Hi All,
I am trying to decode the UEFI image file and to extract compressed modules. I
use the following function to extract compressed modules:
EFI_STATUS
Extract (
IN VOID *Source,
IN UINT32 SrcSize,
OUT UCHAR **Destination,
OUT UINT32 *DstSize,
IN UINTN Algorithm
)
Where Algorithm 1 EFI Decompress
Algorithm 2 Tiano Decompress
On analysing, the difference between the two algorithm is that mPBit is set to
4 for EFI decompress algorithm and 5 for Tiano decompress algorithm. Few ROM
files uses Algorithm 1 and few uses Algorithm 2.
Is there any way by which I can arrive the Algorithm from the compressed data?
>From UEFI Spec 2.4, Section 18.2 gives details of compressed data format. Can
>you please guide me on how to proceed from this.
Thanks,
Murali.S
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