQPbXmsvr0ToaYymCxFjkPL1ag I6dNr4ipNEpDbDlVwa79TTrvB8gURN3C0DIbZiBWGcocBwO2Eie+I5Kklnoyg4X9p1pA NeOPc/Ya1lLfInbFUL37f1cZfALcblvODxlEGoIGuyOOjQdLxfa2c2VfelqdLBFp29Nf tofw== 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=hWnZNwWI4tI65PwmLTIEUSuYbSd9btmA82x5Eaqyf6M=; b=KUaOr1/Tb5kERN+F7454wPyTiYeeCx+rQKa5N24pWN6N3W1M1fHpaqtl0qx3CQtK4Y H7UkmTFyieFiWfujmsTxuLETlupysmDQm6I6+KVjKUUA4Ti2uidsRtaUxIdOyrkTlHUp jBhzeiVjaSmJmifvju2hDJ/tFcNy1cj008O3JLMuPMuzh7ciltIYYDUQLD9dJ0+jqr+Q BuGQ8ZF2dxioeXfiHNPsXBCbbUidkL/3sS/deYkg1X8kgNxBmGSMT84YI/sb5KdWtjLt INQj5renwrHSRlVKCJVP1jMDKkItpHA6BdgbU7jZAEWog2PJDyx9VD5E3v/Vh8RIlGm5 rSQw== X-Gm-Message-State: APjAAAVPXHE3U8ML1XUFPXz4Zt8VioJSqoW0ObrJALUwfMBbmQmwQECb c+WkfDTEB/a02BtW/LrBcFtr+pgW1Kc= X-Google-Smtp-Source: APXvYqw8IAKElZE3Lyhhe9Co2Ud0b/NaCL0HySttIbbORMxzrCKhZz+6hKqM8IA6SbXHXqxKM+0NnQ== X-Received: by 2002:a17:902:8207:: with SMTP id x7mr97754983pln.63.1564163478040; Fri, 26 Jul 2019 10:51:18 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Date: Fri, 26 Jul 2019 10:50:02 -0700 Message-Id: <20190726175032.6769-38-richard.henderson@linaro.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190726175032.6769-1-richard.henderson@linaro.org> References: <20190726175032.6769-1-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::641 Subject: [Qemu-devel] [PATCH 37/67] target/arm: Convert Unallocated memory hint 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+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" Signed-off-by: Richard Henderson --- target/arm/translate.c | 8 -------- target/arm/a32-uncond.decode | 8 ++++++++ 2 files changed, 8 insertions(+), 8 deletions(-) diff --git a/target/arm/translate.c b/target/arm/translate.c index 5366741d7b..87cbadc6cb 100644 --- a/target/arm/translate.c +++ b/target/arm/translate.c @@ -10227,14 +10227,6 @@ static void disas_arm_insn(DisasContext *s, unsign= ed int insn) } return; } - if (((insn & 0x0f700000) =3D=3D 0x04100000) || - ((insn & 0x0f700010) =3D=3D 0x06100000)) { - if (!arm_dc_feature(s, ARM_FEATURE_V7MP)) { - goto illegal_op; - } - return; /* v7MP: Unallocated memory hint: must NOP */ - } - if ((insn & 0x0e000f00) =3D=3D 0x0c000100) { if (arm_dc_feature(s, ARM_FEATURE_IWMMXT)) { /* iWMMXt register transfer. */ diff --git a/target/arm/a32-uncond.decode b/target/arm/a32-uncond.decode index aed381cb8e..afa95bf7aa 100644 --- a/target/arm/a32-uncond.decode +++ b/target/arm/a32-uncond.decode @@ -64,3 +64,11 @@ PLI 1111 0100 -101 ---- 1111 ---- ---- ----= # (imm, lit) 7 PLD 1111 0111 -101 ---- 1111 ----- -- 0 ---- # (register) 5= te PLDW 1111 0111 -001 ---- 1111 ----- -- 0 ---- # (register) 7= mp PLI 1111 0110 -101 ---- 1111 ----- -- 0 ---- # (register) 7 + +# Unallocated memory hints +# +# Since these are v7MP nops, and PLDW is v7MP and implemented as nop, +# (ab)use the PLDW helper. + +PLDW 1111 0100 -001 ---- ---- ---- ---- ---- +PLDW 1111 0110 -001 ---- ---- ---- ---0 ---- --=20 2.17.1