On 02/02/15 14:29, Gao, Liming wrote:
> Laszlo:
>   Thanks for your comments. 
> 1) BIT28 should be BIT31. 
> 2) New PCD PcdFixedDebugPrintErrorLevel value should be mask value of all 
> BITs so that it doesn't bring impact for current platform. If platform wants 
> to use this feature, platform can configure its value to new one in their DSC 
> file. 
> 
>   I make new patch for this update. Please help review it. 
> ---
>  MdePkg/MdePkg.dec |   6 +++---
>  MdePkg/MdePkg.uni | Bin 66564 -> 66564 bytes
>  2 files changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/MdePkg/MdePkg.dec b/MdePkg/MdePkg.dec
> index 3f3485d..1f9b54d 100644
> --- a/MdePkg/MdePkg.dec
> +++ b/MdePkg/MdePkg.dec
> @@ -1628,10 +1628,10 @@
>    #  BIT20 - Global Coherency Database changes message.<BR>
>    #  BIT21 - Memory range cachability changes message.<BR>
>    #  BIT22 - Detailed debug message.<BR>
> -  #  BIT28 - Error message.<BR>
> +  #  BIT31 - Error message.<BR>
>    # @Prompt Fixed Debug Message Print Level.
>    # @Expression  0x80000002 | 
> (gEfiMdePkgTokenSpaceGuid.PcdFixedDebugPrintErrorLevel & 0x7F84AA00) == 0
> -  
> gEfiMdePkgTokenSpaceGuid.PcdFixedDebugPrintErrorLevel|0x80000000|UINT32|0x30001016
> +  
> gEfiMdePkgTokenSpaceGuid.PcdFixedDebugPrintErrorLevel|0x807B55FF|UINT32|0x30001016
>  

I think this is a great idea, but I propose the value 0xF07FFFFF instead
(or even 0xFFFFFFFF).

The value 0xF07FFFFF comes from OR-ing together all the
PcdDebugPrintErrorLevel values that I collected in my previous email (in
the attached file "PcdDebugPrintErrorLevel.txt").

And the alternative, 0xFFFFFFFF, would *guarantee* that no DSC-specific
setting is regressed, even if it uses some private bits in the mask (for
example, BIT23).

What do you think?

Thanks!
Laszlo

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