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[88.187.86.199]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-390e4796051sm15377461f8f.12.2025.03.03.09.32.46 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 03 Mar 2025 09:32:47 -0800 (PST) Message-ID: <2ccd4a87-68f3-4eb1-bc2a-dbc424bc8d34@linaro.org> Date: Mon, 3 Mar 2025 18:32:46 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 1/2] vfio: Make vfio-pci available on 64-bit host platforms only To: Peter Maydell , =?UTF-8?Q?C=C3=A9dric_Le_Goater?= , Thomas Huth Cc: BALATON Zoltan , Paolo Bonzini , qemu-devel@nongnu.org, Alex Williamson , Harsh Prateek Bora , Tony Krowiak , Eric Farman , Eric Auger , =?UTF-8?Q?Daniel_P=2E_Berrang=C3=A9?= , =?UTF-8?Q?Alex_Benn=C3=A9e?= References: <20250226084721.232703-1-clg@redhat.com> <20250226084721.232703-2-clg@redhat.com> <270cc189-e3b2-4bf4-b32b-8655be51bcb4@redhat.com> <8e3a5810-accf-1f77-8692-4e077c3ce327@eik.bme.hu> Content-Language: en-US From: =?UTF-8?Q?Philippe_Mathieu-Daud=C3=A9?= In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2a00:1450:4864:20::333; envelope-from=philmd@linaro.org; helo=mail-wm1-x333.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, 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 3/3/25 17:57, Peter Maydell wrote: > On Mon, 3 Mar 2025 at 15:49, Cédric Le Goater wrote: >> Why are we keeping qemu-system-ppc and qemu-system-i386, and arm, >> since qemu-system-ppc64 and qemu-system-x86_64 should be able to >> run the same machines ? > > They're not identical -- for example "-cpu max" on > qemu-system-arm is a 32-bit CPU but on qemu-system-aarch64 > it is a 64-bit CPU. > > There's definitely a lot of overlap but we can't just drop > the -arm executable until/unless we figure out what to do > about the corner cases where they are different. Plus there's > a lot of users out there with existing command lines and > configs that assume the existence of a qemu-system-arm > executable. Thomas and myself have been trying to sort that out. Now with the single-binary effort, it gained new interest. This hasn't be a trivial task so far, due to as you mentioned the legacy CLI uses and migration. This is however in my priority list and Alex asked to have a single qemu-system-aarch64 binary for ARM/Aarch64 for the 11.0 release.