audk/MdeModulePkg/Core/Pei/Dispatcher
Star Zeng 116cd8563c MdeModulePkg PeiCore: PEI dispatcher need retry to process NOT_DISPATCHED FV
A corner case like below will cause a NOT_DISPATCHED FV has no opportunity to
be dispatched.
  1. FV_RECOVERY has SecCore, PeiCore and some other PEI modules, a module will
    report FVMAIN_COMPACT and FV_RECOVERY2 in sequence.
  2. FVMAIN_COMPACT has a FV image file with GUIDED FV image section in it.
  3. FV_RECOVERY2 has DxeIpl and other PEI modules, the DxeIpl will install
     SectionExtractionPpi
  If ALL the PEIMs in FV_RECOVERY and FV_RECOVERY2 have DEPEX satisfied and
  executed in one loop, PeimNeedingDispatch will be always FALSE, FVMAIN_COMPACT
  will have no opportunity to be decompressed and dispatched as DxeIpl executes
  after the first processing to FVMAIN_COMPACT.

The patch is to set PeimNeedingDispatch to TRUE when ProcessFvFile() not successfully,
then the NOT_DISPATCHED FV could have another opportunity to be processed.

Cc: Liming Gao <liming.gao@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Eugene Cohen <eugene@hp.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18781 6f19259b-4bc3-4df7-8a09-765794883524
2015-11-13 02:43:37 +00:00
..
Dispatcher.c MdeModulePkg PeiCore: PEI dispatcher need retry to process NOT_DISPATCHED FV 2015-11-13 02:43:37 +00:00