On Thu, 10 Jun 2021, David Gibson wrote:
> On Thu, Jun 10, 2021 at 05:14:45PM +1000, Alexey Kardashevskiy wrote:
>>
>>
>> On 6/9/21 20:28, BALATON Zoltan wrote:
>>> On Wed, 9 Jun 2021, Alexey Kardashevskiy wrote:
>>>> On 6/7/21 01:46, BALATON Zoltan wrote:
>>>>> Based-on: <20210520090557.435689-1-aik@ozlabs.ru>
>>>>> ^ That is v20 of Alexey's VOF patch
>>>>>
>>>>> Hello,
>>>>>
>>>>> Posting these for early review now. I plan to rebase on the next VOF
>>>>> patch that hopefully fixes those points that I had to circumvent in
>>>>> patch 1 for now. I've reported these before but now all of those that
>>>>> are needed for pegasos2 are in one place. Other points I've reported
>>>>> could be clean ups but not sttictly needed.
>>>>>
>>>>> With this series on top of VOF v20 I can now boot Linux and MorphOS on
>>>>> pegasos2 without needing a firmware blob so I hope this is enough to
>>>>> get this board in 6.1 and also have it enabled so users can start
>>>>> using it. That means that VOF will also be merged by then. This now
>>>>> gives VOF another use case that may help it getting finished.
>>>>>
>>>>> I've also updated my development tree with this series here:
>>>>>
>>>>>
https://osdn.net/projects/qmiga/scm/git/qemu/tree/pegasos2/
>>>>>
>>>>> Please review so I can do any needed changes together with the rebase
>>>>> on next VOF patch so we don't miss 6.1 this time.
>>>>
>>>>
>>>> It would help if you provided the disk or/and kernel or/and
>>>> initramdisk images and the example command line to give this a try.
>>>> And said a few words who is this Pegasos2 guy :) The series looks ok
>>>> to me otherwise. Thanks,
>>>
>>> These were in the original series adding this board:
>>>
>>>
https://patchew.org/QEMU/cover.1616680239.git.balaton@eik.bme.hu/
>>
>>
>> Ah ok. Thanks!
>>
>>
>>> For testing I've used the kernel from debian 8.11.0 powerpc iso which is
>>> known to work on real hardware and MorphOS demo iso available from
>>>
www.morphos-team.net. For debian look into install/pegasos to find the
>>> right vmlinuz-chrp.initrd kernel, for MorphOS use the boot.img from root
>>> of the iso as -kernel.
>>>
>>> What's still missing is some rtas functions like get-time-of-day. Are
>>> these any kind of standard and is there a doc about their parameters and
>>> returns or I'll heave to find out from kernel sources? I plan to add
>>> these later but not needed to get it boot.
>>
>> pseries guests use what the LoPAPR spec (derived from sPAPR - "server PAPR")
>> describes:
>>
>>
https://openpowerfoundation.org/?resource_lib=linux-on-power-architecture-platform-reference
>
> Of course pegasos won't remotely be PAPR, but you could look at how
> the RTAS functions are defined there.
>
> I'm not really sure of the origins of RTAS. It's not in plain
> IEEE1275 (the original OF spec), but the fact pegasos uses it suggests
> it's not purely a PAPR thing, either.
Pegasos is supposed to be a CHRP platform so maybe there's something on it
in that doc, I haven't checked yet but now you mentioned these I should
probably look there.
Thenks,
BALATON Zoltan