Intel Extensible Firmware Interface - Manual (Page 758)

Extensible Firmware Interface Specification
17-18 12/01/02 Version 1.10
Description
The GetInfo() function retrieves the size of the uncompressed buffer and the temporary scratch
buffer required to decompress the buffer specified by Source and SourceSize . If the size of
the uncompressed buffer or the size of the scratch buffer cannot be determined from the
compressed data specified by
Source and SourceData , then EFI_INVALID_PARAMETER is
returned. Otherwise, the size of the uncompressed buffer is returned in DestinationSize , the
size of the scratch buffer is returned in ScratchSize , and EFI_SUCCESS is returned.
The GetInfo() function does not have scratch buffer available to perform a thorough checking
of the validity of the source data. It just retrieves the “Original Size” field from the beginning bytes
of the source data and output it as
DestinationSize . And ScratchSize is specific to the
decompression implementation.
Status Codes Returned
EFI_SUCCESS The size of the uncompressed data was returned in
DestinationSize and the size of the scratch buffer was
returned in ScratchSize .
EFI_INVALID_PARAMETER The size of the uncompressed data or the size of the scratch buffer
cannot be determined from the compressed data specified by
Source and SourceData .