[{"id":3687077,"web_url":"http://patchwork.ozlabs.org/comment/3687077/","msgid":"<83afc091-2825-4a63-af3a-ae5697e02b8f@linaro.org>","list_archive_url":null,"date":"2026-05-06T13:34:21","subject":"Re: [PATCH v5 01/15] target/arm: implement MTE_PERM","submitter":{"id":72104,"url":"http://patchwork.ozlabs.org/api/people/72104/","name":"Richard Henderson","email":"richard.henderson@linaro.org"},"content":"On 5/4/26 10:50, Gabriel Brookman wrote:\n> Introduces a new stage 2 memory attribute, NoTagAccess, that raises a\n> stage 2 data abort on a tag check, tag read, or tag write.\n> \n> Signed-off-by: Gabriel Brookman\n> ---\n> target/arm/cpu-features.h | 5 +++++\n> target/arm/ptw.c | 25 ++++++++++++++++++++++---\n> target/arm/tcg/mte_helper.c | 38 ++++++++++++++++++++++++++++++++++++--\n> 3 files changed, 63 insertions(+), 5 deletions(-)\n\nReviewed-by: Richard Henderson \n\nr~","headers":{"Return-Path":"","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":"patchwork-incoming@legolas.ozlabs.org","Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=linaro.org header.i=@linaro.org header.a=rsa-sha256\n header.s=google header.b=P/hdhFWq;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org\n (client-ip=209.51.188.17; helo=lists1p.gnu.org;\n envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org;\n receiver=patchwork.ozlabs.org)"],"Received":["from lists1p.gnu.org (lists1p.gnu.org [209.51.188.17])\n\t(using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits))\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4g9bw65fQsz1y04\n\tfor ; Wed, 06 May 2026 23:34:46 +1000 (AEST)","from localhost ([::1] helo=lists1p.gnu.org)\n\tby lists1p.gnu.org with esmtp (Exim 4.90_1)\n\t(envelope-from )\n\tid 1wKcOW-0006D3-En; Wed, 06 May 2026 09:34:32 -0400","from eggs.gnu.org ([2001:470:142:3::10])\n by lists1p.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256)\n (Exim 4.90_1) (envelope-from )\n id 1wKcOQ-0006BR-WF\n for qemu-devel@nongnu.org; Wed, 06 May 2026 09:34:27 -0400","from mail-oo1-xc2f.google.com ([2607:f8b0:4864:20::c2f])\n by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128)\n (Exim 4.90_1) (envelope-from )\n id 1wKcOP-0001zr-IY\n for qemu-devel@nongnu.org; Wed, 06 May 2026 09:34:26 -0400","by mail-oo1-xc2f.google.com with SMTP id\n 006d021491bc7-67c250805ccso2590481eaf.1\n for ; Wed, 06 May 2026 06:34:25 -0700 (PDT)","from ?IPV6:2600:381:c938:6375:5307:cd92:1ec8:e891?\n ([2600:381:c938:6375:5307:cd92:1ec8:e891])\n by smtp.gmail.com with ESMTPSA id\n 006d021491bc7-6968947934esm9870521eaf.8.2026.05.06.06.34.22\n (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128);\n Wed, 06 May 2026 06:34:23 -0700 (PDT)"],"DKIM-Signature":"v=1; a=rsa-sha256; c=relaxed/relaxed;\n d=linaro.org; s=google; t=1778074464; x=1778679264; darn=nongnu.org;\n h=content-transfer-encoding:in-reply-to:content-language:from\n :references:cc:to:subject:user-agent:mime-version:date:message-id\n :from:to:cc:subject:date:message-id:reply-to;\n bh=MTBxwUdDAXq/27h3AIzTobRIIsRqrZ0As0hz6xY9Dsk=;\n b=P/hdhFWq1CefuOFM5YVDE9Px03Hx3V4e22r/BoYmrtc8RGPx4Nuf5FDe/ylhb59xXe\n qjmfVrmiuB7CPXbbo8HfsAw8ik+5fgT+20auQ86nlV4lD4lrvD87y1/hZg6aYc04BUDB\n R8yjnirI9p3eV3YHYivyDw76Yn7SB4IyxK1ZnWBJerc3Cc21RemuR671ZVwAe2Q4QBve\n 8Bvtyagi/mQxJFQyjPw2Cefwv+PZG7Npu7I3d1KWCXzIVmo0Jzh1pMpJYjWY5I3SiuZX\n LxCwSzz3FVub8g0w9W29qJOY4ChkeQGcZuHG1vMQlD2o21usSIccPon6Jh8R5KKelPL9\n dpsQ==","X-Google-DKIM-Signature":"v=1; a=rsa-sha256; c=relaxed/relaxed;\n d=1e100.net; s=20251104; t=1778074464; x=1778679264;\n h=content-transfer-encoding:in-reply-to:content-language:from\n :references:cc:to:subject:user-agent:mime-version:date:message-id\n :x-gm-gg:x-gm-message-state:from:to:cc:subject:date:message-id\n :reply-to;\n bh=MTBxwUdDAXq/27h3AIzTobRIIsRqrZ0As0hz6xY9Dsk=;\n b=X02JTGYsfZfFqz105ydlT0O+Wr3tsqA50jydn/H7BMDoEd4V6RtSpn3T5Ic66ZHt07\n tdI042qnWViIzRdWqeQi2OrryL686YCzSw9pgWzEsASO8p74kPLQjAXzRzzJ4geshmx2\n JVvXKYi3AEUZolz0WSiI1X1EXaZe6JvL4FGXGPQ6GzFDSJciX+iFjbzt8dKUQOQZpYwK\n urW6F677OTIxYyq4S7fRRK6jIrfr1q23aEzf8esjvsh6ExgVOayltWPtP8WoKLnxhpBV\n cz4zvCsnRD76YyC7+HuLYC2iGXD9uXk/t6D5rpAYzN6O5RW1FmSuTtRXXdV9p7w9s2ks\n Dvbg==","X-Forwarded-Encrypted":"i=1;\n AFNElJ+qOl6RK0JOtLnwHH7aDnwNl7TjjJdELndyjJVD9DczkLKpJXAUwNHsZunJT+fu7JzE7MMH1dbMYeqR@nongnu.org","X-Gm-Message-State":"AOJu0YwozGVcwecVNB4UK4BK9IsPHDF5A5VvzJCFJnCACLhBb5XPDtqI\n j2BhdigjbLwVOxoXlFp0y3XmqxqsCxlZKwXlA+AVJbLcHwhnE/hwislEZc+ydktq3lI=","X-Gm-Gg":"AeBDieuHMj3UOoJBRBc83uZSHSzGBPufZ4ZMIYLzk53BX/gSntenjfHSYJ6Mo486CF+\n sNwn7UnsT1xs09OxT6ZAAsunrJdIzi68MZcCGNHSeJSTKpBcYeXVOXCR9ZVoC1o3jSoAIRybKa5\n zECZNHrgO75b3pXRLvoTO6Ph2k1UZuZrCwMSSKkQjRMWpWMoSC88zK6uh5Uyc1wPqL8Es16QzB5\n tRXEQCOwOU0KOmw7exIz2825TFl0hbvmc/9SQRBj4d8A7Dy+3AKXumpBCUUNxKE4tlhUZ1Uz816\n zsugLGcMNX8+0G3cuzzq3rzL3di81drVtzadkU4iPnKY1jQfYAT0R+4vjxdZeqGaRhygPZrYKRu\n 9jy+rKWybx+IVsYWjMBB6j7rHdcKvDpcpg7UoAnRibXIc9WbJxVYutwkZX7JIATzCysDGL0+5Dc\n LR4WSX/mqe42dBgdEJvmbNf9ar5Lr96Lv/M3eHZaOINOKqv3uYJw6uE7x6LG20bM+GnixYyS5S3\n jiNeNzOX/3dvKhCy5iTnrdL6fltr+c=","X-Received":"by 2002:a05:6820:2015:b0:694:9cb9:ace9 with SMTP id\n 006d021491bc7-69998d5b2a0mr1532022eaf.52.1778074464013;\n Wed, 06 May 2026 06:34:24 -0700 (PDT)","Message-ID":"<83afc091-2825-4a63-af3a-ae5697e02b8f@linaro.org>","Date":"Wed, 6 May 2026 08:34:21 -0500","MIME-Version":"1.0","User-Agent":"Mozilla Thunderbird","Subject":"Re: [PATCH v5 01/15] target/arm: implement MTE_PERM","To":"Gabriel Brookman , qemu-devel@nongnu.org","Cc":"Peter Maydell ,\n Gustavo Romero , qemu-arm@nongnu.org,\n Laurent Vivier , Helge Deller ,\n Pierrick Bouvier ","References":"<20260504-feat-mte4-v5-0-232a648e63c6@gmail.com>\n <20260504-feat-mte4-v5-1-232a648e63c6@gmail.com>","From":"Richard Henderson ","Content-Language":"en-US","In-Reply-To":"<20260504-feat-mte4-v5-1-232a648e63c6@gmail.com>","Content-Type":"text/plain; charset=UTF-8; format=flowed","Content-Transfer-Encoding":"7bit","Received-SPF":"pass client-ip=2607:f8b0:4864:20::c2f;\n envelope-from=richard.henderson@linaro.org; helo=mail-oo1-xc2f.google.com","X-Spam_score_int":"-20","X-Spam_score":"-2.1","X-Spam_bar":"--","X-Spam_report":"(-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1,\n DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1,\n RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001,\n SPF_PASS=-0.001 autolearn=ham autolearn_force=no","X-Spam_action":"no action","X-BeenThere":"qemu-devel@nongnu.org","X-Mailman-Version":"2.1.29","Precedence":"list","List-Id":"qemu development ","List-Unsubscribe":",\n ","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n ","Errors-To":"qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org","Sender":"qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org"}}]