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gEfiTpmDeviceSelectedGuid

GUID used to select supported TPM instance from UI.
Include/Guid/TpmInstance.h

GUID Information

GUID's Guid NameGUID's Guid
gEfiTpmDeviceSelectedGuid{ 0x7f4158d3, 0x74d, 0x456d, { 0x8c, 0xb2, 0x1, 0xf9, 0xc8, 0xf7, 0x9d, 0xaa } }

Refer to Header File

SecurityPkg/Include/Guid/TpmInstance.h