[Bug]: <Mismatch of EFI Conformance Profile Table GUID when UEFI application reads from EFI System Table>

[sathishas89]

Is there an existing issue for this?

• I have searched existing issues

Bug Type

• Firmware
• Tool
• Unit Test

Code first?

• Yes

What packages are impacted?

MdeModulePkg, MdePkg

Which targets are impacted by this bug?

DEBUG, RELEASE

Current Behavior

When I read EFI Conformance Profile Table GUID, UEFI application returns following GUID's on Buildroot Qemu:
gST->GUID is: {36122546-F7EF-4C8F-BD9B-EB8525B50C0B} -->EFI Conformance Profile Table GUID
gST->GUID is: {B122A263-3661-4F68-9929-78F8B0D62180}
gST->GUID is: {EB66918A-7EEF-402A-842E-931D21C38AE9}
gST->GUID is: {EB9D2D31-2D88-11D3-9A16-0090273FC14D}
gST->GUID is: {B1B621D5-F19C-41A5-830B-D9152C69AAE0}

But as per UEFI 2.10 specification, EFI Conformance Profile Table GUID is 36122546-F7E7-4C8F-BD9B-EB8525B50C0B and when I read EFI System Table it's giving 36122546-F7EF-4C8F-BD9B-EB8525B50C0B guid.

Expected Behavior

UEFI edk2 firmware should return 36122546-F7E7-4C8F-BD9B-EB8525B50C0B for EFI Conformance Table.

Steps To Reproduce

Tested environment: Qemu Arm64
Read guid using gST->ConfigurationTable[TableWalker].VendorGuid.
Compare with gEfiConfProfilesTableGuid

Build Environment

- OS(s): Ubuntu 22.04
- Tool Chain(s): aarch64-linux-gnu-

Version Information

Tag: edk2-stable202411

Urgency

High

Are you going to fix this?

Someone else needs to fix it

Do you need maintainer feedback?

Maintainer feedback requested

Anything else?

No response

[YangGangUEFI]

Is this related to u-boot? If yes, please check the following information.

I found that the ECPT GUID in u-boot is 36122546-F7EF-4C8F-BD9B-EB8525B50C0B, which is incorrect.

And I have sent a patch to u-boot.
Now it's already on the Pull request efi-next-20250105 of u-boot, and the details of the commit can be found at https://source.denx.de/u-boot/custodians/u-boot-efi/-/tree/efi-next-20250105?ref_type=tags (the latest commit:efi: Correct ECPT table GUID )