On 3/13/19 4:35 AM, David Gibson wrote:
> On Tue, Mar 12, 2019 at 06:36:05PM +0100, Markus Armbruster wrote:
>> Dear board code maintainers,
>>
>> This is a (rather late) follow-up to the last QEMU summit. Minutes[*]:
>>
>> * Deprecating unmaintained features (devices, targets, backends) in QEMU
>>
>> QEMU has a mechanism to deprecate features but there remains a lot of
>> old unmaintained code. Refactoring is hindered by untested legacy
>> code, so there is a desire to deprecate unmaintained features more
>> often.
>>
>> [...]
>>
>> We should require at least a minimal test for each board; if nobody
>> cares enough to come up with one, that board should be deprecated.
>>
>> [...]
>>
>> Also see the qemu-devel discussion about deprecating code:
>> https://lists.nongnu.org/archive/html/qemu-devel/2018-10/msg05828.html.
>>
>> That's a link to "Minutes of KVM Forum BoF on deprecating stuff".
>> Quote:
>>
>> * One obvious class of candidates for removal is machines we don't know
>> how to boot, or can't boot, say because we lack required firmware
>> and/or OS.
>>
>> Of course, "can boot" should be an automated test. As a first step
>> towards that, we should at least document how to boot each machine.
>> We're going to ask machine maintainers to do that.
>>
>> Let's get going on this.
>>
>> I gathered the machine types, mapped them to source files, which I fed
>> to get_maintainer.pl. Results are appended. If you're cc'ed,
>> MAINTAINERS fingers you for at least one machine type's source file.
>> Please tell us for all of them how to to a "meaningful" boot test.
>>
>> For now, what's "meaningful" is entirely up to you. Booting Linux
>> certainly is.
>>
>> Make sure to include a complete QEMU command line. If your QEMU command
>> line requires resources beyond the QEMU source tree and what we build
>> from it, please detail them, and provide download URLs as far as
>> possible.
>>
>> Goals for this exercise:
>>
>> * Gather information we need to cover more machines in our automated
>> testing.
>>
>> Related work:
>> [PATCH v4 00/19] Acceptance Tests: target architecture support
>> Message-Id: <20190312121150.8638-1-cr...@redhat.com>
>> https://lists.gnu.org/archive/html/qemu-devel/2019-03/msg03881.html
>>
>> * Maybe identify a few machines we don't know how to boot anymore.
>>
>> Thanks in advance for your help!
>>
>>
>>
>> Machines with at least one maintainer:
>
> [snip]
>> = hw/ppc/pnv.c =
>> David Gibson <da...@gibson.dropbear.id.au> (maintainer:PowerPC)
>> qemu-...@nongnu.org (open list:PowerPC)
>
> Cédric already posted information for these, thanks.
>
> Cédric, could you also send me a patch to MAINTAINERS to add yourself
> as a maintainer of the powernv machine type (I'm fine remaining
> co-maintainer).
Sure.
>> = hw/ppc/prep.c =
>> "Hervé Poussineau" <hpous...@reactos.org> (maintainer:PReP)
>> David Gibson <da...@gibson.dropbear.id.au> (maintainer:PowerPC)
>> qemu-...@nongnu.org (open list:PReP)
>
> I'm hoping Hervé can answer this one.
>
>> = hw/ppc/sam460ex.c =
>> BALATON Zoltan <bala...@eik.bme.hu> (maintainer:sam460ex)
>> David Gibson <da...@gibson.dropbear.id.au> (maintainer:PowerPC)
>> qemu-...@nongnu.org (open list:sam460ex)
>
> I believe Zoltan should be able to answer this one.
>
>>
>> = hw/ppc/virtex_ml507.c =
>> "Edgar E. Iglesias" <edgar.igles...@gmail.com> (odd fixer:virtex_ml507)
>> David Gibson <da...@gibson.dropbear.id.au> (maintainer:PowerPC)
>> qemu-...@nongnu.org (open list:virtex_ml507)
>
> I hope Edgar can answer this one, I have no idea.
>
>> = hw/ppc/spapr.c =
>> David Gibson <da...@gibson.dropbear.id.au> (supporter:sPAPR)
>> qemu-...@nongnu.org (open list:sPAPR)
>
> Lots of ways to boot this. Modern RHEL, CentOS, Fedora, Debian or
> Ubuntu for ppc64 should work. kvm-unit-tests also supports this
> machine. Any other details you want?
>
> This is actively maintained and tested downstream by Red Hat, possibly
> amongst others.
>
> [snip]
>> = hw/ppc/e500plat.c =
>> David Gibson <da...@gibson.dropbear.id.au> (odd fixer:e500)
>> qemu-...@nongnu.org (open list:e500)
>
> I receive and merge occasional fixes for this, but I don't really know
> how to use it. Alex Graf or Greg Kurz might know a bit more.
>
>> = hw/ppc/mac_newworld.c =
>> Mark Cave-Ayland <mark.cave-ayl...@ilande.co.uk> (odd fixer:New World
>> (mac99))
>> David Gibson <da...@gibson.dropbear.id.au> (reviewer:New World (mac99))
>> qemu-...@nongnu.org (open list:New World (mac99))
>>
>> = hw/ppc/mac_oldworld.c =
>> Mark Cave-Ayland <mark.cave-ayl...@ilande.co.uk> (odd fixer:Old World
>> (g3beige))
>> David Gibson <da...@gibson.dropbear.id.au> (reviewer:Old World (g3beige))
>> qemu-...@nongnu.org (open list:Old World (g3beige))
>
> Mark, can you answer these ones.
>
>>
>> = hw/ppc/mpc8544ds.c =
>> David Gibson <da...@gibson.dropbear.id.au> (odd fixer:mpc8544ds)
>> qemu-...@nongnu.org (open list:mpc8544ds)
>>
>> = hw/ppc/ppc405_boards.c =
>> David Gibson <da...@gibson.dropbear.id.au> (odd fixer:ppc4xx)
>> qemu-...@nongnu.org (open list:ppc4xx)
>>
>> = hw/ppc/ppc440_bamboo.c =
>> David Gibson <da...@gibson.dropbear.id.au> (odd fixer:ppc4xx)
>> qemu-...@nongnu.org (open list:ppc4xx)
>
> I don't know much about these, though I receive and apply patches
> occasionally, so presumably they work for someone. Alex Graf might
> know more.
>
We should probably also update :
https://wiki.qemu.org/Documentation/Platforms/PowerPC
I don't think we have a page for PPC64. Do we ?
Thanks,
C.
