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 X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,NICE_REPLY_A, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id B4D2EC433E0 for ; Thu, 6 Aug 2020 18:29:20 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id ED89023119 for ; Thu, 6 Aug 2020 18:29:20 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="rROK1yJy" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org ED89023119 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linaro.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:56490 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1k3kdj-0005Y1-Hl for qemu-devel@archiver.kernel.org; Thu, 06 Aug 2020 14:29:19 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:32940) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1k3kdA-00055V-3G for qemu-devel@nongnu.org; Thu, 06 Aug 2020 14:28:44 -0400 Received: from mail-pj1-x102f.google.com ([2607:f8b0:4864:20::102f]:55957) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1k3kd8-0000m6-HW for qemu-devel@nongnu.org; Thu, 06 Aug 2020 14:28:43 -0400 Received: by mail-pj1-x102f.google.com with SMTP id 2so7288045pjx.5 for ; Thu, 06 Aug 2020 11:28:41 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=subject:to:cc:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=bsRgwOPzrc3FZMWPqVKagC6uUtXuXsg7zOA+N6JF174=; b=rROK1yJyqmMAzGwXFulT1XDpXNxQWHM4flDog7Go7qRVqlNceQyupOiit905J8ifgC LTxX0rbjk4N+mfwSuEvF1G6tJpBAtUk9ELGPZY8SLRlpbFhT3yJkpX+fDFGI4T0P+99P sdWaBbDoCheDWg4DJOn/I20ohbNYuTNW9RAlP3O+ttp37m+O+Gtz7EossYvZbTqbhLuY 6Ni83DOdxkTR3PRTQWlg75XoEyf3pkOVBmzil1x8wghPK3sh9Omwu4n+N8Snvrkethuu BPl65FQefoovuPe7BRR2cKPpzVa3izPFWAN8EyyDdOeDA5HyOYP9XT8qfDhyKo7sMVP1 bexA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=bsRgwOPzrc3FZMWPqVKagC6uUtXuXsg7zOA+N6JF174=; b=qULgeZkzC02qScsE1ns2mlQ+AoriPUi/6BKlz8oqR2eT1FOIMFcXj7FW+2jvjEGom8 U4CL1hguNTgB/cdSf/eCphDVu0ETueCJn1qsQFq/gm6gFynb3FoIVVkzVdzfbCeYzCRS eQ1mV4AFT3DVuggPeG25+v/f7Hjxwgxzgd+gObxDJBgptNZ362C3zXwYqxR04h211JLP pv6B670AsW3TqUEtxQmTZG2udIgnhXZebQu7LdWWn0TnqLhb+wxTiCYrCQyhHYah1q+5 UTKbB+DX7UFsOqTAnqeG2LaEmVjkf0HS8XJBQ9jD7g/e6xLXXzpCHAOlxkJySo/yp4xN O99g== X-Gm-Message-State: AOAM533k6FzSeFe8SUT735jPMbrYnhUI7HwsYnOk1T/eyu98NAGucrsu T1mFkDHuy5+UTYt9MI2IFdkRAw== X-Google-Smtp-Source: ABdhPJw/W6FSLj8laPi2G1JL/3PiG5IinycNQ31aRyhfaAXMr9ISjEFdAOIkAwo5CmCwCX1ELk6Yqw== X-Received: by 2002:a17:902:9683:: with SMTP id n3mr8918726plp.65.1596738520939; Thu, 06 Aug 2020 11:28:40 -0700 (PDT) Received: from [192.168.1.11] ([71.212.141.89]) by smtp.gmail.com with ESMTPSA id a16sm9391802pfr.45.2020.08.06.11.28.39 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 06 Aug 2020 11:28:40 -0700 (PDT) Subject: Re: [RFC v3 10/71] target/riscv: rvv-1.0: check MSTATUS_VS when accessing vector csr registers To: frank.chang@sifive.com, qemu-devel@nongnu.org, qemu-riscv@nongnu.org References: <20200806104709.13235-1-frank.chang@sifive.com> <20200806104709.13235-11-frank.chang@sifive.com> From: Richard Henderson Message-ID: <6d8e542e-129b-9ba1-8022-0c20a7b0e32a@linaro.org> Date: Thu, 6 Aug 2020 11:28:38 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: <20200806104709.13235-11-frank.chang@sifive.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Received-SPF: pass client-ip=2607:f8b0:4864:20::102f; envelope-from=richard.henderson@linaro.org; helo=mail-pj1-x102f.google.com X-detected-operating-system: by eggs.gnu.org: No matching host in p0f cache. That's all we know. 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 autolearn=ham autolearn_force=no X-Spam_action: no action 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: Palmer Dabbelt , Alistair Francis , Sagar Karandikar , Bastian Koppelmann Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On 8/6/20 3:46 AM, frank.chang@sifive.com wrote: > From: Frank Chang > > If VS field is off, accessing vector csr registers should raise an > illegal-instruction exception. > > Signed-off-by: Frank Chang > --- > target/riscv/csr.c | 5 +++++ > 1 file changed, 5 insertions(+) Reviewed-by: Richard Henderson r~