From: BALATON Zoltan <balaton@eik.bme.hu>
To: "Cédric Le Goater" <clg@kaod.org>
Cc: "Christophe Leroy" <christophe.leroy@c-s.fr>,
"Peter Maydell" <peter.maydell@linaro.org>,
"Thomas Huth" <thuth@redhat.com>,
dbarboza@redhat.com, "Alexey Kardashevskiy" <aik@ozlabs.ru>,
"Greg Kurz" <groug@kaod.org>,
"Christophe Leroy" <christophe.leroy@csgroup.eu>,
"QEMU Developers" <qemu-devel@nongnu.org>,
"Alexander Graf" <agraf@csgraf.de>,
qemu-ppc <qemu-ppc@nongnu.org>,
"Wainer dos Santos Moschetta" <wainersm@redhat.com>,
"Cleber Rosa" <crosa@redhat.com>,
"Hervé Poussineau" <hpoussin@reactos.org>,
"Philippe Mathieu-Daudé" <philmd@redhat.com>,
"David Gibson" <david@gibson.dropbear.id.au>
Subject: Re: Deprecate the ppc405 boards in QEMU? (was: [PATCH v3 4/7] MAINTAINERS: Orphan obscure ppc platforms)
Date: Tue, 5 Oct 2021 14:20:52 +0200 (CEST) [thread overview]
Message-ID: <491d6265-3785-b11-b7f0-621a3d2823@eik.bme.hu> (raw)
In-Reply-To: <5e4f78ce-1508-5689-ec29-79edad0c824e@kaod.org>
[-- Attachment #1: Type: text/plain, Size: 3045 bytes --]
On Tue, 5 Oct 2021, Cédric Le Goater wrote:
> On 10/5/21 08:18, Alexey Kardashevskiy wrote:
>> On 05/10/2021 15:44, Christophe Leroy wrote:
>>> Le 05/10/2021 à 02:48, David Gibson a écrit :
>>>> On Fri, Oct 01, 2021 at 04:18:49PM +0200, Thomas Huth wrote:
>>>>> 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 <thuth@redhat.com> 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...
>>>>
>>>> I can see that it would be usefor for some cases, but unless someone
>>>> volunteers to track down the necessary firmware and look after it, I
>>>> think we do need to deprecate it - I certainly don't have the capacity
>>>> to look into this.
>>>>
>>>
>>> I will look at it, please allow me a few weeks though.
>>
>> Well, building it was not hard but now I'd like to know what board QEMU
>> actually emulates, there are way too many codenames and PVRs.
>
> yes. We should try to reduce the list below. Deprecating embedded machines
> is one way.
Why should we reduce that list? It's good to have different cpu options
when one wants to test code for different PPC versions (maybe also in user
mode) or just to have a quick list of these at one place.
Regards,
BALATON Zoltan
next prev parent reply other threads:[~2021-10-05 12:24 UTC|newest]
Thread overview: 93+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-27 4:48 [PATCH v3 0/7] Reduce load on ppc target maintainers David Gibson
2021-09-27 4:48 ` [PATCH v3 1/7] qemu: Split machine_ppc.py acceptance tests David Gibson
2021-09-27 4:50 ` Philippe Mathieu-Daudé
2021-09-27 16:44 ` Philippe Mathieu-Daudé
2021-09-27 16:53 ` Cédric Le Goater
2021-09-27 17:18 ` Philippe Mathieu-Daudé
2021-09-27 4:48 ` [PATCH v3 2/7] MAINTAINERS: Remove machine specific files from ppc TCG CPUs entry David Gibson
2021-09-27 4:48 ` [PATCH v3 3/7] MAINTAINERS: Remove David & Greg as reviewers for a number of boards David Gibson
2021-09-27 4:48 ` [PATCH v3 4/7] MAINTAINERS: Orphan obscure ppc platforms David Gibson
2021-10-01 8:35 ` Deprecate the ppc405 boards in QEMU? (was: [PATCH v3 4/7] MAINTAINERS: Orphan obscure ppc platforms) Thomas Huth
2021-10-01 9:14 ` Christophe Leroy
2021-10-01 9:43 ` Thomas Huth
2021-10-01 11:12 ` Peter Maydell
2021-10-01 12:04 ` Thomas Huth
2021-10-01 13:04 ` Christophe Leroy
2021-10-01 13:14 ` Cédric Le Goater
2021-10-01 13:24 ` Peter Maydell
2021-10-01 14:18 ` Thomas Huth
2021-10-05 0:48 ` David Gibson
2021-10-05 4:44 ` Christophe Leroy
2021-10-05 6:18 ` Alexey Kardashevskiy
2021-10-05 6:42 ` Thomas Huth
2021-10-05 8:05 ` Alexey Kardashevskiy
2021-10-05 8:07 ` Thomas Huth
2021-10-05 8:51 ` Deprecate the ppc405 boards in QEMU? Thomas Huth
2021-10-05 12:17 ` BALATON Zoltan
2021-10-05 12:35 ` Thomas Huth
2021-10-05 21:53 ` BALATON Zoltan
2021-10-06 6:39 ` Thomas Huth
2021-10-06 7:25 ` Thomas Huth
2021-10-11 8:10 ` Thomas Huth
2021-10-11 9:20 ` David Gibson
2021-10-11 13:24 ` Thomas Huth
2021-10-19 9:31 ` Christophe Leroy
2021-10-19 9:39 ` Thomas Huth
2021-10-19 9:48 ` Christophe Leroy
2021-10-19 10:07 ` BALATON Zoltan
2021-10-19 11:11 ` Thomas Huth
2021-10-19 11:51 ` Christophe Leroy
2021-10-19 12:38 ` BALATON Zoltan
2021-10-19 13:44 ` Christophe Leroy
2021-10-19 14:24 ` Christophe Leroy
2021-10-19 14:56 ` BALATON Zoltan
2021-10-19 16:12 ` Christophe Leroy
2021-10-19 20:55 ` Cédric Le Goater
2021-10-19 21:30 ` Cédric Le Goater
2021-10-20 9:02 ` Christophe Leroy
2021-10-20 10:10 ` Cédric Le Goater
2021-10-20 13:27 ` LEROY Christophe
2021-10-20 14:31 ` BALATON Zoltan
2021-10-20 14:34 ` Thomas Huth
2021-10-20 14:41 ` Cédric Le Goater
2021-10-20 15:03 ` LEROY Christophe
2021-10-20 14:39 ` Cédric Le Goater
2021-10-20 15:28 ` LEROY Christophe
2021-10-20 10:21 ` Philippe Mathieu-Daudé
2021-10-20 11:40 ` BALATON Zoltan
2021-10-20 10:12 ` CLI: Using -bios AND -kernel Philippe Mathieu-Daudé
2021-10-20 10:54 ` Thomas Huth
2021-10-20 11:35 ` BALATON Zoltan
2021-10-19 9:41 ` Deprecate the ppc405 boards in QEMU? Greg Kurz
2021-10-05 8:14 ` Deprecate the ppc405 boards in QEMU? (was: [PATCH v3 4/7] MAINTAINERS: Orphan obscure ppc platforms) Cédric Le Goater
2021-10-05 12:20 ` BALATON Zoltan [this message]
2021-10-05 12:29 ` Thomas Huth
2021-10-20 10:26 ` Philippe Mathieu-Daudé
2021-10-20 11:42 ` BALATON Zoltan
2021-10-20 12:43 ` Cédric Le Goater
2021-10-20 13:16 ` LEROY Christophe
2021-10-20 15:04 ` Simon Marchi
2021-10-21 6:48 ` Christophe Leroy
2021-10-21 7:25 ` Deprecate the ppc405 boards in QEMU? Thomas Huth
2021-10-21 8:01 ` Christophe Leroy
2021-10-28 12:24 ` Deprecate the ppc405 boards in QEMU? (was: [PATCH v3 4/7] MAINTAINERS: Orphan obscure ppc platforms) Luis Machado
2021-10-28 17:27 ` Christophe Leroy
2021-10-20 13:35 ` Deprecate the ppc405 boards in QEMU? Thomas Huth
2021-10-20 14:55 ` BALATON Zoltan
2021-10-20 15:04 ` Thomas Huth
2021-10-20 14:16 ` Deprecate the ppc405 boards in QEMU? (was: [PATCH v3 4/7] MAINTAINERS: Orphan obscure ppc platforms) BALATON Zoltan
2021-10-05 8:49 ` Daniel P. Berrangé
2021-10-05 16:15 ` Philippe Mathieu-Daudé
2021-10-05 16:20 ` Daniel P. Berrangé
2021-10-27 4:06 ` Philippe Mathieu-Daudé
2021-10-27 8:40 ` Cédric Le Goater
2021-10-27 10:42 ` Christophe Leroy
2021-10-27 10:48 ` Philippe Mathieu-Daudé
2021-10-27 17:03 ` Cédric Le Goater
2021-09-27 4:48 ` [PATCH v3 5/7] MAINTAINERS: Remove David & Greg as reviewers/co-maintainers of powernv David Gibson
2021-09-27 4:48 ` [PATCH v3 6/7] MAINTAINERS: Add information for OpenPIC David Gibson
2021-09-29 7:08 ` Mark Cave-Ayland
2021-09-27 4:48 ` [PATCH v3 7/7] MAINTAINERS: Demote sPAPR from "Supported" to "Maintained" David Gibson
2021-09-30 1:15 ` [PATCH v3 0/7] Reduce load on ppc target maintainers David Gibson
2021-10-06 9:52 ` Alexey Kardashevskiy
2021-10-06 11:03 ` Greg Kurz
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