On 12 February 2018 at 11:47, Haojian Zhuang <haojian.zhu...@linaro.org> wrote:
>>From: Leif Lindholm <leif.lindh...@linaro.org>
>>Sent: Monday, February 12, 2018 11:45 AM
>>To: Haojian Zhuang
>>Cc: edk2-devel@lists.01.org; linaro-u...@lists.linaro.org; 
>>ard.sheu...@linaro.org; heyi....@linaro.org
>>Subject: Re: [PATCH v2 3/4] Platform/Hisilicon: move out dxe runtime lib from 
>>common file
>>On Sat, Feb 10, 2018 at 01:31:06AM +0800, Haojian Zhuang wrote:
>>> With the SerialPortLib and DebugLib, Dxe runtime driver can't
>>> be executed well on HiKey. Serial logs are missing.
>>"Can't be executed well"? Does this mean it crashes?
> No crash. Serial output are missing since SerialPortLib is different.

Does this driver take care to only create serial output at boot time?
Does it, e.g., call EfiAtRuntime() or use a notification callback at
ExitBootServices to make absolutely sure the serial port is no longer
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