From nobody Tue Feb 10 03:39:17 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1635499361927719.0821105329453; Fri, 29 Oct 2021 02:22:41 -0700 (PDT) Received: from localhost ([::1]:51474 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mgO5w-00064F-Ur for importer@patchew.org; Fri, 29 Oct 2021 05:22:40 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:34240) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mgNkB-0004qM-VM for qemu-devel@nongnu.org; Fri, 29 Oct 2021 05:00:12 -0400 Received: from mail-pf1-x431.google.com ([2607:f8b0:4864:20::431]:40912) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1mgNkA-0004aq-Ax for qemu-devel@nongnu.org; Fri, 29 Oct 2021 05:00:11 -0400 Received: by mail-pf1-x431.google.com with SMTP id x7so3657397pfh.7 for ; Fri, 29 Oct 2021 02:00:09 -0700 (PDT) Received: from localhost.localdomain ([2402:7500:46b:ce55:983b:6962:38ac:e1b9]) by smtp.gmail.com with ESMTPSA id t13sm5081477pgn.94.2021.10.29.02.00.06 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 29 Oct 2021 02:00:08 -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 :mime-version:content-transfer-encoding; bh=jJrA47L2UCydyypiiwSu2A5lwraazj94d2ktAj6bj/Y=; b=EvEAKVQWQTK/yFIm2rtuFbXRHTDf/AN+/NNgbuRGumzFJu8ZFa4Ci8lASFluS0i1Is rQDixOgP/dE0m2039jaA1GdDtLEfg+Z2oazzDpXhrvZfung9EmyxbzN8TdQN50BUpj70 6uf2k99p+7MLMYCXYICSGqIqVgLB7vbWZqBHuuq6w+BDvfspHfd9FG5lC0QYbkr7aXpE WDMckaTuJ2PELcgWCEgiqd2VtHqhjtgPDxv5OSQTVEaMWHGELtHjiQEeURyDfI5esJh3 WUgJbAH3zaoZFZ8JCMl9NctY5SaC7jItnRYI/EJLzlCkdwI+ZlJy6eAFKtmc/u/H+88h 1/sA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=jJrA47L2UCydyypiiwSu2A5lwraazj94d2ktAj6bj/Y=; b=WzwBUmglnR9coNpE2O9BSczMq0S8Nti2az6IXBlWei3+ujVGHJtNjtEx5qYxoDWvS3 GBbujo8s3Qo5u2mv/wVBE80h7nePulvJ5nr875vjGQkVZ++uMDtsYJU0T2HBUNAjN9sH fe5FOMm7TR6HeuBDZL+xx7yu776ZpszuqZnj8CEk4t7Vgkr64D26FX44bkGClOUWQVdl N7+wu/gQ8LKLVptKzjiGRpujB/ohFiMejBumgFGgS3HtdlBlXMyUV3hSdGenXdGhrKq3 pQcmImxlCwHKc6rczsI1/RREcJ8atMNwgzDlzKTa4VtzwPG6X7w0Cpl3628M6aSYX9sM IgUg== X-Gm-Message-State: AOAM530YMbKJAISaQZS4VJWB7Nskrf/m57UZQdP6dwT2n3Y1hTfQ4FZP 3ZolYWN8b+aJ1KFBReZfHucauJ1yXNhfZJSi X-Google-Smtp-Source: ABdhPJytrV9/ls/juFxNw4JqfUDgPHCvWiNP3DL1MQnSlzRSBKd5SbINg5PhB4pZxH46t8/wuEMyQw== X-Received: by 2002:a05:6a00:1906:b0:44c:b35d:71a8 with SMTP id y6-20020a056a00190600b0044cb35d71a8mr9773237pfi.51.1635498009019; Fri, 29 Oct 2021 02:00:09 -0700 (PDT) From: frank.chang@sifive.com To: qemu-devel@nongnu.org Subject: [PATCH v9 11/76] target/riscv: rvv-1.0: check MSTATUS_VS when accessing vector csr registers Date: Fri, 29 Oct 2021 16:58:16 +0800 Message-Id: <20211029085922.255197-12-frank.chang@sifive.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20211029085922.255197-1-frank.chang@sifive.com> References: <20211029085922.255197-1-frank.chang@sifive.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable 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::431; envelope-from=frank.chang@sifive.com; helo=mail-pf1-x431.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: qemu-riscv@nongnu.org, Frank Chang , Bin Meng , Richard Henderson , Alistair Francis , Palmer Dabbelt Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1635499363214100001 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 5d1eec1ea05..3dfbc177381 100644 --- a/target/riscv/csr.c +++ b/target/riscv/csr.c @@ -48,6 +48,11 @@ static RISCVException fs(CPURISCVState *env, int csrno) static RISCVException vs(CPURISCVState *env, int csrno) { if (env->misa_ext & RVV) { +#if !defined(CONFIG_USER_ONLY) + if (!env->debugger && !riscv_cpu_vector_enabled(env)) { + return RISCV_EXCP_ILLEGAL_INST; + } +#endif return RISCV_EXCP_NONE; } return RISCV_EXCP_ILLEGAL_INST; --=20 2.25.1