[Trusted-services] Any document to integrate smm-gateway into edk2 UEFI project?

We guess that all things we have to do is replace the following implementation into smm client.

EFI_SMM_VARIABLE_PROTOCOL gSmmVariable = { VariableServiceGetVariable, VariableServiceGetNextVariableName, SmmVariableSetVariable, VariableServiceQueryVariableInfo };

EDKII_SMM_VAR_CHECK_PROTOCOL mSmmVarCheck = { VarCheckRegisterSetVariableCheckHandler, VarCheckVariablePropertySet, VarCheckVariablePropertyGet };

And I correct or something we miss? Do you have to document to integrate this feature into UEFI variable smm service?

Carlos