Re: [Xen-devel] Unable to boot Xen 4.7-rc4 on HiKey

[Tamas K Lengyel <tamas.k.lengyel@xxxxxxxxx>]

On Thu, Jun 2, 2016 at 11:02 AM, Julien Grall <julien.grall@xxxxxxx> wrote:
>
>
> On 02/06/16 17:53, Tamas K Lengyel wrote:
>>
>> On Thu, Jun 2, 2016 at 4:34 PM, Chenxiao Zhao <chenxiao.zhao@xxxxxxxxx>
>> wrote:
>>>
>>>
>>>
>>> On 6/1/2016 6:09 PM, Tamas K Lengyel wrote:
>>>>
>>>>
>>>> On Wed, Jun 1, 2016 at 3:49 PM, Julien Grall <julien.grall@xxxxxxx>
>>>> wrote:
>>>>>
>>>>>
>>>>> On 01/06/2016 18:10, Tamas K Lengyel wrote:
>>>>>>
>>>>>>
>>>>>>
>>>>>> Hi all,
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> Hi Tamas,
>>>>>
>>>>>> following the steps from http://wiki.xen.org/wiki/HiKey I'm unable to
>>>>>> get the board to boot Xen. I'm using the Debian reference image from
>>>>>> linaro as base
>>>>>> (https://builds.96boards.org/releases/hikey/linaro/debian/latest/)
>>>>>> and that boots fine both from the SD card directly and through
>>>>>> startup.nsh. However, when I try to boot Xen I see only the following:
>>>>>>
>>>>>> Xen 4.7.0-rc (c/s Mon May 23 12:07:20 2016 +0100 git:8478c94-dirty)
>>>>>> EFI
>>>>>> loader
>>>>>> Using configuration file 'xen.cfg'
>>>>>> Image: 0x000000007a121000-0x000000007acb8a70
>>>>>>
>>>>>> After that no output and dom0 never comes online on the network
>>>>>> either. I tried compiling Xen on the device itself in case it was a
>>>>>> problem with my cross-compile setup but no difference. Also with and
>>>>>> without debug=y. Any tips on what might be going wrong here?
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> I gave a quick look at the upstream device-tree of the hikey, the path
>>>>> /smb/uart@f7113000.
>>>>>
>>>>> If you use the upstream device-tree, it should be able to find the
>>>>> correct
>>>>> UART via "stdout-path" and therefore dtuart=... should not be
>>>>> necessary.
>>>>>
>>>>> Let me know if it works for you, and I will update the wiki page.
>>>>
>>>>
>>>>
>>>> No, I removed the dtuart=... part from xen.cfg but there is no
>>>> difference in the output and dom0 never comes up on the network
>>>> either.
>>>
>>>
>>>
>>> Hi Tamas,
>>>
>>> My xen.cfg for Hikey is like this:
>>>
>>> options=dom0_mem=1024M dom0_max_vcpus=8 conswitch=x console=dtuart
>>> dtuart=/smb/uart@f7113000
>>> kernel=Image console=hvc root=/dev/mmcblk0p9 rootwait rw 3
>>> dtb=hi6220-hikey.dtb
>>>
>>> hope this could help you.
>>
>>
>> Ah, thank you! Yes, the fact that the dtb goes in a third line in the
>> cfg was missing! Should be put on wiki! I finally see Xen booting but
>> dom0 still doesn't start.
>
>
> Well, the firmware should provide a valid device-tree, and therefore
> "dtb=..." should not be necessary.
>
> The way forward is too check why the UEFI firmware does not provide a Device
> Tree (or maybe the DT path to the UART is different).
>

The UEFI firmware is the stock one that came with it.

Tamas

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