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[174.21.72.5]) by smtp.gmail.com with ESMTPSA id w3-20020a170902a70300b001e83a718d87sm20253971plq.19.2024.04.29.05.21.58 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 29 Apr 2024 05:21:58 -0700 (PDT) Message-ID: <2deb6299-eca1-4611-8977-73ee2d792b5a@linaro.org> Date: Mon, 29 Apr 2024 05:21:55 -0700 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v4 1/1] hw/arm/sbsa-ref: Enable CPU cluster on ARM sbsa machine To: Marcin Juszkiewicz , Xiong Yining , qemu-arm@nongnu.org, qemu-devel@nongnu.org Cc: rad@semihalf.com, peter.maydell@linaro.org, quic_llindhol@quicinc.com References: <20240426073553.326946-1-xiongyining1480@phytium.com.cn> <20240426073553.326946-2-xiongyining1480@phytium.com.cn> <559cc23e-f581-4f0d-bf59-94a516d1ef56@linaro.org> Content-Language: en-US From: Richard Henderson In-Reply-To: <559cc23e-f581-4f0d-bf59-94a516d1ef56@linaro.org> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2607:f8b0:4864:20::636; envelope-from=richard.henderson@linaro.org; helo=mail-pl1-x636.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, SPF_HELO_NONE=0.001, T_SPF_TEMPERROR=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 4/28/24 23:35, Marcin Juszkiewicz wrote: > W dniu 26.04.2024 o 18:06, Richard Henderson pisze: >> >> Isn't this basically what MPIDR_EL1 is supposed to indicate? >> We do not yet implement all of that in QEMU, but should. > > QEMU has socket/cluster/core/thread model which could map to > aff3/aff2/aff1/aff0 (or aff0/1/2/3) of MPIDR_EL1 register, right? But it does not. Yes, I know, but there's patches on list that started to deal with MPIDR.SMT, https://lore.kernel.org/qemu-devel/20240419183135.12276-1-dorjoychy111@gmail.com/ and I suggested that we go whole hog and support all of the -smp options. r~