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[114.34.229.221]) by smtp.gmail.com with ESMTPSA id h16sm2865664pgd.62.2021.01.12.01.40.35 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 12 Jan 2021 01:40:36 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sifive.com; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=oWqS09mobglarDIvNUpVzSMzAwW7kec1mgSd/2WbS6Y=; b=kttpHEH22kJucC7tEmba9LWaBPjcVe9AMA0rScyRGnVpqnVeCKFiQD1y8p3XrnYU8P UeEHSllzNOcPtvUS22M08iWPcVfDsYKgyNLDr+drH0ACDtO/LlvS9hS9EfOObxOzn6ux 7A89YPHcCkRrDh11tVOM+hgHE2nQlVuJq8JdsnG7n7N4zGXD2pbjzS6eWdEWr3qT3Bad 04WAtvJIzwrKp/yvNiMKFORg1DzWTnAQm1Lqt6WhY+ns3dXCZgHLqHShnbDHo8tsALPo YbHwNiQRQSS+4NLkZHwgMaPhOQTOMy/azgDY5LXbe0/2IsMOfXyvmQVgs7LWltaTPNEy BEBA== 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=oWqS09mobglarDIvNUpVzSMzAwW7kec1mgSd/2WbS6Y=; b=CPEMPnxAVofN67JOE63HjWpjaUsp7RG04/A+EYOFAokd/Ohcutsk9vZ47yXaal8DRv fLz2L30URmgwtTSCz/7FvXTDw+OwuMPHrJqEih7kjR04Y2UawD6Wu7UFB9BMzQTy91Z5 9fTgOnaKx6JbiTaThCzgB/GdyBQBhNjwHbP555qI3qcQTLA9Qv98QQabmRyHftwAtSrT 5HDMqwizW20Vf6GdDrZXbfdi7cKcNmenhuSSvas4uHNueN+kvxBq2SNrZzT2tuPuh/Sr WuoktanwCjdaQJJCzI1JEjTom0L9+AyGxngXmgCc2WmuPXw4na9Ef0XGsmaXZ3OGA3XT MBhw== X-Gm-Message-State: AOAM531PKDqo6MfElmUAmQNNcP7Vwu5n8xz4xZuR9zljj1yJADU/SypC F/Qo3LpDVek4P71zFfcFhDuNEyszZqJgyVLN X-Google-Smtp-Source: ABdhPJxZppFelwXvnZW+y3FAF3oYKDSQrt3h1Hzz1QgZLyzr7ZLH1IvNj6YNug6mvdQ8xj8LpcfqJA== X-Received: by 2002:a17:902:242:b029:dc:3baf:2033 with SMTP id 60-20020a1709020242b02900dc3baf2033mr3964228plc.36.1610444437435; Tue, 12 Jan 2021 01:40:37 -0800 (PST) From: frank.chang@sifive.com To: qemu-devel@nongnu.org, qemu-riscv@nongnu.org Subject: [PATCH v6 10/72] target/riscv: rvv-1.0: check MSTATUS_VS when accessing vector csr registers Date: Tue, 12 Jan 2021 17:38:44 +0800 Message-Id: <20210112093950.17530-11-frank.chang@sifive.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210112093950.17530-1-frank.chang@sifive.com> References: <20210112093950.17530-1-frank.chang@sifive.com> Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2607:f8b0:4864:20::1031; envelope-from=frank.chang@sifive.com; helo=mail-pj1-x1031.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 autolearn=unavailable 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: Frank Chang , Alistair Francis , Palmer Dabbelt , Sagar Karandikar , Bastian Koppelmann 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" From: Frank Chang If VS field is off, accessing vector csr registers should raise an illegal-instruction exception. Signed-off-by: Frank Chang Reviewed-by: Richard Henderson Reviewed-by: Alistair Francis --- target/riscv/csr.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/target/riscv/csr.c b/target/riscv/csr.c index 7a6554447af..30f1593efb1 100644 --- a/target/riscv/csr.c +++ b/target/riscv/csr.c @@ -56,6 +56,11 @@ static int fs(CPURISCVState *env, int csrno) static int vs(CPURISCVState *env, int csrno) { if (env->misa & RVV) { +#if !defined(CONFIG_USER_ONLY) + if (!env->debugger && !riscv_cpu_vector_enabled(env)) { + return -1; + } +#endif return 0; } return -1; --=20 2.17.1