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[174.21.142.130]) by smtp.gmail.com with ESMTPSA id d8-20020a636808000000b00398e9c7049bsm14339158pgc.31.2022.04.26.19.23.34 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 26 Apr 2022 19:23:34 -0700 (PDT) Message-ID: Date: Tue, 26 Apr 2022 19:23:32 -0700 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.8.0 Subject: Re: [PATCH v2 39/43] hw/loongarch: Add LoongArch load elf function. Content-Language: en-US To: Xiaojuan Yang , qemu-devel@nongnu.org References: <20220425091027.2877892-1-yangxiaojuan@loongson.cn> <20220425091027.2877892-40-yangxiaojuan@loongson.cn> From: Richard Henderson In-Reply-To: <20220425091027.2877892-40-yangxiaojuan@loongson.cn> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Received-SPF: pass client-ip=2607:f8b0:4864:20::1030; envelope-from=richard.henderson@linaro.org; helo=mail-pj1-x1030.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, NICE_REPLY_A=-0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham 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: , Cc: mark.cave-ayland@ilande.co.uk, gaosong@loongson.cn Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On 4/25/22 02:10, Xiaojuan Yang wrote: > --- a/target/loongarch/cpu.c > +++ b/target/loongarch/cpu.c > @@ -525,8 +525,12 @@ static const MemoryRegionOps loongarch_qemu_ops = { > static void do_cpu_reset(void *opaque) > { > LoongArchCPU *cpu = opaque; > + CPULoongArchState *env = &cpu->env; > > cpu_reset(CPU(cpu)); > + if (env->load_elf) { > + cpu_set_pc(CPU(cpu), env->elf_address); > + } I guess this is one way to do it, but I did show you a way completely within the board code. r~