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[114.34.229.221]) by smtp.gmail.com with ESMTPSA id d9sm16478588pgv.45.2020.08.17.01.50.31 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 17 Aug 2020 01:50:33 -0700 (PDT) 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=AQZx9YbV8nCQY8I5II6BVIu2nX25I8qFRmz3CCFuRpo=; b=XTtfh/wxroJgHOBZDSUokB50RLPSUpwR6ywS1/GJ3DYiEoNnBwUIUOqiItqCrLVYKP OOyL/8n0aGIIuQj0aq9M/wAJ7yRmKXrUSra1BMCo8YU6ucu8QAUS64pTlR3kHFdJtHoQ zjNMUA3wxCVK2+8Tl9XmJamV8xNO4ZES5mH+JUtYWTmSUp78+uH0WfV5kerp/xPTB7Ru iZ89wAfJfFv1cG20ymmtfdk0jZepnoTVtJDi/AbiWQLbd9GI9sghu2bSKpJd6sdfB2pl cr4P/zzOXtxp7h3aiL0s0FMcvvmUsNHMK0NVCd2QfLWZjfdVnGXs+XlUtc8y7wzEaYkQ Nxdw== 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=AQZx9YbV8nCQY8I5II6BVIu2nX25I8qFRmz3CCFuRpo=; b=hCKMx5oLtm4o4IQYJ48/A8kvPsq1ewNgyXVkgjfGSvTSCw6MkzGAD46jTOxMRfKpK2 4ZwoXs45OhYviaUwjJKo+0Er/HPDBJmymMXubt1+9bQFPd6J1IHPybWJXzf23xPwjl13 NIkccrZh3MlJBtjR2nSBDXddNo5DNwGzFd3ELJxHHB991pEvgRfHwu3CZkqqQy0iYqK3 +FqM7PsctmbfDDheedMJpo5ctPAnO1pGGqBnvy54bYaXir+3c3mBioneEz9sCSP2bf30 8asO3UpZJx/9z0Aj3mFNp2Mgq1lkdg02O8s2U1ItIzj/D12omUmj3d/Hz/DVAoXLiLVm jO2g== X-Gm-Message-State: AOAM533MUHfFZWthrMCSMLfysZDSLII0Wy9qN6ZWm0BbALzIcBrDGyWV l5mjqZzM76WBKNfPgODOoIGQa5BqrqzPtA== X-Google-Smtp-Source: ABdhPJw4mkAGUeVFxTATUV+fXhN4e0n+dj1wSFDNzoV5MrJwyB83+Xgoes4YgsvWcZT0JSqGh2DAFQ== X-Received: by 2002:a17:90a:1f8c:: with SMTP id x12mr11834765pja.186.1597654233777; Mon, 17 Aug 2020 01:50:33 -0700 (PDT) From: frank.chang@sifive.com To: qemu-devel@nongnu.org, qemu-riscv@nongnu.org Subject: [RFC v4 10/70] target/riscv: rvv-1.0: check MSTATUS_VS when accessing vector csr registers Date: Mon, 17 Aug 2020 16:48:55 +0800 Message-Id: <20200817084955.28793-11-frank.chang@sifive.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200817084955.28793-1-frank.chang@sifive.com> References: <20200817084955.28793-1-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::62a; envelope-from=frank.chang@sifive.com; helo=mail-pl1-x62a.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, URIBL_BLOCKED=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 --- target/riscv/csr.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/target/riscv/csr.c b/target/riscv/csr.c index 6379718e1b6..ed8f6e175f4 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