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([2602:ae:1598:4c01:66a6:82c2:d794:68f6]) by smtp.gmail.com with ESMTPSA id a10-20020a62bd0a000000b0063b86aff031sm1369037pff.108.2023.06.02.14.01.44 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 02 Jun 2023 14:01:44 -0700 (PDT) Message-ID: <01547b15-1a1a-f1e4-627d-3bf2477a69b9@linaro.org> Date: Fri, 2 Jun 2023 14:01:42 -0700 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.11.0 Subject: Re: [PATCH 2/4] target/riscv: Remove check on mode for MPRV Content-Language: en-US To: Weiwei Li , Alistair Francis Cc: qemu-riscv@nongnu.org, qemu-devel@nongnu.org, palmer@dabbelt.com, alistair.francis@wdc.com, bin.meng@windriver.com, dbarboza@ventanamicro.com, zhiwei_liu@linux.alibaba.com, wangjunqiang@iscas.ac.cn, lazyparser@gmail.com References: <20230529121719.179507-1-liweiwei@iscas.ac.cn> <20230529121719.179507-3-liweiwei@iscas.ac.cn> <18e4da39-cbd4-aa60-7628-7105a788b6e8@iscas.ac.cn> From: Richard Henderson In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Received-SPF: pass client-ip=2607:f8b0:4864:20::42c; envelope-from=richard.henderson@linaro.org; helo=mail-pf1-x42c.google.com X-Spam_score_int: -21 X-Spam_score: -2.2 X-Spam_bar: -- X-Spam_report: (-2.2 / 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, NICE_REPLY_A=-0.095, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org On 6/1/23 18:31, Weiwei Li wrote: > Even though MPRV normally can be set to 1 in M mode, it seems possible to set it to 1 in > other mode by gdbstub. That would seem to be a gdbstub bug, since it is cleared on exit from M-mode, and cannot be set again until we re-enter M-mode. r~