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[173.198.77.218]) by smtp.gmail.com with ESMTPSA id j15-20020a62e90f000000b0058bc7453285sm5609308pfh.217.2023.02.22.09.59.59 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 22 Feb 2023 10:00:01 -0800 (PST) Message-ID: <9923e8af-e00e-8105-2bd7-2c902770b1c7@linaro.org> Date: Wed, 22 Feb 2023 07:59:56 -1000 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.7.1 Subject: Re: [PATCH v6 2/4] target/riscv: implement Zicboz extension To: Daniel Henrique Barboza , qemu-devel@nongnu.org Cc: qemu-riscv@nongnu.org, alistair.francis@wdc.com, bmeng@tinylab.org, liweiwei@iscas.ac.cn, zhiwei_liu@linux.alibaba.com, Christoph Muellner , Philipp Tomsich References: <20230217203445.51077-1-dbarboza@ventanamicro.com> <20230217203445.51077-3-dbarboza@ventanamicro.com> <20408b85-2ad0-4cbc-4ccd-c512ba15ba06@linaro.org> <4e3ac25e-6443-9365-66e4-ebd903aa29b9@linaro.org> <4247ca1b-aa4c-9494-e634-c8114758bfcd@ventanamicro.com> Content-Language: en-US From: Richard Henderson In-Reply-To: <4247ca1b-aa4c-9494-e634-c8114758bfcd@ventanamicro.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Received-SPF: pass client-ip=2607:f8b0:4864:20::1031; envelope-from=richard.henderson@linaro.org; helo=mail-pj1-x1031.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=-0.102, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 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 2/21/23 23:37, Daniel Henrique Barboza wrote: > Do you mean that the doc should tell whether the address to be returned in the store > access fault should be aligned and whatnot? Yes. > By reading target/riscv code it seems that all store acess faults are being fired via > raise_mmu_exception(), which is only called in riscv_cpu_tlb_fill(), which in turn > doesn't do any thing special with the address before firing the exception. So I guess > we can assume that badddr = aligned? Well that's certainly how the code is written, yes. r~