From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id A476BC433F5 for ; Fri, 22 Apr 2022 13:23:10 +0000 (UTC) Received: from localhost ([::1]:47448 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1nhtFd-0006AN-Od for qemu-devel@archiver.kernel.org; Fri, 22 Apr 2022 09:23:09 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:47828) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nhsqO-00085C-88 for qemu-devel@nongnu.org; Fri, 22 Apr 2022 08:57:04 -0400 Received: from mail-yw1-x112f.google.com ([2607:f8b0:4864:20::112f]:38704) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1nhsqM-0002BF-NM for qemu-devel@nongnu.org; Fri, 22 Apr 2022 08:57:03 -0400 Received: by mail-yw1-x112f.google.com with SMTP id 00721157ae682-2ec0bb4b715so84316517b3.5 for ; Fri, 22 Apr 2022 05:57:02 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=sxnAlhLsAhYpkuFgBbKX652E8wBJHGCr9iybK5lVwVc=; b=djhMuqRoBtDGZbZ3Lu93fucQ3DXF/BTWT48yYZeUS8rklCHlfO5iawmZbOgzh49LVf 4Jjo4caqRAqFFFLoTHtGnt6E//OmRoe8CM87tIaaMizOzPLx/bQmOUYUbRs8ELKY9wz3 LA644OwpWiO5yJHHAj6RnvtWk/yh9xXdHNUZ8lmy26lWYIUuBCsOI3pqISWZBldaBbxZ tGfMHj8PnCfRl7U4eLbCXK+dkC0Yk5r1mm9Bn1Jm2SLsE5S8ozvAEgaT8XoZHPgTA3Lx teNlPhJp7CqtwmUMHGiuM7TfPkv7AE3uFY6hPD/AgQqks5oAkaEob0TCzKXTccDoFfLk 9BnA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=sxnAlhLsAhYpkuFgBbKX652E8wBJHGCr9iybK5lVwVc=; b=2B6RrPIp9thpKhbQgwHPwCn2DdLb5elfICg+LOZ8SjE15HRDykey9f4Qx01g2ebjrI 0lEQZsOLlrkaw0glgxI0x/MOkZwa8WkHE0JFlMnb0BiNNDvInKLmvQC8vEwEwr1m2ucO 1hxpiGnWWsY77HobDgXcULZSiaAx0LVwkKr1rs26Ybi0QoNraxRHeFcB3zr6lF+UPdUB uSKuYXmTms5UV1oARJKed38EKOpjCtG+HsK/jTzDEvNjX/vHT/jav4vYkpvLJk8aPfGL W+1RxARsoeki+RtpAMEwjB3Q2LbZFMSyUMon4Bo6OewhCPumVceJWtQ4fEKmn99blVfq upPQ== X-Gm-Message-State: AOAM530dYNvFBatM4GndprplDuxm9BXYxIiLAQA0DWLIzQtNOBcuqLdw IvOUild5dKVmwm30f8poMDpDheoByCIhIiMfFrMmoQ== X-Google-Smtp-Source: ABdhPJy1LuR2xMqH/G9pqhKbMPoUjsAsFNiYNnRTij/9GQ7SqvrWh26kumr01wOd0saSFQ9kLdVq4xP77aGkkdyckg4= X-Received: by 2002:a81:4e11:0:b0:2f1:47a0:5972 with SMTP id c17-20020a814e11000000b002f147a05972mr4780374ywb.469.1650632221555; Fri, 22 Apr 2022 05:57:01 -0700 (PDT) MIME-Version: 1.0 References: <20220421151735.31996-1-richard.henderson@linaro.org> <20220421151735.31996-38-richard.henderson@linaro.org> In-Reply-To: <20220421151735.31996-38-richard.henderson@linaro.org> From: Peter Maydell Date: Fri, 22 Apr 2022 13:56:50 +0100 Message-ID: Subject: Re: [PATCH v7 37/64] target/nios2: Prevent writes to read-only or reserved control fields To: Richard Henderson Content-Type: text/plain; charset="UTF-8" Received-SPF: pass client-ip=2607:f8b0:4864:20::112f; envelope-from=peter.maydell@linaro.org; helo=mail-yw1-x112f.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, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 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: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On Thu, 21 Apr 2022 at 16:50, Richard Henderson wrote: > > Create an array of masks which detail the writable and readonly > bits for each control register. Apply them when writing to > control registers, including the write to status during eret. > > Signed-off-by: Richard Henderson Reviewed-by: Peter Maydell thanks -- PMM