On 9/16/19 11:55 AM, Thomas Gleixner wrote:
> On Mon, 9 Sep 2019, Ralf Ramsauer wrote:
> 
>> Hi,
>>
>> probing of platform UARTs is a problem for x86 jailhouse non-root
>> cells: Linux doesn't know which UARTs belong to the cell and will probe
>> for all platform UARTs. This crashes the guest if access isn't
>> permitted. Current workarounds (tuning via 8250.nr_uarts) are hacky and
>> limited.
>>
>> But we do have some flags inside setup_data that indicate availability
>> of UARTs, so simply use it.
>>
>>    Ralf
>>
>> since v3:
>>    - Link: 
>> https://www.mail-archive.com/jailhouse-dev@googlegroups.com/msg07365.html
> 
> Could you please provide links which resolve via Message-ID of the cover 
> letter?
> 
>        Link: https://lore.kernel.org/r/$MESSAGE_ID
> 
> These are way better as they allow retrieval via message ID even if the
> archive URL vanished at some point.

I fully agree, that's much more robust. I chose mail-archive as
jailhouse-dev isn't archived by lore.

However, if lore would ever archive this list, here are the links:

Link v4:
https://lore.kernel.org/r/<20190909151030.152012-1-ralf.ramsa...@oth-regensburg.de>
Link v3:
https://lore.kernel.org/r/<20190819183408.988013-1-ralf.ramsa...@oth-regensburg.de>
Link v2:
https://lore.kernel.org/r/<20190812110650.631305-1-ralf.ramsa...@oth-regensburg.de>
Link v1:
https://lore.kernel.org/r/<20190802123333.4008-1-ralf.ramsa...@oth-regensburg.de>

  Ralf

> 
> Thanks,
> 
>       tglx
> 

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