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[95.127.39.43]) by smtp.gmail.com with ESMTPSA id k8-20020a5d66c8000000b002c573a6216fsm448290wrw.37.2023.03.02.14.07.55 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 02 Mar 2023 14:07:57 -0800 (PST) Message-ID: <4bed38c3-ab4f-cd32-05a4-afa090ad8b9a@linaro.org> Date: Thu, 2 Mar 2023 23:07:53 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:102.0) Gecko/20100101 Thunderbird/102.8.0 Subject: Re: [PATCH v2 0/6] Deprecate support for 32-bit x86 and arm hosts Content-Language: en-US To: Thomas Huth , qemu-devel@nongnu.org, Peter Maydell , Daniel Berrange , Paolo Bonzini Cc: Markus Armbruster , =?UTF-8?Q?Alex_Benn=c3=a9e?= , qemu-arm@nongnu.org, Maxim Levitsky , libvir-list@redhat.com, Richard Henderson , xen-devel@lists.xenproject.org, Reinoud Zandijk , Michael Tokarev , John Paul Adrian Glaubitz , Helge Deller References: <20230302163106.465559-1-thuth@redhat.com> From: =?UTF-8?Q?Philippe_Mathieu-Daud=c3=a9?= In-Reply-To: <20230302163106.465559-1-thuth@redhat.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Received-SPF: pass client-ip=2a00:1450:4864:20::432; envelope-from=philmd@linaro.org; helo=mail-wr1-x432.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=-0.092, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 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: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org On 2/3/23 17:31, Thomas Huth wrote: > We're struggling quite badly with our CI minutes on the shared > gitlab runners, so we urgently need to think of ways to cut down > our supported build and target environments. qemu-system-i386 and > qemu-system-arm are not really required anymore, since nobody uses > KVM on the corresponding systems for production anymore, and the > -x86_64 and -arch64 variants are a proper superset of those binaries. > So it's time to deprecate them and the corresponding 32-bit host > environments now. > > This is a follow-up patch series from the previous discussion here: > > https://lore.kernel.org/qemu-devel/20230130114428.1297295-1-thuth@redhat.com/ > > where people still mentioned that there is still interest in certain > support for 32-bit host hardware. But as far as I could see, there is > no real need for 32-bit x86 host support and for system emulation on > 32-bit arm hosts anymore, so it should be fine if we drop these host > environments soon (these are also the two architectures that contribute > the most to the long test times in our CI, so we would benefit a lot by > dropping those). It is not clear from your cover that the deprecation only concern system emulation on these hosts, not user emulation. I wonder about tools. Apparently they depend on sysemu now. I was building a 'configure --enable-tools --disable-system' but now it is empty.