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StandaloneMmPkg/Core: Fix the failure to find uncompressed inner FV 

The MmCoreFfsFindMmDriver only checks for encapsulated compressed FVs.
When an inner FV is uncompressed, StandaloneMmCore will miss the FV and
all the MM drivers in the FV will not be dispatched.
Add checks for uncompressed inner FV to fix this issue.

Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Sami Mujawar <sami.mujawar@arm.com>
Cc: Ray Ni <ray.ni@intel.com>
Signed-off-by: Wei6 Xu <wei6.xu@intel.com>
Reviewed-by: Ray Ni <ray.ni@intel.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
This commit is contained in:
Wei6 Xu 2023-10-30 14:22:16 +08:00 committed by mergify[bot]
parent 4a9fcab124
commit 3c66390e4a
1 changed files with 22 additions and 0 deletions
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22
StandaloneMmPkg/Core/FwVol.c
View File

@ -79,6 +79,8 @@ MmCoreFfsFindMmDriver (
UINTN DepexSize;
UINTN Index;
EFI_COMMON_SECTION_HEADER *Section;
VOID *SectionData;
UINTN SectionDataSize;
UINT32 DstBufferSize;
VOID *ScratchBuffer;
UINT32 ScratchBufferSize;
@ -115,6 +117,26 @@ MmCoreFfsFindMmDriver (
break;
}
//
// Check uncompressed firmware volumes
//
Status = FfsFindSectionData (
EFI_SECTION_FIRMWARE_VOLUME_IMAGE,
FileHeader,
&SectionData,
&SectionDataSize
);
if (!EFI_ERROR (Status)) {
if (SectionDataSize > sizeof (EFI_FIRMWARE_VOLUME_HEADER)) {
InnerFvHeader = (EFI_FIRMWARE_VOLUME_HEADER *)SectionData;
MmCoreFfsFindMmDriver (InnerFvHeader, Depth + 1);
continue;
}
}
//
// Check compressed firmware volumes
//
Status = FfsFindSection (
EFI_SECTION_GUID_DEFINED,
FileHeader,