Reviewed-by: Liming Gao <liming....@intel.com> > -----Original Message----- > From: Zeng, Star > Sent: Wednesday, November 11, 2015 6:07 PM > To: edk2-devel@lists.01.org > Cc: Gao, Liming > Subject: [PATCH] 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....@intel.com> > Contributed-under: TianoCore Contribution Agreement 1.0 > Signed-off-by: Star Zeng <star.z...@intel.com> > --- > MdeModulePkg/Core/Pei/Dispatcher/Dispatcher.c | 15 +++++++++++---- > 1 file changed, 11 insertions(+), 4 deletions(-) > > diff --git a/MdeModulePkg/Core/Pei/Dispatcher/Dispatcher.c > b/MdeModulePkg/Core/Pei/Dispatcher/Dispatcher.c > index 7480b66..e7e795d 100644 > --- a/MdeModulePkg/Core/Pei/Dispatcher/Dispatcher.c > +++ b/MdeModulePkg/Core/Pei/Dispatcher/Dispatcher.c > @@ -1056,7 +1056,7 @@ PeiDispatcher ( > ASSERT_EFI_ERROR (Status); > if (FvFileInfo.FileType == > EFI_FV_FILETYPE_FIRMWARE_VOLUME_IMAGE) { > // > - // For Fv type file, Produce new FV PPI and FV hob > + // For Fv type file, Produce new FvInfo PPI and FV hob > // > Status = ProcessFvFile (Private, &Private->Fv[FvCount], > PeimFileHandle); > if (Status == EFI_SUCCESS) { > @@ -1065,6 +1065,13 @@ PeiDispatcher ( > // > Private->Fv[FvCount].PeimState[PeimCount]++; > Private->PeimDispatchOnThisPass = TRUE; > + } else { > + // > + // The related GuidedSectionExtraction/Decompress PPI for the > + // encapsulated FV image section may be installed in the rest > + // of this do-while loop, so need to make another pass. > + // > + Private->PeimNeedingDispatch = TRUE; > } > } else { > // > @@ -1192,11 +1199,11 @@ PeiDispatcher ( > Private->CurrentPeimFvCount = 0; > > // > - // PeimNeedingDispatch being TRUE means we found a PEIM that did not get > + // PeimNeedingDispatch being TRUE means we found a PEIM/FV that did not > get > // dispatched. So we need to make another pass > // > - // PeimDispatchOnThisPass being TRUE means we dispatched a PEIM on this > - // pass. If we did not dispatch a PEIM there is no point in trying again > + // PeimDispatchOnThisPass being TRUE means we dispatched a PEIM/FV on > this > + // pass. If we did not dispatch a PEIM/FV there is no point in trying > again > // as it will fail the next time too (nothing has changed). > // > } while (Private->PeimNeedingDispatch && Private->PeimDispatchOnThisPass); > -- > 1.9.5.msysgit.0
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