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[114.34.229.221]) by smtp.gmail.com with ESMTPSA id p11sm7083709pjb.31.2021.02.25.19.20.09 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 25 Feb 2021 19:20:11 -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=qE9r5ZjX6mwcZyVZNsOAbjPFyZpzWntWWeWkewrFtBY=; b=aVHGvImYMtJQDpTNiClZlg50dH4M/Y8iC5TxIHzzAGSb5dEj3LfMfINJhRzpJl7Q0B pe4TJKvWLwlOf4l8IlQAUul7oNiz+VZ+ZADorBpLXfLICnLKmmdABi431VnrwNBKjQ7w PVbtbCtK2yOQapZuMEW7IW9jwJy5YniESGuKeT5VUYKgOpYaIhrhPFfBzmZfWySq9UaK +JSrYFKfA73XG44FrylV2HDJ/izsZRfBPiJT4JwuXEn2/T2ICnGigFq2qmnsCe83MSlF 9ku/v+eisgsYAOUNjTMNTxKEie4/EjIgElxJuWgGD3AjCn6APvUxPdpZxIBLW/mboQLo 0oRg== 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=qE9r5ZjX6mwcZyVZNsOAbjPFyZpzWntWWeWkewrFtBY=; b=Iyb1eNDt/F/MJMM2PrKe7XuEqH+9OA9xDbxEftR/KfOeZsf+XOvM/UJQCrP+Takhmo nthUXPfQniscas1zt3HsFKVfPkkMNlup/XMolSyNhRSdEdtEQDl+edVLyPFEgAaU5Nup DG7Axh0dQmU60NzHllT3poVR09CZnGhoNOOyAS0pOpKXjO0PYFygj1w7AgwsJa2adS53 ExIZ9xa8ULFT4m3kvI11xsF4kxUpfbYbh1sf0ucogahwm2sBRlmJ+pJKxAeXdIQuuFBk yjvf/x7WRpOrixiHuqTDpICfH2dKUI8pBQAMX5HabvWR+SzxYYpIxLKL7NyFN9b8Tqij QjtA== X-Gm-Message-State: AOAM533OpVHGLpsu2IcSMcqvyXpxtrxRHr+Favs32iTphJPkLD40+L+f uI+7xxsShhr+3CVWL/jAqVT/Z5blf2h+5w== X-Google-Smtp-Source: ABdhPJy8kZlBjVtBEWJmZFx8t6z0PJdTG25UE4oxiIiBZeifE38hWsUPiSexjk2ltznwiftmFysSyA== X-Received: by 2002:a63:8c0b:: with SMTP id m11mr1007532pgd.306.1614309611361; Thu, 25 Feb 2021 19:20:11 -0800 (PST) From: frank.chang@sifive.com To: qemu-devel@nongnu.org, qemu-riscv@nongnu.org Subject: [PATCH v7 10/75] target/riscv: rvv-1.0: check MSTATUS_VS when accessing vector csr registers Date: Fri, 26 Feb 2021 11:17:54 +0800 Message-Id: <20210226031902.23656-11-frank.chang@sifive.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210226031902.23656-1-frank.chang@sifive.com> References: <20210226031902.23656-1-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::52c; envelope-from=frank.chang@sifive.com; helo=mail-pg1-x52c.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=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: 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 92cf2eedd40..a6a535f7e33 100644 --- a/target/riscv/csr.c +++ b/target/riscv/csr.c @@ -48,6 +48,11 @@ 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 -RISCV_EXCP_ILLEGAL_INST; + } +#endif return 0; } return -RISCV_EXCP_ILLEGAL_INST; --=20 2.17.1