Thanks, Mike. I will drop the applicable code change and send a v2 series shortly.

Regards,
Kun

On 7/13/2022 5:47 PM, Michael D Kinney wrote:
Hi Kun,

I would prefer to focus on the spec issue with this patch set and only
update DEC and .H file.

The idea of removing all the status code related PCDs and updating all the
source files to use the #defines is a different change.  And that change may
impact many downstream modules/libs that currently use the PCDs.

Mike


-----Original Message-----
From: Kun Qin <kuqi...@gmail.com>
Sent: Wednesday, July 13, 2022 5:39 PM
To: devel@edk2.groups.io; Kinney, Michael D <michael.d.kin...@intel.com>
Cc: Yao, Jiewen <jiewen....@intel.com>; Wang, Jian J <jian.j.w...@intel.com>; Zhang, 
Qi1 <qi1.zh...@intel.com>; Kumar, Rahul1
<rahul1.ku...@intel.com>; Andrew Fish <af...@apple.com>; Leif Lindholm 
<l...@nuviainc.com>; Gao, Liming
<gaolim...@byosoft.com.cn>; Liu, Zhiguang <zhiguang....@intel.com>
Subject: Re: [edk2-devel] [edk2-staging][PATCH v1 0/7] Add TPM subclass 
definition

Hi Mike,

The intention was to encourage the usage of new definition in .H file
once the definition
is updated. The PCD is left as is only to serve as backwards
compatibility purpose.

Do you think only updating the DEC and .H file is more ideal? I could
drop the other changes
if so desired.

Thanks,
Kun

On 7/13/2022 5:30 PM, Michael D Kinney wrote:
Hi Kun,

Why was the PCD usage not preserved and only the value updated in the DEC file 
and .H file?

Mike

-----Original Message-----
From: Kun Qin <kuqi...@gmail.com>
Sent: Wednesday, July 13, 2022 5:21 PM
To: devel@edk2.groups.io
Cc: Yao, Jiewen <jiewen....@intel.com>; Wang, Jian J <jian.j.w...@intel.com>; Zhang, 
Qi1 <qi1.zh...@intel.com>; Kumar,
Rahul1
<rahul1.ku...@intel.com>; Andrew Fish <af...@apple.com>; Leif Lindholm 
<l...@nuviainc.com>; Kinney, Michael D
<michael.d.kin...@intel.com>; Gao, Liming <gaolim...@byosoft.com.cn>; Liu, Zhiguang 
<zhiguang....@intel.com>
Subject: Re: [edk2-devel] [edk2-staging][PATCH v1 0/7] Add TPM subclass 
definition

Hi SecurityPkg maintainers & EDK2 stewards,

I sent out this patch series intending to update/fix the PI spec through
code first process.

Could you please shed some light on it and let me know if any feedback?

Thanks in advance!

Regards,
Kun

On 7/5/2022 8:38 PM, Kun Qin via groups.io wrote:
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3966

   From PI Specification v1.7 Errata A, EFI_PERIPHERAL_DOCKING is defined as
0xD0000 (as well as included in PiStatusCode.h).

However, subclass employed as PCD for TPM peripheral in SecurityPkg is
also defined as 0xD0000. The TPM subclass code was used in TcgPei.c when
reporting error codes.

The collision of subclass definition could cause the parsing of reported
errors being ambiguous.

This patch series add EFI_PERIPHERAL_TPM as a spec-defined value and
removed potential usages in the SecurityPkg.

Patch v1 branch: https://github.com/kuqin12/edk2/tree/BZ3966-add_tpm_subclass

Cc: Jiewen Yao <jiewen....@intel.com>
Cc: Jian J Wang <jian.j.w...@intel.com>
Cc: Qi Zhang <qi1.zh...@intel.com>
Cc: Rahul Kumar <rahul1.ku...@intel.com>
Cc: Andrew Fish <af...@apple.com>
Cc: Leif Lindholm <l...@nuviainc.com>
Cc: Michael D Kinney <michael.d.kin...@intel.com>
Cc: Liming Gao <gaolim...@byosoft.com.cn>
Cc: Zhiguang Liu <zhiguang....@intel.com>

Kun Qin (7):
     EDK2 Code First: PI Specification: New peripheral subclass for TPM
     MdePkg: MmCommunication: Add TPM subclass definition to MdePkg
     SecurityPkg: Tcg2Dxe: Replace PcdStatusCodeSubClassTpmDevice
     SecurityPkg: Tcg2Pei: Replace PcdStatusCodeSubClassTpmDevice
     SecurityPkg: TcgDxe: Replace PcdStatusCodeSubClassTpmDevice
     SecurityPkg: TcgPei: Replace PcdStatusCodeSubClassTpmDevice
     SecurityPkg: SubClassTpm: Updated default value

    SecurityPkg/Tcg/Tcg2Dxe/Tcg2Dxe.c   |  4 +-
    SecurityPkg/Tcg/Tcg2Pei/Tcg2Pei.c   |  4 +-
    SecurityPkg/Tcg/TcgDxe/TcgDxe.c     |  2 +-
    SecurityPkg/Tcg/TcgPei/TcgPei.c     |  4 +-
    CodeFirst/BZ3966-SpecChange.md      | 60 ++++++++++++++++++++
    MdePkg/Include/Pi/PiStatusCode.h    |  1 +
    SecurityPkg/SecurityPkg.dec         |  6 +-
    SecurityPkg/SecurityPkg.uni         |  2 +-
    SecurityPkg/Tcg/Tcg2Dxe/Tcg2Dxe.inf |  1 -
    SecurityPkg/Tcg/Tcg2Pei/Tcg2Pei.inf |  1 -
    SecurityPkg/Tcg/TcgDxe/TcgDxe.inf   |  1 -
    SecurityPkg/Tcg/TcgPei/TcgPei.inf   |  1 -
    12 files changed, 72 insertions(+), 15 deletions(-)
    create mode 100644 CodeFirst/BZ3966-SpecChange.md










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