Hi Dandan,

On Sun, Mar 28, 2021 at 05:03 AM, Dandan Bi wrote:

> 
> + Flag = FilterBeforeMmIoRead (FilterWidth8, Address, &Value);
> + if (Flag {

There is a missing closing bracket here and at other places in MdePkg/Library/BaseIoLibIntrinsic/IoLibNoIo.c. Can you check, please?

> 
> + Value = *(volatile UINT8*)Address;
> + }

Regards,

Sami Mujawar