Re: [Qemu-ppc] VxWorks 5.5.1 on qemu powerpc

[Fabien Chouteau]

On 04/01/2014 03:16 PM, Alexander Graf wrote:
> On 04/01/2014 03:12 PM, Fabien Chouteau wrote:
>> On 04/01/2014 02:14 PM, Alexander Graf wrote:
>>> On 04/01/2014 12:27 PM, Fabien Chouteau wrote:
>>>> On 04/01/2014 12:07 PM, Alexander Graf wrote:
>>>>> On 04/01/2014 11:54 AM, Fabien Chouteau wrote:
>>>>>> Hi Maxime, Alex,
>>>>>>
>>>>>> On 04/01/2014 11:16 AM, Alexander Graf wrote:
>>>>>>> On 04/01/2014 11:04 AM, FOURNIER Maxime wrote:
>>>>>>>> Did someone managed to make this OS boot on qemu-powerpc ?
>>>>>>> Yes, Fabien Chouteau had VxWorks running on e500 IIRC.
>>>>>>>
>>>>>> We actually have many products for vxWorks now, vxWorks6 and
>>>>>> vxworks6-cert on ppc604 and e500v2, vx653 on e500v2. No vxworks5 for the
>>>>>> moment...
>>>>>>
>>>>>>>> Did we miss something or did we make wrong assumptions ?
>>>>>>>>
>>>>>>    From experience I can tell you that vxWorks will not work out of the 
>>>>>> box
>>>>>> on QEMU. First because QEMU doesn't emulate the boards supported by
>>>>>> vxWorks, and also because QEMU is focused on Linux.
>>>>>>
>>>>>> There's different way to deal with this, you can either create a custom
>>>>>> BSP in vxWorks that support one of QEMU's board, or you can support a
>>>>>> new board in QEMU (that's what we do).
>>>>> Hrm, any plans to move these upstream? :)
>>>>>
>>>> Yes of course, we want them upstream eventually. During the last few
>>>> years you've seen some of our patches (booke timers and eTSEC for
>>>> examples). For boards it think it's not that easy, what would you say
>>>> about a complete board that you cannot test because only vxWorks runs on
>>>> it?
>>> As long as I have a (vxworks) image I can verify with that it still works 
>>> that's a perfectly desirable thing to have.
>>>
>> That's precisely the problem, I can't give you a vxWorks image...
> 
> So why don't we start off with a platform that doesn't need vxworks
> then? You seem to have SBC834x board support in your tree. That one
> does seem to be available in Linux:
> 
> http://lxr.free-electrons.com/source/arch/powerpc/platforms/83xx/sbc834x.c
> 

This solution will cost a lot of resources, vxWorks and Linux are very
different. We prefer to focus on submitting bug fixes or patches that
are easier for the community to test.