diff options
Diffstat (limited to 'MdeModulePkg/Universal/PCD/Pei/Pcd.c')
| -rw-r--r-- | MdeModulePkg/Universal/PCD/Pei/Pcd.c | 235 |
1 files changed, 185 insertions, 50 deletions
diff --git a/MdeModulePkg/Universal/PCD/Pei/Pcd.c b/MdeModulePkg/Universal/PCD/Pei/Pcd.c index 91eb9d6..f821395 100644 --- a/MdeModulePkg/Universal/PCD/Pei/Pcd.c +++ b/MdeModulePkg/Universal/PCD/Pei/Pcd.c @@ -229,6 +229,103 @@ PcdSetNvStoreDefaultIdCallBack ( }
/**
+ Report Pei PCD database of all SKUs as Guid HOB so that DxePcd can access it.
+
+ @param PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation
+ @param NotifyDescriptor Address of the notification descriptor data structure.
+ @param Ppi Address of the PPI that was installed.
+
+ @retval EFI_SUCCESS Successfully update the Boot records.
+**/
+EFI_STATUS
+EFIAPI
+EndOfPeiSignalPpiNotifyCallback (
+ IN EFI_PEI_SERVICES **PeiServices,
+ IN EFI_PEI_NOTIFY_DESCRIPTOR *NotifyDescriptor,
+ IN VOID *Ppi
+ )
+{
+ PEI_PCD_DATABASE *Database;
+ EFI_BOOT_MODE BootMode;
+ EFI_STATUS Status;
+ UINTN Instance;
+ EFI_PEI_FV_HANDLE VolumeHandle;
+ EFI_PEI_FILE_HANDLE FileHandle;
+ VOID *PcdDb;
+ UINT32 Length;
+ PEI_PCD_DATABASE *PeiPcdDb;
+
+ Status = PeiServicesGetBootMode(&BootMode);
+ ASSERT_EFI_ERROR (Status);
+
+ //
+ // Don't need to report it on S3 boot.
+ //
+ if (BootMode == BOOT_ON_S3_RESUME) {
+ return EFI_SUCCESS;
+ }
+
+ PeiPcdDb = GetPcdDatabase();
+ if (PeiPcdDb->SystemSkuId != (SKU_ID) 0) {
+ //
+ // SkuId has been set. Don't need to report it to DXE phase.
+ //
+ return EFI_SUCCESS;
+ }
+
+ //
+ // Get full PCD database from PcdPeim FileHandle
+ //
+ Instance = 0;
+ FileHandle = NULL;
+ while (TRUE) {
+ //
+ // Traverse all firmware volume instances
+ //
+ Status = PeiServicesFfsFindNextVolume (Instance, &VolumeHandle);
+ //
+ // Error should not happen
+ //
+ ASSERT_EFI_ERROR (Status);
+
+ //
+ // Find PcdDb file from the beginning in this firmware volume.
+ //
+ FileHandle = NULL;
+ Status = PeiServicesFfsFindFileByName (&gEfiCallerIdGuid, VolumeHandle, &FileHandle);
+ if (!EFI_ERROR (Status)) {
+ //
+ // Find PcdPeim FileHandle in this volume
+ //
+ break;
+ }
+ //
+ // We cannot find PcdPeim in this firmware volume, then search the next volume.
+ //
+ Instance++;
+ }
+
+ //
+ // Find PEI PcdDb and Build second PcdDB GuidHob
+ //
+ Status = PeiServicesFfsFindSectionData (EFI_SECTION_RAW, FileHandle, &PcdDb);
+ ASSERT_EFI_ERROR (Status);
+ Length = PeiPcdDb->LengthForAllSkus;
+ Database = BuildGuidHob (&gPcdDataBaseHobGuid, Length);
+ CopyMem (Database, PcdDb, Length);
+
+ return EFI_SUCCESS;
+}
+
+EFI_PEI_NOTIFY_DESCRIPTOR mEndOfPeiSignalPpiNotifyList[] = {
+ {
+ (EFI_PEI_PPI_DESCRIPTOR_NOTIFY_CALLBACK | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),
+ &gEfiEndOfPeiSignalPpiGuid,
+ EndOfPeiSignalPpiNotifyCallback
+ }
+};
+
+/**
Main entry for PCD PEIM driver.
This routine initialize the PCD database for PEI phase and install PCD_PPI/EFI_PEI_PCD_PPI.
@@ -262,6 +359,9 @@ PcdPeimInit ( Status = PeiServicesInstallPpi (&mPpiList2[0]);
ASSERT_EFI_ERROR (Status);
+ Status = PeiServicesNotifyPpi (&mEndOfPeiSignalPpiNotifyList[0]);
+ ASSERT_EFI_ERROR (Status);
+
Status = PeiRegisterCallBackOnSet (
&gEfiMdeModulePkgTokenSpaceGuid,
PcdToken(PcdSetNvStoreDefaultId),
@@ -366,6 +466,14 @@ PeiPcdSetSku ( PEI_PCD_DATABASE *PeiPcdDb;
SKU_ID *SkuIdTable;
UINTN Index;
+ EFI_STATUS Status;
+ UINTN Instance;
+ EFI_PEI_FV_HANDLE VolumeHandle;
+ EFI_PEI_FILE_HANDLE FileHandle;
+ VOID *PcdDb;
+ UINT32 Length;
+ PCD_DATABASE_SKU_DELTA *SkuDelta;
+ PCD_DATA_DELTA *SkuDeltaData;
PeiPcdDb = GetPcdDatabase();
@@ -391,8 +499,70 @@ PeiPcdSetSku ( SkuIdTable = (SKU_ID *) ((UINT8 *) PeiPcdDb + PeiPcdDb->SkuIdTableOffset);
for (Index = 0; Index < SkuIdTable[0]; Index++) {
if (SkuId == SkuIdTable[Index + 1]) {
- DEBUG ((EFI_D_INFO, "PcdPei - Set current SKU Id to 0x%lx.\n", (SKU_ID) SkuId));
+ break;
+ }
+ }
+
+ if (Index < SkuIdTable[0]) {
+ //
+ // Get full PCD database from PcdPeim FileHandle
+ //
+ Instance = 0;
+ FileHandle = NULL;
+ while (TRUE) {
+ //
+ // Traverse all firmware volume instances
+ //
+ Status = PeiServicesFfsFindNextVolume (Instance, &VolumeHandle);
+ //
+ // Error should not happen
+ //
+ ASSERT_EFI_ERROR (Status);
+
+ //
+ // Find PcdDb file from the beginning in this firmware volume.
+ //
+ FileHandle = NULL;
+ Status = PeiServicesFfsFindFileByName (&gEfiCallerIdGuid, VolumeHandle, &FileHandle);
+ if (!EFI_ERROR (Status)) {
+ //
+ // Find PcdPeim FileHandle in this volume
+ //
+ break;
+ }
+ //
+ // We cannot find PcdPeim in this firmware volume, then search the next volume.
+ //
+ Instance++;
+ }
+
+ //
+ // Find the delta data between the different Skus
+ //
+ Status = PeiServicesFfsFindSectionData (EFI_SECTION_RAW, FileHandle, &PcdDb);
+ ASSERT_EFI_ERROR (Status);
+ Length = PeiPcdDb->LengthForAllSkus;
+ Index = (PeiPcdDb->Length + 7) & (~7);
+ SkuDelta = NULL;
+ while (Index < Length) {
+ SkuDelta = (PCD_DATABASE_SKU_DELTA *) ((UINT8 *) PcdDb + Index);
+ if (SkuDelta->SkuId == SkuId && SkuDelta->SkuIdCompared == 0) {
+ break;
+ }
+ Index = (Index + SkuDelta->Length + 7) & (~7);
+ }
+
+ //
+ // Patch the delta data into current PCD database
+ //
+ if (Index < Length && SkuDelta != NULL) {
+ SkuDeltaData = (PCD_DATA_DELTA *) (SkuDelta + 1);
+ while ((UINT8 *) SkuDeltaData < (UINT8 *) SkuDelta + SkuDelta->Length) {
+ *((UINT8 *) PeiPcdDb + SkuDeltaData->Offset) = (UINT8) SkuDeltaData->Value;
+ SkuDeltaData ++;
+ }
PeiPcdDb->SystemSkuId = (SKU_ID) SkuId;
+ DEBUG ((DEBUG_INFO, "PcdPei - Set current SKU Id to 0x%lx.\n", (SKU_ID) SkuId));
return;
}
}
@@ -401,6 +571,7 @@ PeiPcdSetSku ( // Invalid input SkuId, the default SKU Id will be still used for the system.
//
DEBUG ((EFI_D_INFO, "PcdPei - Invalid input SkuId, the default SKU Id will be still used.\n"));
+
return;
}
@@ -1406,9 +1577,7 @@ GetPtrTypeSize ( {
INTN SizeTableIdx;
UINTN LocalTokenNumber;
- SKU_ID *SkuIdTable;
SIZE_INFO *SizeTable;
- UINTN Index;
SizeTableIdx = GetSizeTableIndex (LocalTokenNumberTableIdx, Database);
@@ -1432,27 +1601,12 @@ GetPtrTypeSize ( //
return *MaxSize;
} else {
- if ((LocalTokenNumber & PCD_TYPE_SKU_ENABLED) == 0) {
- //
- // We have only two entry for Non-Sku enabled PCD entry:
- // 1) MAX SIZE
- // 2) Current Size
- //
- return SizeTable[SizeTableIdx + 1];
- } else {
- //
- // We have these entry for SKU enabled PCD entry
- // 1) MAX SIZE
- // 2) Current Size for each SKU_ID (It is equal to MaxSku).
- //
- SkuIdTable = GetSkuIdArray (LocalTokenNumberTableIdx, Database);
- for (Index = 0; Index < SkuIdTable[0]; Index++) {
- if (SkuIdTable[1 + Index] == Database->SystemSkuId) {
- return SizeTable[SizeTableIdx + 1 + Index];
- }
- }
- return SizeTable[SizeTableIdx + 1];
- }
+ //
+ // We have only two entry for Non-Sku enabled PCD entry:
+ // 1) MAX SIZE
+ // 2) Current Size
+ //
+ return SizeTable[SizeTableIdx + 1];
}
}
@@ -1479,9 +1633,7 @@ SetPtrTypeSize ( {
INTN SizeTableIdx;
UINTN LocalTokenNumber;
- SKU_ID *SkuIdTable;
SIZE_INFO *SizeTable;
- UINTN Index;
UINTN MaxSize;
SizeTableIdx = GetSizeTableIndex (LocalTokenNumberTableIdx, Database);
@@ -1510,30 +1662,13 @@ SetPtrTypeSize ( return FALSE;
}
- if ((LocalTokenNumber & PCD_TYPE_SKU_ENABLED) == 0) {
- //
- // We have only two entry for Non-Sku enabled PCD entry:
- // 1) MAX SIZE
- // 2) Current Size
- //
- SizeTable[SizeTableIdx + 1] = (SIZE_INFO) *CurrentSize;
- return TRUE;
- } else {
- //
- // We have these entry for SKU enabled PCD entry
- // 1) MAX SIZE
- // 2) Current Size for each SKU_ID (It is equal to MaxSku).
- //
- SkuIdTable = GetSkuIdArray (LocalTokenNumberTableIdx, Database);
- for (Index = 0; Index < SkuIdTable[0]; Index++) {
- if (SkuIdTable[1 + Index] == Database->SystemSkuId) {
- SizeTable[SizeTableIdx + 1 + Index] = (SIZE_INFO) *CurrentSize;
- return TRUE;
- }
- }
- SizeTable[SizeTableIdx + 1] = (SIZE_INFO) *CurrentSize;
- return TRUE;
- }
+ //
+ // We have only two entry for Non-Sku enabled PCD entry:
+ // 1) MAX SIZE
+ // 2) Current Size
+ //
+ SizeTable[SizeTableIdx + 1] = (SIZE_INFO) *CurrentSize;
+ return TRUE;
}
}
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