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([2001:b07:6468:f312:9af8:e5f5:7516:fa89]) by smtp.googlemail.com with ESMTPSA id z6-20020a17090665c600b00968382ebf40sm1100404ejn.40.2023.05.09.02.42.31 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 09 May 2023 02:42:32 -0700 (PDT) Message-ID: Date: Tue, 9 May 2023 11:42:30 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.10.0 Subject: Re: [PATCH 05/22] hw/arm: Select VIRTIO_NET for virt machine To: Peter Maydell Cc: Fabiano Rosas , =?UTF-8?Q?Alex_Benn=c3=a9e?= , qemu-devel , Laurent Vivier , Artyom Tarasenko , "Edgar E. Iglesias" , Wainer dos Santos Moschetta , Thomas Huth , Leif Lindholm , Gerd Hoffmann , Helge Deller , Xiaojuan Yang , Stefan Hajnoczi , Cleber Rosa , Eduardo Habkost , Juan Quintela , John Snow , Yoshinori Sato , =?UTF-8?Q?C=c3=a9dric_Le_Goater?= , Ilya Leoshkevich , Pavel Dovgalyuk , Andrew Jeffery , qemu-s390x , Richard Henderson , qemu-arm , Bastian Koppelmann , Beraldo Leal , Max Filippov , =?UTF-8?Q?Marc-Andr=c3=a9_Lureau?= , Mark Cave-Ayland , Jiaxun Yang , Radoslaw Biernacki , Aurelien Jarno , David Hildenbrand , Markus Armbruster , Song Gao , Joel Stanley , =?UTF-8?Q?Daniel_P=2e_Berrang=c3=a9?= , =?UTF-8?Q?Philippe_Mathieu-Daud=c3=a9?= References: <20230503091244.1450613-1-alex.bennee@linaro.org> <20230503091244.1450613-6-alex.bennee@linaro.org> <531a2eab-f0e6-46a5-c021-c82746c1ae38@redhat.com> <87y1m5s9yl.fsf@linaro.org> <5fb214d8-4a54-f896-f23f-fe9e646e4b2d@redhat.com> <878re4cl1u.fsf@suse.de> Content-Language: en-US From: Paolo Bonzini In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Received-SPF: pass client-ip=170.10.129.124; envelope-from=pbonzini@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -38 X-Spam_score: -3.9 X-Spam_bar: --- X-Spam_report: (-3.9 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, NICE_REPLY_A=-1.802, 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 5/9/23 11:27, Peter Maydell wrote: > On Mon, 8 May 2023 at 23:24, Paolo Bonzini wrote: >> --without-default-devices is not about choosing to not build >> some devices; it is about making non-selected devices opt-in >> rather than opt-out. > > Hmm, so it's basically "the person doing the configuration needs > to know what they're doing, the Kconfig system will give them > no hints about what devices might or might not be needed to > make machine type M functional" ? It depends on what you mean by functional. I would say you do get what is needed to have a functional machine, but not what is needed to have a useful machine. But typically the latter is the easier of the two, because you should have an idea of what -devices are useful *to you*. Paolo