return EFI_UNSUPPORTED if the hardware does not support hiding of SMRAM.\r
\r
@param PeiServices General purpose services available to every PEIM.\r
@param This The pointer to the SMM Access Interface.\r
@param DescriptorIndex The region of SMRAM to Close.\r
return EFI_UNSUPPORTED if the hardware does not support hiding of SMRAM.\r
\r
@param PeiServices General purpose services available to every PEIM.\r
@param This The pointer to the SMM Access Interface.\r
@param DescriptorIndex The region of SMRAM to Close.\r