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[80.187.99.118]) by smtp.gmail.com with ESMTPSA id y8sm2669218wrr.21.2021.10.01.07.18.50 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 01 Oct 2021 07:18:52 -0700 (PDT) To: Christophe Leroy , Peter Maydell References: <20210927044808.73391-1-david@gibson.dropbear.id.au> <20210927044808.73391-5-david@gibson.dropbear.id.au> <18fa56ee-956e-ee2f-9270-82aa96dfde09@redhat.com> <40cdb137-60c9-43fd-7b48-4858cbd9307c@redhat.com> <6c2ff4e6-4bf4-d310-5e26-c8d2741177bc@redhat.com> <42e5a8c2-b8fa-b9e2-71f1-c8e5cd7f5cef@csgroup.eu> From: Thomas Huth Subject: Re: Deprecate the ppc405 boards in QEMU? (was: [PATCH v3 4/7] MAINTAINERS: Orphan obscure ppc platforms) Message-ID: <1397f18f-f187-6f48-ed6c-13c0b77abed9@redhat.com> Date: Fri, 1 Oct 2021 16:18:49 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.13.0 MIME-Version: 1.0 In-Reply-To: <42e5a8c2-b8fa-b9e2-71f1-c8e5cd7f5cef@csgroup.eu> Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=thuth@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=170.10.133.124; envelope-from=thuth@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -19 X-Spam_score: -2.0 X-Spam_bar: -- X-Spam_report: (-2.0 / 5.0 requ) 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=-1.127, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H2=-0.001, 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: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Christophe Leroy , dbarboza@redhat.com, Alexey Kardashevskiy , Mark Cave-Ayland , QEMU Developers , Wainer dos Santos Moschetta , Greg Kurz , Alexander Graf , qemu-ppc , =?UTF-8?Q?C=c3=a9dric_Le_Goater?= , Cleber Rosa , =?UTF-8?Q?Herv=c3=a9_Poussineau?= , =?UTF-8?Q?Philippe_Mathieu-Daud=c3=a9?= , "Edgar E. Iglesias" , David Gibson Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On 01/10/2021 15.04, Christophe Leroy wrote: > > > Le 01/10/2021 à 14:04, Thomas Huth a écrit : >> On 01/10/2021 13.12, Peter Maydell wrote: >>> On Fri, 1 Oct 2021 at 10:43, Thomas Huth wrote: >>>> Nevertheless, as long as nobody has a hint where to find that >>>> ppc405_rom.bin, I think both boards are pretty useless in QEMU (as far as I >>>> can see, they do not work without the bios at all, so it's also not >>>> possible >>>> to use a Linux image with the "-kernel" CLI option directly). >>> >>> It is at least in theory possible to run bare-metal code on >>> either board, by passing either a pflash or a bios argument. >> >> True. I did some more research, and seems like there was once support for >> those boards in u-boot, but it got removed there a couple of years ago >> already: >> >> https://gitlab.com/qemu-project/u-boot/-/commit/98f705c9cefdf >> >> https://gitlab.com/qemu-project/u-boot/-/commit/b147ff2f37d5b >> >> https://gitlab.com/qemu-project/u-boot/-/commit/7514037bcdc37 >> >>> But I agree that there seem to be no signs of anybody actually >>> successfully using these boards for anything, so we should >>> deprecate-and-delete them. >> >> Yes, let's mark them as deprecated now ... if someone still uses them and >> speaks up, we can still revert the deprecation again. > > I really would like to be able to use them to validate Linux Kernel changes, > hence looking for that missing BIOS. > > If we remove ppc405 from QEMU, we won't be able to do any regression tests > of Linux Kernel on those processors. If you/someone managed to compile an old version of u-boot for one of these two boards, so that we would finally have something for regression testing, we can of course also keep the boards in QEMU... Thomas