diff options
Diffstat (limited to 'MdeModulePkg/Core/Pei/FwVol/FwVol.c')
| -rw-r--r-- | MdeModulePkg/Core/Pei/FwVol/FwVol.c | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/MdeModulePkg/Core/Pei/FwVol/FwVol.c b/MdeModulePkg/Core/Pei/FwVol/FwVol.c index 7af6748..c684b94 100644 --- a/MdeModulePkg/Core/Pei/FwVol/FwVol.c +++ b/MdeModulePkg/Core/Pei/FwVol/FwVol.c @@ -1374,3 +1374,51 @@ FindNextCoreFvHandle ( return &Private->Fv[Instance];
}
+
+/**
+ After PeiCore image is shadowed into permanent memory, all build-in FvPpi should
+ be re-installed with the instance in permanent memory and all cached FvPpi pointers in
+ PrivateData->Fv[] array should be fixed up to be pointed to the one in permenant
+ memory.
+
+ @param PrivateData Pointer to PEI_CORE_INSTANCE.
+**/
+VOID
+PeiReinitializeFv (
+ IN PEI_CORE_INSTANCE *PrivateData
+ )
+{
+ VOID *OldFfs2FvPpi;
+ EFI_PEI_PPI_DESCRIPTOR *OldDescriptor;
+ UINTN Index;
+ EFI_STATUS Status;
+
+ //
+ // Locate old build-in Ffs2 EFI_PEI_FIRMWARE_VOLUME_PPI which
+ // in flash.
+ //
+ Status = PeiServicesLocatePpi (
+ &gEfiFirmwareFileSystem2Guid,
+ 0,
+ &OldDescriptor,
+ &OldFfs2FvPpi
+ );
+ ASSERT_EFI_ERROR (Status);
+
+ //
+ // Re-install the EFI_PEI_FIRMWARE_VOLUME_PPI for build-in Ffs2
+ // which is shadowed from flash to permanent memory within PeiCore image.
+ //
+ Status = PeiServicesReInstallPpi (OldDescriptor, &mPeiFfs2FvPpiList);
+ ASSERT_EFI_ERROR (Status);
+
+ //
+ // Fixup all FvPpi pointers for the implementation in flash to permanent memory.
+ //
+ for (Index = 0; Index < FixedPcdGet32 (PcdPeiCoreMaxFvSupported); Index ++) {
+ if (PrivateData->Fv[Index].FvPpi == OldFfs2FvPpi) {
+ PrivateData->Fv[Index].FvPpi = &mPeiFfs2FvPpi;
+ }
+ }
+}
+
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