diff options
| -rw-r--r-- | MdeModulePkg/Universal/PCD/Pei/Pcd.c | 106 | ||||
| -rw-r--r-- | MdeModulePkg/Universal/PCD/Pei/Pcd.inf | 3 | ||||
| -rw-r--r-- | MdeModulePkg/Universal/PCD/Pei/Service.h | 3 |
3 files changed, 111 insertions, 1 deletions
diff --git a/MdeModulePkg/Universal/PCD/Pei/Pcd.c b/MdeModulePkg/Universal/PCD/Pei/Pcd.c index a3f7337..91eb9d6 100644 --- a/MdeModulePkg/Universal/PCD/Pei/Pcd.c +++ b/MdeModulePkg/Universal/PCD/Pei/Pcd.c @@ -130,6 +130,105 @@ EFI_PEI_PPI_DESCRIPTOR mPpiList2[] = { };
/**
+ Callback on SET PcdSetNvStoreDefaultId
+
+ Once PcdSetNvStoreDefaultId is set, the default NV storage will be found from
+ PcdNvStoreDefaultValueBuffer, and built into VariableHob.
+
+ @param[in] CallBackGuid The PCD token GUID being set.
+ @param[in] CallBackToken The PCD token number being set.
+ @param[in, out] TokenData A pointer to the token data being set.
+ @param[in] TokenDataSize The size, in bytes, of the data being set.
+
+**/
+VOID
+EFIAPI
+PcdSetNvStoreDefaultIdCallBack (
+ IN CONST EFI_GUID *CallBackGuid, OPTIONAL
+ IN UINTN CallBackToken,
+ IN OUT VOID *TokenData,
+ IN UINTN TokenDataSize
+ )
+{
+ EFI_STATUS Status;
+ UINT16 DefaultId;
+ SKU_ID SkuId;
+ UINTN FullSize;
+ UINTN Index;
+ UINT8 *DataBuffer;
+ UINT8 *VarStoreHobData;
+ UINT8 *BufferEnd;
+ BOOLEAN IsFound;
+ VARIABLE_STORE_HEADER *NvStoreBuffer;
+ PCD_DEFAULT_DATA *DataHeader;
+ PCD_DEFAULT_INFO *DefaultInfo;
+ PCD_DATA_DELTA *DeltaData;
+
+ DefaultId = *(UINT16 *) TokenData;
+ SkuId = GetPcdDatabase()->SystemSkuId;
+ IsFound = FALSE;
+
+ if (PeiPcdGetSizeEx (&gEfiMdeModulePkgTokenSpaceGuid, PcdToken (PcdNvStoreDefaultValueBuffer)) > sizeof (PCD_NV_STORE_DEFAULT_BUFFER_HEADER)) {
+ DataBuffer = (UINT8 *) PeiPcdGetPtrEx (&gEfiMdeModulePkgTokenSpaceGuid, PcdToken (PcdNvStoreDefaultValueBuffer));
+ FullSize = ((PCD_NV_STORE_DEFAULT_BUFFER_HEADER *) DataBuffer)->Length;
+ DataHeader = (PCD_DEFAULT_DATA *) (DataBuffer + sizeof (PCD_NV_STORE_DEFAULT_BUFFER_HEADER));
+ //
+ // The first section data includes NV storage default setting.
+ //
+ NvStoreBuffer = (VARIABLE_STORE_HEADER *) ((UINT8 *) DataHeader + sizeof (DataHeader->DataSize) + DataHeader->HeaderSize);
+ VarStoreHobData = (UINT8 *) BuildGuidHob (&NvStoreBuffer->Signature, NvStoreBuffer->Size);
+ ASSERT (VarStoreHobData != NULL);
+ CopyMem (VarStoreHobData, NvStoreBuffer, NvStoreBuffer->Size);
+ //
+ // Find the matched SkuId and DefaultId in the first section
+ //
+ DefaultInfo = &(DataHeader->DefaultInfo[0]);
+ BufferEnd = (UINT8 *) DataHeader + sizeof (DataHeader->DataSize) + DataHeader->HeaderSize;
+ while ((UINT8 *) DefaultInfo < BufferEnd) {
+ if (DefaultInfo->DefaultId == DefaultId && DefaultInfo->SkuId == SkuId) {
+ IsFound = TRUE;
+ break;
+ }
+ DefaultInfo ++;
+ }
+ //
+ // Find the matched SkuId and DefaultId in the remaining section
+ //
+ Index = sizeof (PCD_NV_STORE_DEFAULT_BUFFER_HEADER) + ((DataHeader->DataSize + 7) & (~7));
+ DataHeader = (PCD_DEFAULT_DATA *) (DataBuffer + Index);
+ while (!IsFound && Index < FullSize && DataHeader->DataSize != 0xFFFFFFFF) {
+ DefaultInfo = &(DataHeader->DefaultInfo[0]);
+ BufferEnd = (UINT8 *) DataHeader + sizeof (DataHeader->DataSize) + DataHeader->HeaderSize;
+ while ((UINT8 *) DefaultInfo < BufferEnd) {
+ if (DefaultInfo->DefaultId == DefaultId && DefaultInfo->SkuId == SkuId) {
+ IsFound = TRUE;
+ break;
+ }
+ DefaultInfo ++;
+ }
+ if (IsFound) {
+ DeltaData = (PCD_DATA_DELTA *) BufferEnd;
+ BufferEnd = (UINT8 *) DataHeader + DataHeader->DataSize;
+ while ((UINT8 *) DeltaData < BufferEnd) {
+ *(VarStoreHobData + DeltaData->Offset) = (UINT8) DeltaData->Value;
+ DeltaData ++;
+ }
+ break;
+ }
+ Index = (Index + DataHeader->DataSize + 7) & (~7) ;
+ DataHeader = (PCD_DEFAULT_DATA *) (DataBuffer + Index);
+ }
+ }
+
+ Status = PcdUnRegisterCallBackOnSet (
+ &gEfiMdeModulePkgTokenSpaceGuid,
+ PcdToken(PcdSetNvStoreDefaultId),
+ PcdSetNvStoreDefaultIdCallBack
+ );
+ ASSERT_EFI_ERROR (Status);
+}
+
+/**
Main entry for PCD PEIM driver.
This routine initialize the PCD database for PEI phase and install PCD_PPI/EFI_PEI_PCD_PPI.
@@ -163,6 +262,13 @@ PcdPeimInit ( Status = PeiServicesInstallPpi (&mPpiList2[0]);
ASSERT_EFI_ERROR (Status);
+ Status = PeiRegisterCallBackOnSet (
+ &gEfiMdeModulePkgTokenSpaceGuid,
+ PcdToken(PcdSetNvStoreDefaultId),
+ PcdSetNvStoreDefaultIdCallBack
+ );
+ ASSERT_EFI_ERROR (Status);
+
return Status;
}
diff --git a/MdeModulePkg/Universal/PCD/Pei/Pcd.inf b/MdeModulePkg/Universal/PCD/Pei/Pcd.inf index 1d9c924..8f778e1 100644 --- a/MdeModulePkg/Universal/PCD/Pei/Pcd.inf +++ b/MdeModulePkg/Universal/PCD/Pei/Pcd.inf @@ -330,6 +330,7 @@ ## SOMETIMES_CONSUMES ## HOB
gPcdDataBaseHobGuid
gPcdDataBaseSignatureGuid ## CONSUMES ## GUID # PCD database signature GUID.
+ gEfiMdeModulePkgTokenSpaceGuid ## SOMETIMES_CONSUMES ## GUID
[Ppis]
gEfiPeiReadOnlyVariable2PpiGuid ## SOMETIMES_CONSUMES
@@ -344,6 +345,8 @@ [Pcd]
gEfiMdeModulePkgTokenSpaceGuid.PcdVpdBaseAddress ## SOMETIMES_CONSUMES
gEfiMdeModulePkgTokenSpaceGuid.PcdMaxPeiPcdCallBackNumberPerPcdEntry ## SOMETIMES_CONSUMES
+ gEfiMdeModulePkgTokenSpaceGuid.PcdNvStoreDefaultValueBuffer ## SOMETIMES_CONSUMES
+ gEfiMdeModulePkgTokenSpaceGuid.PcdSetNvStoreDefaultId ## CONSUMES
[Depex]
TRUE
diff --git a/MdeModulePkg/Universal/PCD/Pei/Service.h b/MdeModulePkg/Universal/PCD/Pei/Service.h index fa14abe..e3b68aa 100644 --- a/MdeModulePkg/Universal/PCD/Pei/Service.h +++ b/MdeModulePkg/Universal/PCD/Pei/Service.h @@ -23,6 +23,7 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. #include <Ppi/PiPcdInfo.h>
#include <Guid/PcdDataBaseHobGuid.h>
#include <Guid/PcdDataBaseSignatureGuid.h>
+#include <Guid/VariableFormat.h>
#include <Library/DebugLib.h>
#include <Library/PeimEntryPoint.h>
#include <Library/BaseLib.h>
@@ -36,7 +37,7 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. // Please make sure the PCD Serivce PEIM Version is consistent with
// the version of the generated PEIM PCD Database by build tool.
//
-#define PCD_SERVICE_PEIM_VERSION 6
+#define PCD_SERVICE_PEIM_VERSION 7
//
// PCD_PEI_SERVICE_DRIVER_VERSION is defined in Autogen.h.
|